Section E - Hydraulics
E - 30 E - 30
9803-9450-2
Fault Finding
Hydrostatic Transmission
Before carrying out any problem solving or any tests on the
machine, make sure that the hydraulic system is filled to
the correct level with the correct grade of hydraulic oil (see
Fluids, Lubricants and Capacities) and that the system
is at the correct working temperature ((50 °C, 122 °F).
PROBLEM CAUSE
No drive in any direction 1, 2, 4, 5, 10, 16, 22, 23, 27
No drive in either forward or reverse 6, 8, 11, 18
No spin turn either left or right 3, 4, 5, 11, 16, 18, 21
No drive on one side 5, 6, 9, 11, 18, 21, 22
Machine will not travel in straight line 3, 8, 9, 11, 16, 18, 19, 20, 21
No brakes 13, 14, 15, 17
Brakes on all the time 12, 13, 14, 15, 17
No tractive effort 4, 5, 6
Low tractive effort at high engine speed 28
Machine creeps in neutral 7
Motor noisy (pulsing) 24
Motor noisy (continuous) 25
Transmission circuit overheating 26
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