JP2520571Y2 - Jig for fixing the cam shaft of the fuel injection pump - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig used for positioning and fixing a cam shaft of a fuel injection pump at a predetermined rotational position.

[0002]

2. Description of the Related Art In a row type fuel injection pump, a cam shaft for driving a plunger is housed in a pump casing. Since the camshaft is rotationally driven by the crankshaft of the engine, when the fuel injection pump is attached to the engine, the camshaft is fixed at an appropriate rotational position corresponding to the fuel discharge start position, Must be connected to the crankshaft.

Therefore, in the conventional fuel injection pump, a mark is formed on each of the coupling block that rotates integrally with the cam shaft and the pump casing that supports the cam shaft, and the marks match when the fuel injection pump is attached. By rotating the cam shaft until the above, the rotational position of the cam shaft is adjusted to match the ejection start position.

However, this conventional method requires complicated work such as rotating the crankshaft while looking at the mark when mounting the fuel injection pump, and thus the workability is poor and the mounting work is troublesome. There is.

Therefore, the applicant of the present invention has developed a device capable of easily and accurately fixing the cam shaft at a rotational position corresponding to the discharge start position, and has already disclosed in Japanese Patent Application No. 62-32374.
The application has been completed as "No. 3". The details of this fixing device are shown in FIG.

That is, the pump casing indicated by reference numeral 1 in the drawing is provided with the cam shaft accommodating chamber 2 at the bottom thereof. A single cam shaft 3 is rotatably supported in the cam shaft housing chamber 2. One end of the cam shaft 3 is led out to the outside of the pump casing 1, and this lead end is connected to a crank shaft of an engine (not shown). On the cam shaft 3, a cam 4 for driving a plunger that pressurizes fuel and a disk-shaped flange portion 5 that constitutes a rotating member are integrally formed. The flange portion 5 rotates integrally with the cam shaft 3, and a cutout 6 is formed on the outer peripheral surface of the flange portion 5 as a locking portion used when holding the cam shaft 3 at an appropriate rotation position. .

An opening 7 is formed on the side wall of the pump casing 1 so as to communicate with the cam shaft housing chamber 2. Opening 7
Is provided at a position facing the outer peripheral portion of the flange portion 5, and the opening portion 7 is closed by a housing 8 from the outside of the pump casing 1. A guide hole 10 is formed in the housing 8 and opens into the cam shaft housing chamber 2. The guide hole 10 extends in a direction orthogonal to the axis X ₁ of the cam shaft 3, and one end surface of the housing 8 having one end of the guide hole 10 opened and the other of the housing 8 having the other end of the guide hole 10 opened. The end surfaces are arc-shaped guide surfaces 11a and 11b, respectively, whose rotation center is the axis X ₁ of the cam shaft 3.
Is doing.

A hollow cylindrical guide member 12 is inserted into the guide hole 10. The guide member 12 is provided with an insertion hole 13 that opens to the cam shaft housing chamber 2 on the axis thereof, and the insertion hole 13 faces the outer peripheral surface of the flange portion 5. A large-diameter head portion 14 is formed at the end portion of the guide member 12 that faces the flange portion 5.
The head portion 14 is hooked on an opening edge portion of one end of the guide hole 10, and a surface of the head portion 14 facing the guide surface 11a is curved in an arc shape along the guide surface 11a. Slidably touches. Therefore, the guide member 12 can move along the rotation direction of the flange portion 5 within the opening range of the guide hole 10.

An end portion of the guide member 12 opposite to the head portion 14 is led out to the outside of the housing 8, and a screw portion 15 is formed on the outer peripheral surface of the lead-out portion of the guide member 12. Has been done. A lock nut 17 as a lock member is screwed into the screw portion 15. The surface of the lock nut 17 facing the housing 8 is curved in an arc shape along the guide surface 11b. Therefore, when the lock nut 17 is screwed in, the housing 8 is clamped between the lock nut 17 and the head portion 14 of the guide member 12, and the guide member 12 is guided by the guide hole 1.
Fixed at any position within 0. In this case, the axial center line X ₂ of the insertion hole 13 intersects with the axial line X ₁ of the cam shaft 3 regardless of which position the guide member 12 is fixed. Further, the end portion of the lock nut 17 on the side opposite to the housing 8 is cylindrically extended,
The outer peripheral surface of the lock nut 17 including the tubular portion 17a is
It has a hexagonal shape.

A fixing member 18 made of synthetic resin is axially slidably inserted into the insertion hole 13 of the guide member 12. The fixing member 18 has a rod shape, and a taper-shaped locking convex portion 18a is formed at the insertion tip thereof. When the fixing member 18 is pushed toward the flange portion 5 of the cam shaft 3, the locking convex portion 18a is removably hooked to the notch 6 of the flange portion 5 to prevent the rotation of the cam shaft 3. As a result, the cam shaft 3 is fixed to an appropriate rotation position corresponding to the fuel discharge start position. The end of the fixing member 18 opposite to the locking projection 18a is located inside the extension 17a of the lock nut 17, and the end of the fixing member 18 has a flange-shaped spring. A receiver 19 is provided.

A cap 20 for covering the lock nut 17 is detachably screwed into the housing 8. This
The cap 20 is an end of the fixing member 18 on the spring bearing 19 side.
It has an end face 20a facing the section. This end face 20
Between the spring receiving 19 a and the fixing member 18, a first field
A compression coil spring 21 as a mesh is interposed. The compression coil spring 21 constantly urges the fixing member 18 toward the cam shaft 3 side, and the engaging convex portion 18a of the fixing member 18 is held in the notch 6 by this urging. .

In order to fix the cam shaft 3 to an appropriate rotational position in the fixing device having such a structure, first, the crank shaft or the cam shaft 3 is manually rotated to set the cam shaft 3 to an appropriate rotational position. As a result, the notch 6 faces the opening 7. In this state, the cap 20 is removed to expose the lock nut 17, and the lock nut 17 is loosened. Then, the guide member 12 can move in the rotation direction of the flange portion 5 within the opening range of the guide hole 10, so that the locking protrusion 18a of the fixing member 18 and the notch 6 of the flange portion 5 are aligned with each other. The guide member 12 is moved to adjust the position of the guide member 12. When the position of the guide member 12 is determined, the lock nut 17 is tightened to fix the guide member 12 to the housing 8.

Next, the compression coil spring 21 is inserted into the extension portion 17a of the lock nut 17, and the tip of the insertion is brought into contact with the spring receiver 19 of the fixing member 18. Finally, the cap 20 is screwed into the housing 8 and the cap 20
The compression coil spring 2 between the end surface 20a of the
Compress 1. As a result, the fixing member 18 is biased toward the flange portion 5, so that the locking projection 18a of the fixing member 18 is caught in the notch 6 and the cam shaft 3 is fixed at an appropriate rotation position.

On the other hand, in order to release the fixing of the cam shaft 3, first, the cap 20 is removed to expose the lock nut 17, the compression coil spring 21 is taken out, and the fixing member 18 is inserted from the insertion hole 13 of the guide member 12. Withdraw. Then, as shown by the imaginary line in FIG. 8, the taken-out compression coil spring 21 is inserted into the inside of the extension portion 17a of the lock nut 17, and is interposed between the end surface of the guide member 12 and the spring receiver 19. Finally, the cap 20 is screwed into the housing 8. Then, since the biasing force of the compression coil spring 21 acts on the fixing member 18 in the opposite direction, the fixing member 18 is biased in the direction of separating from the cam shaft 3, and the end portion on the spring receiver 19 side is the end surface of the cap 20. It contacts 20a. As a result, as shown by the imaginary line in FIG.
a is disengaged from the notch 6, and the fixing of the cam shaft 3 is released.

[0015]

However, in the case of this fixing device, a compression coil spring 21 for urging the fixing member 18 toward the cam shaft 3 is interposed between the fixing member 18 and the cap 20. Therefore, when the cap 20 is removed to operate the lock nut 17, the compression coil spring 21
Is also taken out. Therefore, when the lock nut 17 is tightened, the urging force applied to the fixing member 18 disappears, so that the fixing member 18 may rattle. Then, especially when the cam shaft 3 is mistakenly driven while fixing the cam shaft 3, the fixing member 18 is provided.
Since it is made of a soft synthetic resin material in order to prevent the damage, the engaging projection 18a caught in the notch 6 may be damaged or deformed. Therefore, it may not be possible to accurately fix the camshaft 3 to an appropriate rotational position, and there is still room for improvement in this respect.

The present invention has been made in view of the above circumstances. The cam shaft can be accurately and reliably fixed to an appropriate rotational position, and the fixing work can be performed easily. An object of the present invention is to provide a jig for fixing a cam shaft of a fuel injection pump, which can prevent damage and deformation.

[0017]

In order to solve the problem] was to achieve the above purpose
Therefore, the jig for fixing the cam shaft according to the present invention is a pump casing.
And a cam shaft supported by the pump casing and rotationally driven by the crank shaft of the engine, and the cam shaft that rotates integrally with the cam shaft and locks the outer peripheral portion of the cam shaft at a predetermined rotational position. A rotary member having a portion, the pump casing is provided so as to be movable along the rotation direction of the rotary member, and has an insertion hole opening on the axis thereof toward the outer peripheral portion of the rotary member, and one end of the pump a cylindrical guide member which is guided to the outside of the casing, is capable inserted removed into the insertion hole of the guide member, forms a detent cam shaft thereof inserting tip caught by the disengageably to the locking portion a fixed member, screwed to the lead end of the outward of the guide member, for clamping the pump casing the guide member at any position along the rotational direction of the rotary member And the locking member, collected by the lock member
The end that covers the fixing member so that it can be removed.
A cap having a surface, is interposed between the end surface and the fixing member of the cap, a first spring for pressing always locking portion the fixing member, the fuel injection pump with
Used.

Then, this jig is replaced with the above fixing member.
Then, it is removably inserted into the insertion hole, and the insertion tip
An engaging portion that is removably hooked to the engaging portion of the rotating member
With lock pin and move this lock pin in the axial direction
A jig that supports as much as possible and also allows rotation in the axial direction.
How to project the body and the lock pin from the jig body
And a second spring that biases the jig body in the direction
Remove the cap and insert the fixing member.
When the lock member is pulled out from the through hole,
Removably mated to rotate the locking member
It is characterized by having a fitting portion for .

[0019]

In this structure, in order to fix the cam shaft at an appropriate rotational position, first the crank shaft or the cam shaft is rotated.
Adjust the cam shaft to an appropriate rotational position by
It Next, the cap and the first spring are removed, and the fixing member is pulled out from the insertion hole of the guide member. And this fixed
Is inserted a locking pin jig into the insertion hole instead of the member, it fitted a fitting portion of the jig body to the locking member, by rotating the jig body, loosening the locking member. Then, since the guide member can move in the rotation direction of the rotating member, the guide member is moved so that the engaging portion of the tip of the lock pin and the engaging portion of the rotating member are aligned, and the position of the guide member is changed. adjust. Locking pin which is inserted into the guide member, because it is biased in a direction to protrude from the jig body by a second spring, the guide member
When the engaging portion of the lock pin and the engaging portion of the lock pin coincide with each other by the movement of, the engaging portion of the lock pin is automatically caught by the engaging portion, and the position of the guide member is determined via the lock pin. . Once the position of the guide member is determined, the jig
The lock member is tightened through the main body to fix the guide member to the pump casing.

Next, the fitting portion of the jig body is removed from the lock member, and the lock pin is pulled out from the insertion hole.
Remove the jig. In this state, since the locking portion of the rotating member is located on the extension line of the insertion hole of the guide member, the previously pulled out fixing member is inserted into this insertion hole, and the tip thereof is hooked on the locking portion. Finally, the lock member is covered with the cap, and the first spring is again interposed between the cap and the fixing member to bias the fixing member toward the rotating member. By this urging, the fixing member is held in a state of being caught in the notch, and the cam shaft is fixed at a predetermined rotation position.

Therefore, if such a jig is used,
The fixing member for finally fixing the camshaft is inserted into the insertion hole after the position of the guide member is determined, so there is no need to tighten the lock member with the fixing member passing through the insertion hole. Becomes

Further, according to the jig having the above structure, since the biasing force of the second spring always acts on the lock pin, the lock pin does not rattle when loosening or tightening the lock member. .

In addition, even if the position of the engaging portion varies due to a processing error or the like, or if there is some rattling when the engaging portion of the jig body is engaged with the lock member, the lock pin Is held in a state of being caught by the locking portion, and is prevented from being detached from the locking portion. At the same time, since the lock pin and the jig body can rotate relative to each other in the axial direction, when the jig body is rotated to loosen or tighten the lock member, the rotational force is applied to the locking portion through the lock pin. It will not be transmitted. Therefore, no excessive force is applied to the lock pin or the locking portion, and the lock pin is prevented from being disengaged, and the position of the guide member can be accurately determined.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
It will be described based on the following. However, in this first embodiment, the basic structure of the fixing device for the camshaft is the same as that described with reference to FIG. 8. Therefore, the same components as those in FIG. The description is omitted.

In FIG. 1, the jig for fixing the cam shaft indicated by reference numeral 31 has a cylindrical jig body 32. The lock nut 17 can be removed from one end of the jig body 32.
A hexagonal fitting recess 33 is formed so that it can be fitted with a power . At the end of the jig body 32 opposite to the fitting recess 33, a head portion 34 is coaxially projected. The head portion 34 is for hooking a tool such as a spanner, and is formed in a hexagonal shape as shown in FIG. Inside the head portion 34, a through hole 35 that opens to the end surface of the head portion 34 is formed. The open end of this through hole 35 is
It is closed by the gu 39. The bottom of the through hole 35 is connected to the fitting recess 33 through a communication hole 36 having a diameter smaller than that of the through hole 35.

A lock pin 37 having a rod shape is removably inserted into the through hole 35. Lock pin 3
Outer diameter of 7 are either the same diameter as the fixing member 18, or is formed slightly smaller diameter. The lock pin 37 penetrates the communication hole 36 so as to be slidable in the axial direction and the direction around the axis, and is projected from the fitting recess 33 to the outside of the jig body 32. The protruding end of the outward of the locking pin 37, engaging
A tapered locking projection 37a is formed as a mating portion, and the locking projection 37a is adapted to be detachably hooked in the notch 6 of the flange 5. At the end of the lock pin 37 opposite to the locking projection 37a,
A flange-shaped spring seat 38 is formed. Between the spring seat 38 and the plug 39, <br/> compression coil spring 40 as a second spring is interposed. The compression coil spring 40 constantly urges the lock pin 37 in a direction in which it projects from the jig body 32 . Due to this urging , the spring seat 38 is caught on the bottom of the through hole 35 to prevent the lock pin 37 from coming off. Next, a procedure for fixing the camshaft 3 at an appropriate rotational position using the jig 31 having such a configuration will be described.

First, the crankshaft or camshaft 3 of the engine
Is manually turned to set the cam shaft 3 at an appropriate rotational position, so that the notch 6 faces the opening 7 of the pump casing 1. In this state, the cap 20 shown in FIG. 8 is removed to expose the lock nut 17, and the fixing member 18 together with the compression coil spring 21 is pulled out from the guide member 12.
Next, as shown in FIG.
Is inserted into the insertion hole 13 of the guide member 12 through the extension portion 17a of the lock nut 17, and the jig body 3
The second fitting recess 33 is fitted into the lock nut 17. Then, the lock nut 17 is loosened by rotating the jig body 32. Then, the guide member 12 can move in the rotation direction of the flange portion 5 within the opening range of the guide hole 10, so that the locking convex portion 37a of the lock pin 37 and the notch 6 of the flange portion 5 are aligned with each other. The guide member 12 is moved to adjust the position of the guide member 12.
The lock pin 37 inserted into the guide member 12 is constantly urged by the compression coil spring 40 in a direction projecting from the jig body 32. Therefore, at the time of adjusting the position of the guide member 12, the tip of the lock pin 37 is adjusted. Locking protrusion 37a
, But is in sliding contact with the outer periphery of the flange portion 5, and when the locking convex portion 37a matches the notch 6, the locking convex portion 37a is automatically caught in the notch 6. Therefore, the position of the guide member 12 is determined via the lock pin 37. After the position of the guide member 12 is determined, the jig body 32 is rotated in the opposite direction to tighten the lock nut 17 to fix the guide member 12 to the housing 8.

Next, the fitting recess 33 of the jig body 32 is removed from the lock nut 17, the lock pin 37 is pulled out from the insertion hole 13 of the guide member 12, and the jig 31 is removed. At this time, the insertion hole 13 of the guide member 12 and the notch 6 are aligned on the same straight line by the lock pin 37. Therefore, as shown in FIG. , And the engaging projection 18a at the tip thereof is hooked in the notch 6. Then, finally, the compression coil spring 21 is inserted into the extension portion 17a of the lock nut 17 to abut on the spring receiver 19, and
The cap 20 is screwed into the housing 8, and the compression coil spring 21 is interposed between the end surface 20 a of the cap 20 and the spring receiver 19. As a result, the fixing member 18 receives the biasing force of the compression coil spring 21, so that the locking projection 1
8a is retained in a state of being caught in the notch 6, and the cam shaft 3 is fixed at an appropriate rotation position.

According to such an embodiment of the present invention, the fixing member 1 for finally fixing the cam shaft 3 at an appropriate rotational position.
Since 8 is inserted into the insertion hole 13 of the guide member 12 after the position of the guide member 12 is determined, it is not necessary to tighten the lock nut 17 with the fixing member 18 inserted in the insertion hole 13. . Therefore, the fixing member 18 does not rattle as in the conventional case, and the fixing member 18 does not
Can be prevented from being damaged or deformed. Therefore,
It is possible to accurately fix the cam shaft 3 at an appropriate rotational position.

Since the lock pin 37 of the jig 31 inserted into the insertion hole 13 is constantly urged by the compression coil spring 40 in the direction of protruding from the jig body 32, the jig body 32 is rotated. When the lock nut 17 is loosened or tightened, the lock pin 37 does not rattle, and the lock pin 37 is securely held in the state of being caught in the notch 6.

Moreover, even if the position of the notch 6 is slightly displaced due to a processing error or the like, or some rattling occurs when the jig 31 is mounted, the locking projection 3 of the lock pin 37 is generated.
7a is forcibly pushed into the notch 6, and the lock pin 37 does not come off from the notch 6. At the same time, the lock pin 37 is supported so as to be rotatable relative to the jig body 32 in the axial direction.
When the lock nut 17 is loosened or tightened by turning 2, the rotational force of the jig body 32 is not transmitted to the notch 6 through the lock pin 37.

From the above, the lock pin 37 is not disengaged from the notch 6 or an unreasonable force is applied to the lock pin 37 or the notch 6, and the position of the guide member 12 is adjusted to the notch 6. Can be accurately determined. The present invention is not limited to the first embodiment described above, and FIGS. 6 and 7 show a second embodiment of the present invention.

In the second embodiment, the lock nut 51 for tightening the guide member 12 is formed in a cylindrical shape.
On the outer peripheral surface of the lock nut 51, three fitting grooves 52 extending in the axial direction are formed at equal intervals in the circumferential direction, and these fitting grooves 52 have an arc-shaped cross section. Further, the fitting concave portion 53 of the jig main body 32 into which the lock nut 51 is detachably fitted is formed in a circular cross section, and is fitted into the fitting groove 52 inside the fitting concave portion 53. Three detent pins 54 are provided. Non-rotating pin 5
4 are arranged at equal intervals in the circumferential direction of the fitting concave portion 53, and the arrangement intervals of these detent pins 54 match the arrangement intervals of the fitting groove 52. Non-rotating pin 54
Are held in pin holes 55 on the bottom surface of the fitting recess 53, and a part of the peripheral surface of these rotation stopping pins 54 is embedded in the inner peripheral surface of the fitting recess 53.

Therefore, when the fitting concave portion 53 is fitted into the lock nut 51, the detent pin 54 fits into the fitting groove 52 and prevents relative rotation between the lock nut 51 and the jig body 32. It is like this.

In the case of this embodiment , the outside of the flange portion 5 is
A locking projection 57 is provided on the peripheral surface as a locking portion used when the cam shaft 3 is held at an appropriate rotational position . This
A locking recess 58 as an engaging portion is formed at the tip of the lock pin 37 that faces the outer peripheral surface of the flange portion 5 of the.
I have. The locking projection 57 can be disengaged from the locking recess 58.
It is designed to fit in. For this reason, in this embodiment, the concave-convex relationship of the engaging portion between the flange portion 5 and the lock pin 37 is opposite to that in the first embodiment.

Also in the second embodiment having such a configuration,
The lock nut 51 can be rotated by the jig body 32 while the lock pin 37 is hooked on the flange portion 5 of the cam shaft 3, and the guide member 1 for the housing 8 can be rotated.
2 can be positioned with high accuracy.

[0037]

According to the present invention described in detail above, the fixing member for finally fixing the cam shaft at an appropriate rotational position is provided in the insertion hole of the guide member after the position of the guide member is determined by the lock pin. Since the fixing member is inserted into the insertion hole, the work of tightening the lock member with the fixing member inserted in the insertion hole is unnecessary. Therefore, since the fixing member does not rattle,
The fixing member is not damaged or deformed, and the cam shaft can be fixed at an appropriate rotational position with high accuracy.

Further, even when the jig body is rotated to loosen or tighten the lock member, the lock pin is held in a state of being caught by the locking portion without rattling, and the position of the locking portion is caused by a processing error or the like. Even if there is some misalignment or there is some rattling when the jig body is attached to the lock member, the tip of the lock pin is forcibly engaged with the locking part by the urging force of the second spring. To be done. Moreover, since the rotational force of the jig body is not transmitted to the locking portion through the lock pin, the lock pin does not come off the locking portion, and no unreasonable force is applied to the locking pin and the locking portion. The position of the guide member can be accurately determined according to the locking portion.

[Brief description of drawings]

FIG. 1 is a sectional view showing a state in which a jig of a first embodiment of the present invention is attached to a fixing device of a fuel injection pump.

FIG. 2 is a sectional view taken along the line AA of FIG. 1;

FIG. 3 is a sectional view of a jig for fixing a cam shaft.

FIG. 4 is a front view of the jig seen from the direction of the line B in FIG.

FIG. 5 is a sectional view showing a state in which a fixing member is inserted into a guide member positioned by a jig.

FIG. 6 is a sectional view showing a jig of a second embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a state where a fitting recess of a jig is fitted into a lock nut.

FIG. 8 is a cross-sectional view of an apparatus for fixing the camshaft in a proper rotational position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pump casing 3 ... Cam shaft 5 ... Rotating member (flange part) 6, 57 ... Locking part (notch, locking protrusion) 12 ... Guide member 13 ... Insertion hole 17,51... Lock member (lock nut) 18 ... Fixing member 20 ... Cap20a ... end face  21 ... First spring (compression coil spring) 31 ... Jig 32 ... Jig body 33,53… Mating part (fitting recess) 37… Lock pin37a, 58 ... Engaging part (locking projection, locking recess)  39 ... Second spring (compression coil spring)

Claims (1)

(57) [Scope of utility model registration request] 1. A pump casing, and an engine crank supported by the pump casing.
A cam shaft that is rotationally driven by the shaft and the cam shaft that rotates together with the cam shaft, and the above-mentioned cam shaft on the outer peripheral part
Rotating Part Having Locking Part for Positioning at Rotational Position
And the pump casing along the direction of rotation of the rotating member.
It is movably installed on the axis of the rotating member.
It has an insertion hole that opens toward the
Cylindrical guide member led out of the pump casing
And can be taken out through the insertion hole of this guide memberToInserted,
The insertion tip of the
A fixing member that serves as a rotation stopper for the shaft, and is screwed into the outward guide end of the guide member,thisMoth
Id memberthe aboveAt any position along the rotating direction of the rotating member
Locking member for tightening and fixing to the pump casing
And this lock memberRemovably cover the fixing member
A cap having an end face facing the end, The end face of this cap And the fixing member,
the aboveA first spring that constantly presses the fixing member toward the locking portion
And a jig used for a fuel injection pump including:Replaceable with the fixing member and insertable into the insertion hole.
The insertion tip can be engaged and disengaged with the locking part of the rotating member.
A lock pin having an engaging portion that is hooked on ,This lock pin can be moved in the axial direction, and it can be rotated around the axis.
A jig body that supports rotatably in any direction, Energize the lock pin in the direction to project from the jig body.
And a second spring that The jig body has the cap removed and
When the fixing member is pulled out from the insertion hole,
This lock member is detachably fitted to the lock member.
Must have a fitting part that rotates Fuel characterized by
A jig for fixing the cam shaft of an injection pump.