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DISASSEMBLY
t
Push in
pinion
0,5 to 2,0 mm
(0.020 to 0.079 in.)
Figure 7
Connections for measuring pinion
clearance
t
Starter
Tachometer
Figure 8
Connections for testing no-load
characteristics
Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
Battery
(12 volts) Starter
Switch
Ammeter
Battery
(12 volts)
DISASSEMBLY
9
ELECTRICAL SYSTEM
9.1
Starter
9.1.1 Testing before disassembly
1.
Clearance between pinion and housing (pinion
clearance)
1)
Connect the starter to a 12 volt battery as
shown in the illustration to cause the pinion to
shift into cranking position and remain there.
CAUTION
Due to the amount of current being passed through
the solenoid series winding, this test must be made
within 10 seconds.
2)
Push the pinion toward the commutator end
by hand to measure its free movement (pinion
clearance).
3)
The pinion clearance must be 0.5 to 2.0 mm
(0.020 to 0.079 in.). If the clearance is out of
this range, make an adjustment to it by adding
or removing the packings on the magnetic
switch. Adding the packings will decrease the
clearance.
2.
No-load characteristics
1)
Connect the starter to a 12 volt battery with an
ammeter capable of indicating several
hundred amperes as shown in the illustration.
2)
Close the switch to make sure the pinion shifts
into cranking position properly and the starter
runs at speeds higher than is specified. If the
current draw and/or operating speed is out of
the standard, disassemble the starter for
inspection and repairs.
CAUTION
•
The size of wires used for this test must be as
large as possible. Tighten the terminals securely.
•
This starter has a reduction gear. Do not confuse
gear noise with some abnormal noise else.
•
When measuring the starter speed at the end of
the pinion, be ready for accidental shifting of the
pinion.
ENGLISH
ELECTRICAL SYSTEM
33 / 195
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Troubleshooting
