Operation Manual

Table Of Contents
Job Card No.:
Engine:
Filing No.:
Lower Valve Drive
0178-11-10 1992
Inspection
Inspect accessible tappet rollers and cams. If wear is
found, inspect the other tappet rollers and cams. To
do this, remove injection pumps (job 07.04.01).
Job
Remove accessible covers (10) - Fig. 1 -. Turn engine
and check for perfect running of the rollers and that
the cams have a perfectly smooth surface. Especial-
ly critical defects are:
scaling and cracks
blue heat discoloration on the cams
If cams and rollers are found to be in perfect order,
refit covers (10), tightening fastening bolts as per
Section 3.5, item 28.
Reconditioning
Reconditioning is primarily required when rollers
have become defective or the valve drive is jamming.
Depending on the valve drive's location, it is
necessary to remove injection pump drive
(see Job Card 07.04.01 ).
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04.02.01 Page 1 of 3
S/BVM 628
Fig. 1
Job Cards:
- 01.04.01
- 01.09.01
- 07.04.01
Tools:
- Standard tools
- Lamp
- Prism
- Hard-wood block or aluminium plate
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