Toro Sand Pro 3040 Service Manual page 163

Disassembling the Lift Valve (continued)
Assembling the Lift Valve
Sand Pro ® 3040 and 5040
20251SL Rev A
7. Carefully push and twist the spool from the valve body.
8. Being careful not to scratch the valve bore finish, remove the O-rings (spool
seals) from the inside bore of the valve body.
9. Inspect all the components for wear, paying special attention to the spool.
Signs of wear on one side of the spool may indicate a bent spool. Inspect the
spool for run-out (straightness) and replace it if necessary.
Refer to Figure 61 for this procedure.
1. Clean all components thoroughly before assembly. Remove any residual
silicone sealer from the valve body and cap.
2. Use new O-rings when assembling. Coat all O-rings and the spool with clean
hydraulic fluid before installation into the valve body.
3. Install the spool into the valve body before inserting the cam pins, check
balls, springs and hex cap plugs. Assemble the components in reverse order
of disassembly.
Note: The spool retaining ring is a stamped ring and must be installed with
the sharp edge away from the spacer.
4. Apply a thin film of silicone sealer to the undercut of the valve body before
installing the cap (item 16).
Page 5–93 Hydraulic System: Service and Repairs