Model LP121HT Updated 3/98 Triplex Ceramic Plunger Pump Operating Instructions/ Repair and Service Manual Contents: Installation Instructions: Pump Specifications: Exploded View: Parts List / Kits: Torque Specifications: Operating Instructions: Repair Instructions: Dimensions: Warranty Information: page 2 page 3 page 4 page 5 page 5 page 6 pages 7 back page back page
INSTALLATION INSTRUCTIONS 4. Use of a dampener is necessary to minimize pulsation at drive elements, plumbing, connections, 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 pulsation. Dampeners can also reduce the severity of pressure spikes that occur in systems using a shut-off gun. A dampener must be positioned downstream from the unloader. Installation of the Giant Industries, Inc.
Specifications LP121HT Pump Volume ........................................................................................................ Up to 17.6 GPM Discharge Pressure .................................................................................... Up to 1200 PSI Inlet Pressure .............................................................................................. Up to 90 PSI Speed ..........................................................................................................
EXPLODED VIEW - LP122A-3100 4
PARTS LIST - LP122A-3100 PUMP Item Part 1 07759 2 13000 4 06085 5 07104 6 07186 8 06086 9 01009 10 08093 11 08094 12 12137 13 07182 14 07111 15 07112 16 07113 17 08095 20 07116 20A 07117 20B 13001 21 07118 22 13242 23 13243 24 13340 25 13341 28 13232 29A 07735 29B 07736 29C 07737-0100 29D 07161-0100 29E 06618 Description Qty.
REPAIR INSTRUCTION - LP121HT PUMP To Check Valves Loosen valve plugs (48). Either with needle nose pliers or with a M12 screw, which can be threaded into the hole of the spring retainer (46D), take out discharge and inlet valve assemblies. Press onto the valve plate (46B) and twist to take apart the valve assembly. Check and replace worn parts. Tighten the plug to 107 ft.-lbs. To Check Seals and Plungers Loosen the eight nuts (49A) and take off the valve casing (43).
Supplementary Plant Lay-Out Instructions - LP121HT PUMP Pressure in Inlet Side The stipulated NPSHR is the minimum required pressure above the vapor pressure of the medium and is never to fall short of this figure. Temperature and vapor pressure of the medium, the geodetical height of the location, the flow rate and the loss of friction in the suction line, must all be taken into consideration. It may be necessary to install a booster pump (centrifugal) in the suction line.
LP121HT DIMENSIONS, INCHES (MM) 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.