Operator's Manual

Checking Hydraulic Lines and
Hoses
Check hydraulic lines and hoses daily for leaks, kinked
lines, loose mounting supports, wear, loose fittings,
weather deterioration and chemical deterioration. Make
all necessary repairs before operating.
Hydraulic System Test Ports
The test ports are used to test the hydraulic circuits.
Check all pressures when engine is at full speed and
hydraulic oil is at normal operating temperature.
Contact your local Toro distributor for assistance.
1. Traction Forward and Reverse have a normal relief
setting of approximately 41,000 kPa (6000 psi).
2. Normal charge pressure is 689– 965 kPa (100–140
psi).
Figure 50
1. Traction forward circuit
2. Traction reverse circuit
3. Cutting unit counterbalance normal setting is
approximately 4,100–4,400 kPa (600-650 psi) @
high idle and when oil is warm.
4. Lift circuit relief pressure is approximately
17,900–19,300 kPa (2600–2800 psi) when oil is
warm.
5. The steering circuit has a normal relief setting of
approximately 8,274 kPa (1200 psi) @ high idle
and warm oil.
6. Wing deck cutting unit Counterbalance normal
setting is approximately 2400–27—(350–400 psi )
@ high idle and when oil is warm.
Figure 51
1. Charge pressure
Figure 52
1. Counterbalance/Lift circuit
2. Steering circuit
32
Keep body and hands away from pin-hole leaks or
nozzles that eject high pressure hydraulic fluid. Use
cardboard or paper to find hydraulic leaks. Hydraulic
fluid escaping under pressure can penetrate skin and
cause injury. Fluid accidentally injected into the skin
must be surgically removed within a few hours by a
doctor familiar with this form of injury or gangrene
may result.
WARNING
1