Mitsubishi Heavy Industries L2, Service Manual

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123 / 155 Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
STARTER
ENGLISH
ELECTRICAL SYSTEM
32.2 Inspection (assembly)
If any abnormality is assumed by the following tests,
adjust the starter or disassemble and repair it.
32.2.1 Pinion gap inspection
1. C terminal of battery (12 V)to starter
terminal “S” and – terminal to starter body, and the
pinion will protrude and stop.
2. Lightly push the pinion back and measure the
return stroke (called pinion gap).
3. If the pinion gap is not within the standard range
(0.5 to 2.0 mm [0.0197 to 0.0787 in.]), adjust it by
increasing or decreasing the number of packings
on the magnetic switch. The gap is decreased as
the number of packings increases.
32.2.2 No-load test
1. Connect the ammeter, voltmeter and battery to the
starter as illustrated.
2. When the switch is closed, the pinion must
protrude and the starter must run smoothly (at
3000 rpm or more). If the current or starter speed
is out of specification, disassemble the starter and
repair it.
32.2.3 Magnetic switch
Perform the following tests. If any defect is found,
replace the magnetic switch assembly.
1. Disconnect wire from terminal “M”.
Figure 120 Inspecting pinion gap
Terminal S
0.5 to 2.0 mm
[0.0197 to 0.0787 in.]
Push back
Lightly
CAUTION
Never apply battery voltage for over 10 seconds
continuously.
Figure 121 No-load test
Battery
Ammeter
Starter
Volt meter
CAUTION
a. Use wires as thick as possible for wiring and
tighten every terminal securely.
b. This is a solenoid shift type starter which makes
a rotating sound larger than that of a direct-drive
type starter.
c. When detecting starter rotation at the pinion tip,
pay attention to protrusion of the pinion.