Engine Valve Lash - Inspect/Adjust; Fan Drive Pulley - Check; Engine Protective Devices - Check - Perkins 4006-23 Operation And Maintenance Manual

68
Maintenance Section

Engine Protective Devices - Check

Illustration 58
"Min" mark. "Max" mark.
(Y) (X)
5. Remove the engine oil level gauge (3) to check the
oil level. Maintain the oil level between the "MIN"
and "MAX" marks on the engine oil level gauge.
Engine Protective Devices -
Check
Alarms and shutoffs must function properly. Alarms
provide timely warning to the operator. Shutoffs help
to prevent damage to the engine. It is impossible to
determine if the engine protective devices are in
good working order during normal operation.
Malfunctions must be simulated in order to test the
engine protective devices.
A calibration check of the engine protective devices
will ensure that the alarms and shutoffs activate at
the setpoints. Ensure that the engine protective
devices are functioning properly.
NOTICE
During testing, abnormal operating conditions must
be simulated.
The tests must be performed correctly in order to pre-
vent possible damage to the engine.
To prevent damage to the engine, only authorized
service personnel or your Perkins dealer should
perform the tests.
Visual Inspection
Visually check the condition of all gauges, sensors
and wiring. Look for wiring and components that are
loose, broken, or damaged. Damaged wiring or
components should be repaired or replaced
immediately.
Engine Valve Lash - Inspect/
Adjust
(Valves and Valve Bridges)
g01165836
Only qualified service personel should perform this
maintenance. Refer to the Service Manual or your au-
thorized Perkins dealer or your Perkins distributor for
the complete valve lash adjustment procedure.
Operation of Perkins engines with incorrect valve
i02461963
lash can reduce engine efficiency, and also reduce
engine component life.
Ensure that the engine can not be started while
this maintenance is being performed. To help pre-
vent possible injury, do not use the starting motor
to turn the flywheel.
Hot engine components can cause burns. Allow
additional time for the engine to cool before
measuring/adjusting valve lash clearance.
Note: The valve bridges must be equalized before
the valve lash is adjusted.
Refer to Systems Operation, Testing and Adjusting,
"Valve Lash - Adjust" for the correct procedure.

Fan Drive Pulley - Check

(4008-30 Engine Only)
S/N: SD81–Up
1. Isolate the electrical supply to the engine.
SEBU9077-01
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NOTICE
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