Toro Pro Sweep 07066 Service Manual page 34

Problem
Sweeper will not lift or lifts slowly.
Hydraulic System
Possible Cause
Control module has gone to time--out due to inactivity of remote
transmitter.
Hydraulic hose(s) to tow vehicle are not connected (brush motor
and offset cylinder affected as well).
Tow vehicle hydraulics are not engaged to Pro Sweep (brush motor
and offset cylinder affected as well).
Hydraulic oil level in tow vehicle reservoir is low.
Lift cylinder is binding.
Sweeper frame components are binding.
Check valve fitting on lift cylinder is faulty.
An electrical problem exists that prevents control manifold solenoid
coil SV3 from being energized (see Troubleshooting in Chapter 4 --
Electrical System).
Control manifold solenoid cartridge SV3 is faulty.
Control manifold solenoid cartridge SV2 is faulty.
Control manifold relief valve RV is leaking or faulty.
Control manifold cartridge EC is faulty.
Hydraulic system on tow vehicle is malfunctioning (brush motor and
offset cylinder affected as well).
An electrical problem exists that prevents operation of control mod-
ule or remote transmitter (see Troubleshooting in Chapter 4 -- Elec-
trical System).
Lift cylinder is damaged.
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