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Yanmar 4JH4E - Page 126

Yanmar 4JH4E
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3. Troubleshooting
106
(IV) Difficulty changing into forward, neutral, and reverse
(V) Dragging
(VI) Abnormal lube oil pressure
No. Cause and effect Countermeasure
1 Damaged holding spring of pipe. Replace.
2 Foreign material in pipe system. Clean.
3 Oil leakage where there is remote control. Replenish oil and check. Replace seal.
4 Phase slippage. Repair link system.
No. Cause and effect Countermeasure
1 Not enough warp in steel plate. Replace.
2 Damaged holding spring of pipe. Replace.
3 Lube oil pressure is too high. Adjust lube oil adjustment valve.
4 Viscosity of lube oil is too high. Change oil.
No. Cause and effect Countermeasure
1 Oil leakage. Check and repair.
2 Clogged lube oil filter. Disassemble and clean.
3 Damaged or old lube oil adjustment valve spring. Replace.
4 Sticking of lube oil adjustment valve. Repair or replace.

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