Toro Greensmaster 3120 Service Manual page 169

Removing the Rear Lift Cylinder
Installing the Rear Lift Cylinder
Greensmaster 3120
17230SL Rev C
1. Park the machine on a level surface. Lower the cutting units, stop the engine,
engage the parking brake and remove the key from the ignition switch.
2. Read and adhere to the information provided in
Removing and Installing the Hydraulic System Components (page
3. Label all hydraulic connections for proper assembly.
Before opening the hydraulic system, relieve the hydraulic system
pressure to avoid injury from pressurized hydraulic fluid; refer to
Relieving Pressure from the Hydraulic System (page
4. Disconnect the hydraulic hose assemblies from the hydraulic fittings. Allow
the hoses to drain into a suitable container. Cap and plug the hydraulic hoses
and fittings to prevent system contaminations.
5. Support the lift cylinder to prevent it from dropping.
A. Remove the cap screw, the flat washer and the lock nut from the pivot
pin (item 12 in
cylinder.
B. Remove the cotter pin from clevis pin (item
clevis pin from the lift cylinder and the lift arm.
C. Separate the hydraulic cylinder from the frame and the lift arm. Remove
the cylinder from the machine.
6. If hydraulic fittings are to be removed from the cylinder, mark the fitting
location and orientation to allow for correct assembly. Remove the fittings
and discard the O−rings.
Note: Inspect the threads and the sealing surfaces of the hydraulic fittings
and the hydraulic hoses prior to installation. Replace any damaged or worn
fittings or hoses.
1. Lubricate and fit new O-rings onto the cylinder fittings. Install the fittings
making sure that the fitting location and orientation is as noted during
removal. Tighten fittings as specified; refer to
(SAE Straight Thread O-Ring Fittings) (page
2. Position the lift cylinder to the machine.
3. Insert the pivot pin (item
lift cylinder. Secure the pin to the frame with the cap screw, the flat washer
and the lock nut.
4. Position the clevis of the lift cylinder to the lift arm. Secure the lift cylinder
clevis to the lift arm with the clevis pin (item
5. Remove the plugs and the caps from the hydraulic hoses and fittings. Using
the labels placed during removal, connect the hydraulic hoses to the cylinder
fittings. Tighten the connections as specified; refer to
Hoses and Tubes (O-Ring Face Seal) (page
6. Charge the hydraulic system; refer to
4–79).
CAUTION
Figure 75). Pull the pivot pin from the frame and the lift
12 in Figure 75) through the frame brackets and the
Charging the Hydraulic System (page
Page 4–123
General Precautions for
4–4).
6 in Figure 75). Slide the
Installing the Hydraulic Fittings
4–10).
6 in Figure 75) and the cotter pin.
Installing Hydraulic
4–8).
Hydraulic System: Service and Repairs
4–71).