9-040
TROUBLESHOOTING
2-5-2. Combination meter warning lamp or indicator lamp is abnormal
Reference Fig. : 2-5-1
Check point
Check/Cause
Action
1. Each Bulb
Check that none of lamp bulbs is burned out or has a
contact failure (charge warning lamp, engine oil pressure
warning lamp, hydraulic oil filter warning lamp and parking
brake indicator lamp).
Bulb is faulty or poorly connected.
•
•
Replace each bulb.
2. Lamp Check Relay
(R4)
(1) when starter switch is ON, measure voltage between
lamp check relay terminal 2 outlet wire LgB and chassis
ground.
Standard voltage : 12 V or more
(2) when starter switch is ON, measure voltage between
lamp check relay terminal 5 outlet wire B and chassis
ground.
Standard voltage : 12 V or more
(3) After starting engine, measure voltage between lamp
check relay terminal wires and chassis ground.
Lamp check relay terminal 2 inlet wire LgB and
chassis ground
Lamp check relay terminal 5 outlet wire B and chassis
ground
There is no electricity in normal condition.
If above item (1) is OK and item (2) is NG, lamp check
relay is faulty.
If above items (1) and (2) are OK and item (3) is NG,
alternator is faulty.
•
•
•
•
Repair or replace lamp
check relay (R4) or
alternator.
3. Combination Meter
(Lamp check)
(1) when starter switch is ON, measure voltage between
combination meter battery terminal wire No. 35 inlet
wire YW and ground terminal wire B.
Standard voltage : 12 V or more
(2) when starter switch is ON, check that parking brake
indicator lamp, hydraulic oil filter warning lamp, engine
oil pressure warning lamp and electrical charge warning
lamp illuminate and then go out after starting engine.
If above item (1) is OK and the item (2) is NG,
combination meter is faulty.
(NOTICE)
Since engine cannot start unless parking brake
switch is applied and F-R lever is “N”, parking brake
indicator lamp does not go out even after starting
engine.
•
•
Replace combination
meter.
4. Harness Connecting
Between Terminals
Measure resistance of harness connecting between
terminals.
Standard resistance : 10 Ω or less
If resistance is abnormal, harness is faulty.
•
•
Repair or replace
harness.
Содержание SV410-2
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Страница 23: ...SPECIFICATIONS ...
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Страница 41: ...ENGINE AND CONTROLS ...
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