Page 2 - INSTALLATION INSTRUCTIONS; Crankcase oil should be changed after the; IMPORTANT OPERATING CONDITIONS
2 INSTALLATION INSTRUCTIONS Installation of the Giant Industries, Inc., pumpis not a complicated procedure, but there aresome basic steps common to all pumps. Thefollowing information is to be considered as ageneral outline for installation. If you haveunique requirements, please contact GiantIndust...
Page 3 - Specifications; PULLEY INFORMATION
3 MP4130HT(C) PULLEY SELECTION AND HORSEPOWER REQUIREMENTS PUMP PULLEY MOTOR PULLEY RPM GPM GPH 300 PSI 600 PSI 725 PSI 900 PSI 1200 PSI 9.75" 2.50" 400 5.6 335 1.2 2.3 2.8 3.5 4.7 9.75" 3.00" 500 7.0 419 1.5 2.9 3.5 4.4 5.8 9.75" 3.60" 600 8.4 503 1.8 3.5 4.2 5.3 7.0 9.75...
Page 5 - Seal Repair Kit
5 ITEM PART# DESCRIPTION QTY. 36 07267 Snap Ring 3 39 07271 Pressure Ring 6 40 06137 V-Sleeve 9 41 07273 Support Ring 6 42 07353 Tension Spring 3 42A 06103 Tension Plug, M42 x 1.5 3 42B 07354 O-Ring 3 43 06138 Valve Casing 1 44 07280 Valve Seat 6 44A 07281 O-Ring 6 45 07282 Valve Plate 6 46 07283 Va...
Page 6 - Disassembly sequence of the GIANT MP4130HT(C) Series Pumps
6 1. With a 27mm wrench,remove the three dischargeplugs (#48) and three inletplugs (#42A) from themanifold (#43). 2. Inspect the plug o-rings(#48A and #42B) andreplace as necessary. 3. Using a valve puller (avail- able from Snap-On-Tools),remove the valve assembly(#44 - #47). REPAIR INSTRUCTION - MP...
Page 7 - Contact Giant Industries for service school
7 8. From the back of themanifold (#43), remove thepacking assembly (#'s 42,41, 40, and 39) by tappingassembly out from theback to the front. 9. Turn the manifold (#43) over and remove the rear v-sleeve snapring (#36). Remove rear pressure ring (#39) , rear v-sleeve (#40) and rear support ring (#41)...
Page 8 - Reassembly sequence; Make certain that
8 Gear End Disassembly Note: Make certain that the plungers (29B) have been removed before starting the following sequence. 12. Make sure the oil is drained from the pump before removing the crankcase cover (#4). Remove all screws (#10). Inspect the crankcase cover o-ring (#5) for damage and replace...
Page 10 - Position
10 38. Reassemble the inlet valve assembly in the reverse or-der of step #7. Make cer-tain all the components arepress fit together and that thes p r i n g r e t a i n e r ( # 5 4 ) i sslightly counter sunk in thevalve housing (#52). Greasethe o-ring (#53) and install iton to the valve housing. Re-i...
Page 11 - PUMP SYSTEM MALFUNCTION
11 PUMP SYSTEM MALFUNCTION MALFUNCTION The Pressure and/orthe Delivery Drops Water in crankcase Noisy Operation Rough/PulsatingOperation withPressure Drop Pressure Drop at Gun Excessive Leakage High CrankcaseTemperature CAUSE Worn packing sealsBroken valve springBelt slippageWorn or Damaged nozzleFo...
Page 12 - GIANT INDUSTRIES LIMITED WARRANTY
MP4130HT(C) DIMENSIONS (mm) GIANT INDUSTRIES LIMITED WARRANTY Giant Industries, Inc. pumps and accessories are warranted by the manufacturer to be free fromdefects in workmanship and material as follows: 1. For portable pressure washers and car wash applications, the discharge manifoldswill never fa...