Troubleshooting - Toro ProPass 200 Service Manual

Troubleshooting

For effective troubleshooting and repairs, there must be
a good understanding of the hydraulic circuits and com-
ponents used on this machine (see Hydraulic Schemat-
ics in this chapter).
Problem
No ProPass functions operate.
Rear option does not function (machines with standard
hydraulics).
Rear option does not function (machines with
electronic hydraulics).
NOTE: Check wireless remote LCD display and base
unit LED's for help in troubleshooting.
Hydraulic System
Possible Causes
Hydraulic lines are not connected to tow vehicle
(machines that use hydraulic flow from tow vehicle).
Hydraulic lines to tow vehicle are not connected
correctly (machines that use hydraulic flow from tow
vehicle).
Hydraulic reservoir level is low.
Electrical power to ProPass hydraulic components is
not available (e.g. power harness not connected to tow
vehicle, tow vehicle key not ON, fuse is faulty, vehicle
battery is discharged).
Tow vehicle has a hydraulic problem (machines that
use hydraulic flow from tow vehicle).
Hydraulic power pack relief valve is stuck open or
faulty (machines that have hydraulic power pack).
Hydraulic power pack gear pump is faulty (machines
that have hydraulic power pack).
An electrical problem exists (see Chapter 4 -- Electrical
System).
Rear option hydraulic lines are not connected.
Rear option control valve setting is not adjusted
properly.
Rear option solenoid valve is faulty.
An electrical problem exists (see Chapter 4 -- Electrical
System).
Rear option hydraulic motor(s) are faulty.
Rear option hydraulic lines are not connected.
Wireless remote settings are incorrect.
Control manifold proportional flow valve (PV1) is faulty.
An electrical problem exists (see Chapter 4 -- Electrical
System).
Rear option hydraulic motor(s) are faulty.
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