1.6.5.4 How to recognize an engine with hydraulic lash adjusters
IMPORTANT: Do not adjust the valves of an
engine, which has hydraulic lash adjusters!
An engine with hydraulic lash adjusters has a
cylinder block, which has drillings for oil ways for
each hydraulic lash adjuster. If the cylinder block
has oil ways, there are screw plugs on the oil
ways in the cylinder block.
The screw plugs are in the same locations, where
the hydraulic lash adjusters or valve tappets are.
For example, one location is above the engine
plate.
(1) Screw plug
NOTE: The same cylinder block is used in some
engines, which do not have the hydraulic lash
adjusters.
GUID-D19C4F02-BB60-4F75-A73E-9224770F6F33-low.svg [Low]
Fig. 24
Procedure
1. Examine the cylinder block for screw plugs on oil ways.
Result
If the cylinder block has no screw plugs, the engine does not have hydraulic lash adjusters.
2. If the cylinder block has screw plugs, examine the screw head of the screw plug.
Result
If the screw head of the screw plug has two levels, the engine does not have hydraulic lash
adjusters.
GUID-6175EAB7-8664-4EDD-ADDC-86B358C52959-low.svg [Low]
Fig. 25 The screw head has two levels.
If the screw head of the screw plug is flat, the engine has hydraulic lash adjusters.
GUID-B2487765-E008-4158-878E-4F4B2A4F25F7-low.svg [Low]
Fig. 26 The screw head is flat.
1.6.6 Change fuel filters
Absolute cleanliness is required when servicing fuel system.
NOTE: Pre-filter and main-filter elements are delivered as a filter set. Single filter elements are not
available as spare parts. Set includes pre-filter water detector gasket and a disposable fuel filter wrench.
GUID-83FFFD66-C378-4F12-BBB7-6A1055F7CD94 [V2]
GUID-D15E8AA3-7AF9-46A8-B256-177610E6E188 [V4.1.2]
1. General
1-32 Rubber Track Tractor
79037272A
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