Releasing Pressure From The Hydraulic System - Toro ProLine H800 Service Manual

Releasing Pressure from the Hydraulic System

Releasing the Hydraulic Pressure from the Traction Circuit
Releasing the Hydraulic Pressure from the Lift Circuit
Releasing the Hydraulic Pressure from the Steering Circuit
Releasing the Hydraulic Pressure from the Hopper Lift and Tilt Circuit
Releasing the Hydraulic Pressure from the Height Of Cut Circuit
ProLine H800
19241SL Rev A
Follow the steps below to release all pressure in the hydraulic system prior to
starting any service procedures. There must be no pressure in the hydraulic
system.
Note: If you park the machine on an inclined or sloped surface, the pressure
in the traction circuit will not release.
1. Park the machine on a level surface.
2. Lower the cutting deck.
3. Turn the key switch to the O
4. Move the traction pedal in both the forward and reverse direction for 5 to
10 times.
1. Turn the key switch to the O
lower the cutting deck to the ground.
2. Turn the key switch to the O
3. After lowering the cutting deck, ensure that the lift cylinders do not support
the cutting deck.
1. Park the machine on a level surface.
2. Lower the cutting deck.
3. Turn the key switch to the O
4. After the engine has come to a complete stop, rotate the steering wheel to
full left and back to full right for 3 times to dissipate the hydraulic pressure in
the system.
1. Park the machine on a level surface.
2. Turn the key switch to the O
is in raised position, fully lower the hopper assembly.
3. Turn the key switch to the O
4. After lowering the hopper assembly, ensure that the lift and tilt hydraulic
cylinders do not support the hopper assembly. Operate the hopper lift and tilt
control levers in both directions for 5 to 10 times.
1. Park the machine on a level surface.
2. Turn the key switch to the O
lower the cutting deck to the ground.
3. Operate the height of cut switch in both directions for 5 to 10 times.
4. Turn the key switch to the O
position and allow the engine to stop.
FF
position (do not start the engine) and fully
N
position.
FF
position and allow the engine to stop.
FF
position (do not start the engine). If the hopper
N
position.
FF
position (do not start the engine) and fully
N
position.
FF
Page 5–5 Hydraulic System: General Information