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Table of contents for the manual
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Page 1
Model LP200, LP250 & LP250W - M T Triplex Ceramic Plunger Pump Operating Instructions/ Repair and Service Manual Updated 5/02 Contents: Installation Instructions: page 2 LP200 Specifications: page 3 Exploded View / Kits: page 4 Parts List: page 5 LP250/LP250W-MT Specifications: page 6 Repair Instructions: page 7-9 Torque Specifications: page 9 [...]
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Page 2
2 INST ALLA TION INSTRUCTIONS 4. Use of a dampener is necessary to minimize pulsation at drive elements, plumbing, connec- tions, and other system areas. The use of a dampener with Giant Industries, Inc. pumps is optional, although recommended by Giant Industries, Inc. to further reduce system pulsa- tion. Dampeners can also reduce the severity of [...]
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Page 3
3 V olume ........................................................................................................ U p to19.0 GPM Discharge Pressure .................................................................................... U p t o 2900 PSI Inlet Pressure ....................................................................................[...]
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Page 4
4 Exploded View - LP200, LP250 & LP250W-MT[...]
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Page 5
5 LP200, LP250 & LP250W-MT PARTS LIST LP200, LP250 & LP250W-MT REP AIR KITS ITEM PART DESCRIPTION QTY 1 07759 Crankcase 1 2 13000 Oil filler Plug Assy. 1 4 06085 Crankcase Cover 1 5 07104 O-ring, Crankcase Cover 1 6 07186 Oil Sight Glass 1 7 07187 Gasket for Sight Glass 1 8 06086 Oil Dipstick Assy 1 9 01009 O-Ring, Dipstick Assy. 1 10 01010[...]
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Page 6
6 Specifications Model LP250, LP250W-MT V olume ........................................................................................................ U p t o 26.0 GPM Discharge Pressure .................................................................................... U p t o 2200 PSI Inlet Pressure ............................................[...]
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Page 7
7 LP200, LP250 & LP250W- M T - REP AIR INSTRUCTIONS 1. With a 30mm wrench, remove the (3) plugs (48). 2. Remove the compression spring (45) & o-rings (44A & 44B-LP250W -MT only). 3. Remove the complete valve assembly (46) with valve pullers. 44A 44B 45 4. Loosen valve seats (46A) from spacer pipe (46D) by lightly hitting the valve plate[...]
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Page 8
8 38 8. Remove seal case (37) from valve casing (43) and inspect o-ring (38). 9. Check plunger surface (29B). If plunger pipe is worn out, loosen tension screws (29C) and pull off plunger pipe to the front. Clean front surface of plunger (25) thoroughly . Apply a thin coat of Loctite to the tension screw threads (29C). Note: Care must be taken that[...]
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Page 9
9 T o Dismantle Gear End After removing valve casing (43) and plunger pipe (29B), drain oil. Remove gear cover (4) and bearing cover (14). Loosen connecting rod screws (24A) and push the front of the connecting rod (24) forward as far as possible into the crosshead guide. IMPOR T ANT! Connecting rods (24) are marked for identification. Do not twist[...]
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Page 10
10 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[...]
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Page 11
11 LP200, LP250 & LP250W - M T DIMENSIONS[...]
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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 car wash applications, the discharge manifolds will never fail, period. If they ever fail, we will replace them free of charge. Our othe[...]