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Giant LP122A Series manual

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Table of contents for the manual

  • Page 1

    Models LP122A Series/LP123/LP255 Triplex Ceramic Plunger Pump Operating Instructions/ Repair and Service Manual For Models: LP122A LP122A-3100 LP122A-4000 LP123 LP255 Contents: Installation Instructions: page 2 Pump Specifications: page 3-4 Exploded View: page 5 Parts List: page 6 Kit List/Torque Specifications: page 7 Repair Instructions: pages 8-[...]

  • Page 2

    2 NOTE: Contact Giant Industries for Service School Information. Phone: (419)-531-4600 INST ALLA TION 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 uniqu[...]

  • Page 3

    LP12 2A SE RI E S/LP1 23 PU LL EY SELECTION AN D H ORSEPO WER R EQU IR EME N TS GP M PUM P PULLEY MO T O R PULLEY R PM 600 PSI 800 PSI 1000 PS I 1300 PS I 2000 P SI * 22. 3 12. 75" 3.95" 500 9.6 12. 7 15.9 20. 7 31.9 24. 7 12. 75" 4.35" 555 10. 6 14.1 17. 6 22.9 35. 3 28. 5 12. 75" 4.95" 640 12. 2 16.3 20. 4 26.5 40. 7[...]

  • Page 4

    L P2 55 PU LLEY SELECT ION A N D H O RSEPOWER R EQ UIREMENTS PUM P PULLEY MO T O R PULLEY R PM GPM 1000 PS I 1500 PS I 2000 PS I 2200 PS I 12. 75" 3.95" 500 13 9.3 13. 9 18. 6 20. 4 12. 75" 4.35" 640 16. 6 11. 9 17. 8 23. 7 26. 1 12. 75" 4.95" 750 19. 5 13. 9 20. 9 27. 9 30. 6 12. 75" 5.35" 805 20. 9 14. 9 22[...]

  • Page 5

    5 Exploded V iew - LP122A Series/LP123/LP255[...]

  • Page 6

    6 ITEM PART NO. DESCRIPTION QTY. 1 07759 Crankcase 1 2 13000 Oil Filler Plug 1 4 06085 Crankcase Cover 1 5 07104 O-Ring 1 6 07186 Oil Sight Glass W/Gasket 1 8 06086 Oil Dipstick 1 9 01009 O-Ring 1 10 01010 Screw, (A, B, C, E) 4 10 08093 Screw, (D) 4 11 01011 Spring Washer, (A, B, C) 5 11 08094 Spring Washer, (D) 5 12 07109 Oil Drain Plug, (A, B, C,[...]

  • Page 7

    7 LP122A SERIES/LP123/LP255 PUMP REP AIR KITS V alve Assembly Kit LP122A. LP123, LP122A-4000, LP255 #09136 Item Part # Description Qty . 46A 07751 Valve Assembly, Complete 3 48A 12055 O-Ring 3 Plunger Packing Kit # 09477 (LP122A, LP123, LP122A-4000) (for pumps manufatured after 4/98) Item Part # Description Qty . 35A 07740 O-ring 3 36 13415 V - Sle[...]

  • Page 8

    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. To disassemble the valve, screw the bolt into the[...]

  • Page 9

    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 curing of new loc-tite. Giant recommends cleaning the t[...]

  • Page 10

    10 12. Lubricate weep seal (36). Place, weep seal (36), and pressure ring (36A) into the seal sleeve (35). Assemble the o-ring (35A and 35B for LP255 only) onto seal sleeve and lubricate. 14. Press seal sleeve assembly into the manifold and seat firmly. Put the support ring (41) on plunger with v-side facing the manifold. 1 5 . Place entire manifol[...]

  • Page 11

    11[...]

  • Page 12

    GIANT INDUSTRIES LIMITED WARRANTY Giant Industries, Inc. pumps and accessories are warranted by the manufacturer to be free from defects in workmanship and material as follows: 1. For portable pressure washers and self-service car wash applications, the discharge manifolds will never fail, period. If they ever fail, we will replace them free of cha[...]