Triplex Ceramic Plunger Pump Operating Instructions/ Repair and Service Manual Model LP200, LP250 & LP250W-MT Updated 5/02 Contents: Installation Instructions: LP200 Specifications: Exploded View / Kits: Parts List: LP250/LP250W-MT Specifications: Repair Instructions: Torque Specifications: Pump Mounting Selection Guide: Trouble Shooting: Recommended Spare Parts List: Dimensions: Warranty Information: page 2 page 3 page 4 page 5 page 6 page 7-9 page 9 page9 page 10 page 10 page 11 back page
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 Industries, Inc. or your local distributor for assistance. 4. Use of a dampener is necessary to minimize pulsation at drive elements, plumbing, connections, and other system areas.
Specifications Model LP200 Volume ........................................................................................................ Up to19.0 GPM Discharge Pressure .................................................................................... Up to 2900 PSI Inlet Pressure .............................................................................................. Up to 90 PSI Speed ..........................................................................................................
Exploded View - LP200, LP250 & LP250W-MT 4
LP200, LP250 & LP250W-MT PARTS LIST ITEM 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 20 20A 20B 21 22 23 24 24A 24B 25 28 29A 29B 29B PART 07759 13000 06085 07104 07186 07187 06086 01009 01010 01011 07109 07182 07111 07112 07113 07114 07116 07117 13001 07118 13242 13243 13340 13227 13278 13341 13232 07125 13220 13022 29C 29D 30 31 35 35 07131 07755 07789 07133 13196 13024 36 13228 DESCRIPTION Crankcase Oil filler Plug Assy.
Specifications Model LP250, LP250W-MT Volume ........................................................................................................ Up to 26.0 GPM Discharge Pressure .................................................................................... Up to 2200 PSI Inlet Pressure .............................................................................................. Up to 90 PSI Speed ..................................................................................................
LP200, LP250 & LP250W-MT - REPAIR INSTRUCTIONS 44A 1. With a 30mm wrench, remove the (3) plugs (48). 46A 44B 45 2. Remove the compression spring (45) & o-rings (44A & 44B-LP250W-MT only). 46B 3. Remove the complete valve assembly (46) with valve pullers. 46D 5. Loosen the 8 nuts (49A) with a 19mm wrench. Tap the back of the manifold (43) with a rubber mallet to dislodge and slide off the studs (49). 4.
LP200, LP250 & LP250W-MT - REPAIR INSTRUCTIONS 38 29B 29D 29C 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 no glue gets between the plunger pipe (29B) and the centering sleeve (29A).
To 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. IMPORTANT! Connecting rods (24) are marked for identification. Do not twist connecting rod halves. Connecting rod is to be reinstalled in the same position on shaft journals.
PUMP SYSTEM MALFUNCTION MALFUNCTION CAUSE REMEDY The Pressure and/or the Delivery Drops Worn packing seals Broken valve spring Belt slippage Worn or Damaged nozzle Fouled discharge valve Fouled inlet strainer Worn or Damaged hose Worn or Plugged relief valve on pump Cavitation Unloader Replace packing seals Replace spring Tighten or Replace belt Replace nozzle Clean valve assembly Clean strainer Repair/Replace hose Clean, Reset, and Replace worn parts Check suction lines on inlet of pump for restrictio
LP200, LP250 & LP250W-MT DIMENSIONS 11
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.
