Toro Groundsmaster 7210, Service Manual

Page: 187 / 342

Disassembling the Lift Cylinder (continued)
IMPORTANT
When you clamp the hydraulic cylinder in a vise, clamp the clevis
only to prevent damage.
2. Mount the lift cylinder in a vise. Use a vise equipped with soft jaws.
3. Carefully remove the collar with a pipe wrench.
4. Remove the plugs from the ports. Carefully twist and pull the shaft and
remove the shaft with head and piston.
IMPORTANT
Clamping the vise jaws against the shaft surface could damage the
shaft. When securing the shaft in a vise, clamp the shaft clevis only.
5. Mount the shaft correctly in a vise by clamping on the clevis of the shaft.
Remove the nut and piston from the shaft. Slide the head off the shaft.
6. Remove the piston seal and O-ring from the piston, and remove the O-ring,
back-up ring, rod seal, and dust seal from the head.
Assembling the Lift Cylinder
1. Ensure that all the parts are clean before assembly.
2. Put a coating of clean hydraulic fluid on new O-rings, piston seal, rod seal,
back-up ring, and dust seal, and do the following steps:
A. Install the piston seal and O-ring to the piston.
B. Install the dust seal, O-ring, back-up ring, and dust seal to the head.
IMPORTANT
Clamping the vise jaws against the shaft surface could damage the
shaft. When securing the shaft in a vise, clamp the shaft clevis only.
3. Mount the shaft correctly in a vise by clamping on the clevis of the shaft,
and do the following steps:
A. Put a coating of clean hydraulic fluid on the shaft.
B. Slide the head onto the shaft. Install the rod seal onto the shaft and into
the head.
Note: Ensure that you do not damage the seals.
C. Install the piston onto the shaft and attach the piston with the nut.
D. Remove the shaft from the vise.
IMPORTANT
When you clamp the cylinder head of the cylinder in a vise, clamp
the clevis end of the cylinder head only to prevent damage.
4. Mount the cylinder head in a vise.
Groundsmaster 7210 Page 4–127 Hydraulic System: Service and Repairs
16222SL Rev C