• Insolubles 1.5% wt.max
• Total base number 60% less than new oil value
• Nitration 30 abs/cm max
• Oxidation 30 abs/cm max
• Water 0.2% vol max
• Iron - Fe less than 20 ppm
• Copper - Cu less than 40 ppm
Note:
Perkins Engines Stafford must agree to the
maintenance schedule.
i02430590
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.
i09157662
Engine Speed/Timing Sensor -
Clean/Inspect
Ensure that all power is disconnected to the engine
before performing these procedures.
Table 19
Required Tools
Tool
Part Number
Part Name
Qty
A
SE253
Crankshaft Turning Tool
1
Speed Sensor
Illustration 49
g01234089
Typical example
1.
Remove the connection (3). Loosen the locknut
(1).
2.
Remove the sensor (2). Clean any debris from the
sensor.
3.
Install tooling (A).
SEBU8430-02
67