ENGLISH

SERVICE MANUAL

DRIVE SYSTEM

TROUBLESHOOTING

The machine stability is reduced

Possible causes:

1.The tires are not correctly infl ated (check tire pressure).

The rear axle is noisy

Possible causes:

1.The wheel bearings are worn (replace).

The machine power is reduced

Possible causes:

1.The drive system motors are worn (replace).

2.The drive pedal is faulty (replace).

3.The drive system pump power decreases (check the oil pressure at the drive system pump).

The machine does not move

Possible causes:

1.The drive system pump deactivation screw for machine pushing/towing is unscrewed (screw down).

2.There are oil leaks from the hydraulic system (repair).

3.The drive system pump is broken (replace).

4.The drive system motor is broken (replace).

The machine moves even if the drive pedal is released

Possible causes:

1.The drive pedal is misadjusted (adjust).

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33015500(3)2008-02

RS 501

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Nilfisk-Advance America RS 501 service manual Machine stability is reduced, Rear axle is noisy, Machine power is reduced