background image

2

INSTALLATION INSTRUCTIONS

between the pump and the work area to protect

the pump from pressure spikes in the event of a

blockage or the use of a shut-off gun.

4.  Reverse rotation may be safely achieved by

following a few guidelines available upon request

from Giant Industries, Inc.  Required horsepower

for system operation can be obtained from the

charts on pages 3 and 6.

5.  Before beginning operation of your pumping

system, remember:  Check that the crankcase

and seal areas have been properly lubricated per

recommended schedules.  Do not run the pump

dry for extended periods of time.  Cavitation will

result in severe damage.  Always remember to

check that all plumbing valves are open and that

pumped media can flow freely to the inlet of the

pump.

NOTE: An anti-sieze material must be

applied to the engine cranckshaft to ensure

trouble free disassembly of the pump.

IMPORTANT OPERATING CONDITIONS

Failure to comply with any of these conditions invalidates the warranty.

3.  Acids, alkalines, or abrasive fluids cannot be

pumped unless approval in writing is obtained

before operation from Giant Industries, Inc.

4.  Run the pump dry approximately 10 seconds

to drain the water before exposure to freezing

temperatures.

1.  Crankcase oil should be changed after the

first 50 hours of operation. Then at regular

intervals of 500 hours or less depending on

operating conditions.

Use Giant synthetic oil

2.  Pump operation must not exceed rated

pressure, volume, or RPM.  A pressure relief

device must be installed in the discharge of the

system.

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 installa-

tion.  If you have unique requirements,

please contact Giant Industries, Inc. or your

local distributor for assistance.

1.  The pump should be installed flat on a base to

a maximum of a 15 degree angle of inclination to

ensure optimum lubrication.

2.  The inlet to the pump should be sized for the

flow rate of the pump with no unnecessary

restrictions that can cause cavitation.  Teflon

tape should be used to seal all joints.  If pumps

are to be operated at temperatures in excess of

80

0

   F, it is important to insure a positive head to

the pump to prevent cavitation.

3.  The discharge plumbing from the pump

should be properly sized to the flow rate to

prevent line pressure loss to the work area.  It is

essential to provide a safety bypass valve

Finally, remember that high pressure operation in a pump system has many advantages.  But, if it is used carelessly

and without regard to its potential hazard, it can cause serious injury.

NOTE:  Contact Giant Industries for Service School Information.  Phone: (419)-531-4600

Summary of Contents for HR2527A

Page 1: ...odels HR2527A HR3025 HR3030 Pumps Contents InstallationInstructions page 2 Pump Specifications pages 3 5 Exploded View page 6 Parts List page 7 Kits Torgue Specs page 8 ToubleShooting page 9 RepairIns...

Page 2: ...urs of operation Then at regular intervals of 500 hours or less depending on operatingconditions Use Giant synthetic oil 2 Pump operation must not exceed rated pressure volume or RPM A pressure relief...

Page 3: ...11 7 lbs 12 7 lbs Width 6 9 16 Height 7 25 32 Swash Plate Bore 3 4 x 3 16 Keyway Valve Type Polyamide Plastic 1 A 25 PSIG minimum inlet pressure is required HORSEPOWER RATINGS The rating shown are th...

Page 4: ...PSIG minimum inlet pressure is required HORSEPOWER RATINGS The rating shown are the power requirements for the pump Gas engine power outputs must be approximately twice the pump power requirements sh...

Page 5: ...ght 11 4 lbs Width 6 7 16 Height 10 1 4 Swash Plate Bore 1 x3 16 Keyway Valve Type Polyamide Plastic 1 A 25 PSIG minimum inlet pressure is required HORSEPOWER RATINGS The rating shown are the power re...

Page 6: ...6 HR2527A HR3025 HR3030 EXPLODED VIEW...

Page 7: ...l 3 16 06317 Spacer Ring 3 18 07374 Valve Spring 6 19 06295 Valve Cone Discharge 3 19A 06267 Valve Cone Inlet 3 20 06315 V Sleeve 3 22 06290 Pressure Ring 3 28 06424 Manifold 1 34 07379 Manifold Plug...

Page 8: ...O Ring Adjusting Screw 2 48 12031 0002 Teflon Back Up Ring 2 49 06227 8mmBall 1 56 12007 O Ring 2 62 12326 O Ring 1 66 07935A By Pass Seat 1 GX and HR Pump Part Numbering System For example a GXV2525...

Page 9: ...uum Inletpressuretoohigh Wrong Grade of oil Improper amount of oil in crankcase REMEDY Replacepackingseals Replacespring Replacenozzle Cleanvalveassembly Cleanstrainer Repair Replacehose Clean Reset a...

Page 10: ...ly 50 56 47 and 59 Unscrew the adjusting screw 59 from the adjusting screw plug 50 6 Next remove the three manifold stud nuts 39 with a 17mm wrench Remove the suction flange 37 and flange o ring 38 In...

Page 11: ...th a light film of oil before reassembly This step will ensure proper fit at the same time protecting the pump s nonmetal parts elastomers from cutting and scoring 9 Remove the valve cones 19A valve s...

Page 12: ...ding the specifications set forth in the Operations Manuals provided by Giant Industries Inc Liability under this warranty is on all non wear parts and limited to the replacement or repair of those pr...

Reviews: