Giant GP7122 - Manuals - manualsarea.com

Page 2 - INSTALLATION INSTRUCTIONS

2 INSTALLATION INSTRUCTIONS Installation of the Giant Industries, Inc., pump is not a complicated procedure, but there are some basic steps common to all pumps. The following information is to be considered as a general outline for installation. If you have unique requirements, please contact Giant ...

Page 3 - Specifications Model GP7122; Positive inlet pressures are recommended!; GP7122 HORSEPOWER REQUIREMENTS

90 85 80 75 70 0 2900 5800 8700 11,600 Pressure (PSI) Decibels 750 RPM 500 RPM 1400 = hp Volume ........................................................................................................ Up to 9.9 GPM Discharge Pressure .....................................................................

Page 4 - Must be on inlet connection

Exploded View - GP7122 4 Must be on inlet connection side. See note on pg. 2.

Page 6 - Inner Hexagon Screw; GP7122 TORQUE SPECIFICATIONS; Discharge Valve Assembly Kit #09553

Position Item# Description Torque Amount 24 13406 Inner Hexagon Screw 30 (ft.-lbs.) 36 13138 Plunger 33 (ft.-lbs.) 49A 13160 Nut 103 (ft.-lbs.) 58C 07702 Hexagon Screw 155 (ft.-lbs.) GP7122 TORQUE SPECIFICATIONS Inlet Valve Assembly Kit #09552 Item Part # Description Qty. 51A 12056 Support Ring 1 51...

Page 7 - TO CHECK VALVES

NOTE: Always take time to lubricate all metal and non-metal parts with a light film of oil before reassembling. This step will help ensure proper fit, at the same time protecting the pump non-metal parts (elastomers) from cutting and scoring. GP7122 REPAIR INSTRUCTIONS 1) Lossen and remove screws (5...

Page 8 - TO CHECK SEALS

7) When reassembling: The inlet valve seat (51C) is 1mm smaller in diameter than the discharge valve seat (52C). Inlet valve seats aremarked "S" and always have to be installed first. Discharge valveseats are marked "P" and are always to be installed on top of inletvalve. Plugs (58) ...

Page 9 - Examine seals for signs of wear or cavi-

14) Remove circlip ring (48) from seal sleeve (38). Re-move spacer disc (47) ands e a l r i n g ( 4 6 ) f r o m s e a ls l e e v e . R e p l a c e w o r n o rdamaged parts. CAUTION: Don't loosen the 3 plunger (36) before the valve casing has been removed otherwise the plunger (36) could hit against ...

Page 10 - con rod halves as far into the crosshead guide as possible.

10 GP7122 REPAIR INSTRUCTIONS TO ASSEMBLE VALVE CASING 18. Check O-rings (39A) and support rings (39B) on sealcase (39). Clean surfaces ofseal sleeves (38) in crankcase(1) and sealing surfaces ofvalve casing (50). Insert sealsleeve with plunger intocrankcase guide. Turn crank-shaft to (22) until plu...

Page 12 - GIANT INDUSTRIES LIMITED WARRANTY

GIANT INDUSTRIES LIMITED WARRANTY Giant Industries, Inc. pumps and accessories are warranted by the manufacturer to be free fromdefects in workmanship and material as follows: 1. For portable pressure washers and car wash applications, the discharge manifolds will never fail, period. If they ever fa...