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Giant LP 122A manual

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Table of contents for the manual

  • Page 1

    Model s LP122A Series/LP123 Triplex Ceramic Plunger Pump Operating Instructions/ Repair and Service Manual Updated 6/00 For Models LP122A LP122A-3100 LP122A-4000 LP123 Contents: Installation Instructions: page 2 Pump Specifications: page 3 Exploded View: page 4 Parts List: page 5 Kit List/Torque Specifications: page 6 Trouble Shooting: page 7 Repai[...]

  • 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

    3 L P1 22 A SER IES /LP1 23 PULLEY SELECTI O N AND H O RSEPOW ER R EQU IR EMEN TS GP M PU MP PU LLE Y MO T OR PULLEY R PM 6 00 PS I 800 PSI 1000 P SI 1300 PSI 200 0 PS I 22. 3 1 2.75" 3. 95" 500 9. 6 12. 7 15. 9 20.7 31.9 24. 7 1 2.75" 4. 35" 555 10.6 14.1 17. 6 22.9 35.3 28. 5 1 2.75" 4. 95" 640 12.2 16.3 20. 4 26.5 4[...]

  • Page 4

    4 Exploded View - LP122A Series/LP123 LP123 LP122A-3100 31 (LP122A and LP122A-4000) *LP122A-3100 Only! * *[...]

  • Page 5

    5 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 1 0 01010 Screw, (A, B, C) 4 1 0 08093 Screw, (D) 4 1 1 01011 Spring Washer, (A, B, C) 5 1 1 08094 Spring Washer, (D) 5 1 2 07109 Oil Drain Plug, (A, B, [...]

  • Page 6

    6 Plunger Packing Kit # 09135 (for pumps manufatured before 4/98) Qty . Part # Description 3 07740 O-ring 6 07741 V -Sleeve, W eep 6 07745 V -Sleeve 3 07653 O-Ring LP122A SERIES/LP123 PUMP REP AIR KITS V alve Assembly Kit LP122A. LP123, LP122A-4000 #09136 Qty . Part # Description 3 07751 Valve Assembly, Complete 3 12055 O-Ring Plunger Packing Kit #[...]

  • Page 7

    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 nozzle Fouled discharge valve Fouled inlet strainer [...]

  • 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 t[...]

  • Page 9

    9 1 1 . 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[...]

  • Page 10

    10 1 2 . Lubricate weep seal (36). Place, weep seal (36), and pressure ring (36A) into the seal sleeve (35). Assemble the o-ring (35A) onto seal sleeve and lubricate. 1 4 . 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 manifold/seal sleeve assem[...]

  • Page 11

    11 LP122A/LP122A-3100/LP123 DIMENSIONS (mm) LP122A-4000 DIMENSIONS (mm)[...]

  • 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[...]