Troubleshooting - Toro Reelmaster 5500-D Service Manual

Troubleshooting

The charts that follow contain information to assist in
troubleshooting. There may possibly be more than one
cause for a machine malfunction.
Problem
Transmission operates in one direc-
tion only.
Traction pedal does not return to
neutral properly.
Transmission is jerky when starting.
Machine travels too far before stop-
ping when the traction pedal is re-
leased.
Transmission operates hot.
Traction power is lost or unit will not
operate in either direction.
No cutting units will operate.
Hydraulic System (Rev. C)
Refer to the Testing section of this Chapter for precau-
tions and specific test procedures.
Possible Cause
Traction control linkage is faulty.
Transmission charge check valve and/or system relief valve is de-
fective.
Incorrect charge check valve and/or system relief valve is installed
in the reverse port of the transmission.
Traction control linkage is faulty.
Traction stud (eccentric) is not in the rear quadrant to provide maxi-
mum spring tension.
Traction control linkage is faulty.
Charge check valve and/or system relief valve is faulty.
Traction linkage is out of adjustment.
Traction pedal does not return to neutral (restriction).
Engine RPM is too low.
Transmission reservoir oil level is too low.
Cooling system is not operating properly.
Oil cooler bypass relief valve is faulty.
Charge pressure is too low.
Transmission load is too large.
Traction pressure is too low.
Engine RPM is too low.
Drive shaft is disconnected or damaged.
Traction control linkage is damaged or disconnected.
Transmission reservoir oil level is too low.
Charge pressure is too low.
Traction pressure is too low.
Hydraulic filter is clogged.
Lower-mow/raise lever was improperly used.
Electrical problem exists (see Chapter 5 - Electrical System).
Gear pump or its coupler is damaged (Steering and lift circuits are
also affected).
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