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Working Card

Page 1 (3)

Inspection of Valve Roller Guides

508-01.00

 

Edition 01S

 

 

L23/30H

08028-0D/H5250/94.08.12

Safety precautions:

Stopped engine

Shut-off starting air □ Shut-off cooling water

Shut-off fuel oil

□ Shut-off cooling oil

Stopped lub. oil circul.

Description:

Dismounting. inspection and/or overhaul, and mounting of valve roller guides.

Inspection of roller guide housing.

Starting position:

Top cover for cylinder head and cover for fuel injection pump removed.

Related procedure:

 

Inspection of fuel injection pump

 

roller guide,

508-01.05

Control and adjusting of valve

 

clearance,

508-01.10

Man power:

 

 

 

Working time

:

2 hours

 

Capacity

:

1 man

 

Data:

 

 

 

Data for pressure and tolerance

(Page 500.35)

Data for torque moment

(Page 500.40)

Declaration of weight

(Page 500.45)

Special tools:

 

 

Plate no

Item no

Note

52006

261 20 – 120 Nm

Hand tools:

Ring and open end spanner, 19mm. Ring and open end spanner, 24mm. Socket spanner, 19 mm.

Socket spanner, 10 mm. Allen key, 3 mm.

Allen key, 10 mm. Ratchet spanner. Hammer.

Drift.

Replacement and wearing parts:

Plate no

Item no

Qty/

50801

185

4/cyl

50801

220

2/cyl

50801

232

1/cyl

96.03-ES0S

508-01.00

Inspection of Valve Roller Guides

Edition 01S

 

 

 

Working Card

Page 2 (3)

L23/30H

Dismounting of Roller Guide.

1)Turn the engine so that the roller, rests on the circular part of the cam.

2)Unscrew the nuts which secure the rocket arm brackets, and lift off the rocker arm with brackets.

3)Remove the push rods (1), see fig 1.

Fig 1.

4)Loosen the lock screw for the push rod protecting tube, see plate 50801, item 207, on the roller guide top cover and lift up and remove the protecting tube (2).

5)Dismount the screws (3) which secure the roller guide top cover, take off the cover, the spring (7) and lift out the roller guide (5).

Disconnect any pipes that may be in the way (lub. oil and fuel oil pipes).

6)If the roller guide housing is to be dismantled, the fuel injection pump and the fuel injection pump roller guide are to be dismounted, see working card 514-01.05 and a number af lubricating oil and fuel oil pipes are also to be disconnected.

The roller guide housing (6) cannot be dismantled with the roller guides fitted.

7)If the event of any marks or scores from seizure, these must be polished away.

8)Inspect the spherical stud for deformations (replace as necessary).

Examine the surface of the roller for marks and other deformations.

Make sure that there is free ply between the roller and the bush and the shaft pin, and replace the bush, if necessary.

Replacement of Roller, Bush and Shaft Pin.

9)Remove the lock screw which secures the roller guide shaft pin and push out the shaft pin.

The roller, shaft pin, and bush can now be replaced as required.

10)Blow through the lubricating ducts in roller guide and roller guide housing, and clean the lubricating grooves.

Mounting of Roller Guide.

11)When assembling the parts, which is carried out in the reverse order to the above care must be exercised not to damage the o-rings when mounting the protecting tube.

12)Adjusting of valve clearance, see working card 508-01.10.

96.03-ES0S

08028-0D/H5250/94.08.12

Working Card

Page 3 (3)

Inspection of Valve Roller Guides

508-01.00

 

Edition 01S

 

 

L23/30H

13)When the roller guide housing(6) to be replaced into a new part, special care should be done at the mounting checking the contact surface between each cam & roller to give a smooth rolling motion. especially for the alignment of center line between cam shaft and roller guide housing.

08028-0D/H5250/94.08.12

96.03-ES0S

1999.11.16-S.H.B(No. 13) note to be added by S S H1

514-01.05

Working Card

Page 1 (2)

Inspection of Fuel Injection Pump Roller Guide

508-01.05

 

Edition 01S

 

 

L23/30H

08028-0D/H5250/94.08.12

Safety precautions:

Stopped engine

Shut-off starting air □ Shut-off cooling water

Shut-off fuel oil

Shut-off cooling oil

Stopped lub. oil circul.

Description:

Dismounting. inspection and/or overhaul, and mounting of roller guide for fuel injection pump.

Starting position:

Cover for fuel injection pump removed. Fuel injection pump has been removed,

Related procedure:

Adjustment and/or check of max.

combustion pressure,

514-01.20

Man power:

 

 

 

Working time

:

1/2 hour

 

Capacity

:

1 man

 

Data:

 

 

 

Data for pressure and tolerance

(Page

 

 

 

500.35)

Data for torque moment

(Page

 

 

 

500.40)

Declaration of weight

(Page

 

 

 

500.45)

Special tools:

Plate no Item no

Note

Hand tools:

Allen key, 3 mm.

Hammer.

Drift.

Replacement and wearing parts:

Plate no Item no

Qty/

96.03-ES0S

508-01.05

Inspection of Fuel Injection Pump Roller Guide

Edition 01S

 

 

 

Working Card

Page 2 (2)

L23/30H

Dismounting of Roller Guide.

1)Remove the support ring (1) and spring (2) and take up the roller guide (3), see fig 1.

Fig 1.

Inspection of Roller Guide.

2)If the event of any marks or scores from seizures, these must be polished away.

3)Inspect he spherical stud for deformations (replace as necessary).

Examine the surface of the roller for marks and other deformations.

Make sure that there is free ply between the roller and the bush and the shaft pin, and replace the bush if necessary.

Replacement of Roller, Bush and Shaft Pin.

4)Remove the lock screw which secures the roller guide shaft pin anti push out the shaft pin.

The roller, shaft pin, and bush can now be replaced as required.

5)Blow through the lubricating ducts in roller guide and roller guide housing, and clean the lubricating grooves.

Mounting of Roller Guide.

6)When assembling the parts which is carried out in the reverse order.

7)For adaption of the thrust piece of the roller guide, see working card 514-01.20.

8)When the roller guide housing(6) to be replaced into a new part, special care should be done at the mounting checking the contact surface between each cam & roller to give a smooth rolling motion, especially for the alignment of center line between cam shaft and roller guide housing.

08028-0D/H5250/94.08.12

96.03-ES0S

1999.11.16-S.H.B(No. 8) note to be added by S S H1

Working Card

Control and Adjusting of Valve Clearance

508-01.10

Page 1 (3)

Edition 01H

 

 

 

 

 

 

 

L23/30H

08028-0D/H5250/94.08.12

Safety precautions:

Stopped engine

Shut-off starting air

Shut-off cooling water

Shut-off fuel oil

Shut-off cooling oil

Stopped lub. oil circul.

Description:

Control and/or adjusting of valve clearance.

Starting position:

Cover for rocker arm are removed.

All indicator valves open.

Related procedure:

Manpower:

 

 

 

Working time

:

1/4

hour

Capacity

:

1

man

Data:

 

 

 

Data for pressure and tolerance

(Page 500.35)

Data for torque moment

(Page 500.40)

Declaration of weight

(Page 500.45)

Special tools:

 

 

Plate no

Item no.

Note

52008

022

Exhaust

52008

010

Inlet

52010

011

 

Hand tols:

Ring and open end spanner, 24 mm. Big screw driver.

Replacement and wearing parts:

Plate no

Item no

Qty/

See also plate 50502.

96.38 - ES0S

508-01.10

Control and Adjusting of Valve Clearance

Working Card

Edition 01H

Page 2 (3)

 

 

 

 

 

L23/30H

 

 

Adjusting of Inlet Valve Clearance.

1)Turn the engine so that the roller, rests on the circular part of the cam, i.e. the inlet valves and the exhaust valves are closed.

2)Loosen the adjustment screws on valve bridge and rocker arm, see fig 1.

Fig. 1.

3)Clearance between valve bridge and valve spindle, see page 500.40.

4)Place the feeler gauge marked with "correct" 0,50 mm above the valve spindle nearest to the rocker arm bracket, see fig 1.

5)Adjust the clearance between valve bridge and valve spindle by means of the adjustment screw on the rocker arm (above the push rod) and tighten the lock nut.

Fig 2.

The feeler gauge is to remain in this position when adjusting the clearance of the other valve.

6)Place another feeler gauge, at the same size 0,50 mm above the other valve spindle, see fig 2.

7)Adjust the clearance between valve bridge and valve spindle by means of the adjusment screw on the valve bridge, and tighten the lock nut, see fig 2.

8)Check that the clearance is correct simultaneously at both valve spindles.

Adjusting af Exhaust Valve Clearance.

08028-0D/H5250/94.08.12

96.38 - ES0S

Working Card

Control and Adjusting of Valve Clearance

508-01.10

Page 3 (3)

Edition 01H

 

 

 

 

 

 

 

L23/30H

9)Carry out adjustment in the same way as described for the inlet valves, but using the feeler gauge for exhaust valve clearance 0,90 mm.

10)The feeler gauges for checking the clearance have two gauges which are marked "incorrect" and "correct", the latter to be used when adjusting the valve clearance, see fig 3.

After tightening up the counter nuts on rocker arms and valves bridge, be sure that the feeler gauges marked "correct" can be inserted into the two clearances simultaneously as where it must not be possible to insert the gauges marked "incorrect".

Fig 3.

08028-0D/H5250/94.08.12

96.38 - ES0S

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