User's Manual

Troubleshooting
312484C 7
Troubleshooting
Service
Required Tools
• Set of allen wrenches
• Set of socket or box wrenches
• Adjustable wrench
• Torque wrench
• Spanner wrench
• O-ring pick
• 10-24 unc-2b tap
•Vise
• Shallow metal or plastic pan (approx. 12 x 20 in.)
• Repair Tool 189305 (see page 14)
• Thread lubricant
• Lithium-base grease
• Fresh Loctiter 242 thread sealant and Loctiter
Primer T or Perma-Locr 115 thread sealant and
Perma-Bondr Surface Conditioner I
• Chlorinated solvent
Problem Cause Solution
Hydraulic Motor stops running. Worn valve or valve balls (3); broken
valve spring (18).
Repair valve. See page 8.
Broken trip rod (17), spring (12) or
retainers (11).
Repair valve. See page 8.
Poor performance or reduced effi-
ciency.
Worn piston seals (5, 6, 7). Repair valve. See page 8.
Oil leaking around cylinder. Worn cylinder o-rings (2). Replace o-rings. See page 8.
Oil leaking around inlet or return tube
fittings.
Loose fittings or worn fitting o-rings
(31, 34, and 38).
Tighten nuts (27). See page 10.
Excessive oil in drain bottle, or bottle
needs frequent emptying.
Worn seals (2, 15, 14, and 49) in bot-
tom cylinder cap.
Replace seals. See page 8.