D
Group 177 Preventive Maintenance
27
Start Engine and Check of Starter Element
and Preheater
Starter Motor
Using an ammeter, test starter motor for maximum current
draw. Check service manual for specifications.
Inspect mounting for secureness and for possible cracks
around flanges.
Check wires for wear, fraying, and terminal tightness.
Make sure the wiring is properly routed and securely
clamped.
Volvo Engine Preheater
Inspect the Volvo engine preheater for correct function.
The ignition switch has a position in between the normal
run position and the start position that engages the
pre-heater. The engagement time is dependent on engine
coolant temperature:
Above 10
C (50 F) — engagement time: 0 seconds.
Between 10 to
0
15 C (50 to 4 F) — engagement
time: 25 ± 2 to 55 ± 2 seconds.
Below
0
15 C(4 F) — engagement time: 55 seconds.
Note: The preheat engages independent of the coolant
temperature.
57
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