Giant LP 122A - Manuals

7 PUMP SYSTEM MALFUNCTION MALFUNCTION The Pressure and/or the Delivery Drops Water in crankcase Noisy Operation Rough/Pulsating Operation with Pressure Drop Pressure Drop at Gun Excessive Leakage High Crankcase Temperature CAUSE Worn packing seals Broken valve spring Belt slippage Worn or Damaged no...

8 LP122A Series/LP123 - Repair Instructions 1. With a 30mm wrench, re- move the six (6) plugs (48) from the valve casing (43). Inspect the o-rings (48A) and replace if necessary. Remove the complete valve assembly (46A) by thread- ing a 12mm bolt into the spring retainer and pulling straight out. 2....

9 11. If previously disassembled thoroughly clean all exposed surfaces on the spacer (29E) and all exposed threads on the plunger bolt (29C) and the steel plunger base (25). Threads MUST be free of old loc-tite and any other material such as oil, grease, etc. This is necessary to ensure proper curin...

GIANT INDUSTRIES LIMITED WARRANTY Giant Industries, Inc. pumps and accessories are warranted by the manufacturer to be free from defects inworkmanship and material as follows: 1. For portable pressure washers and self-service car wash applications, the discharge manifolds will never fail, period. If...