Triplex
Plunger Pump
Operating Instructions/
Repair Instructions
Manual
Model
Consumer Pump
GXR Series
Horizontal/Vertical Pump
with built-in Regulator,
Thermal Relief Valve and
Siphon Injector
Contents:
Installation Instructions: page 2
Pump Specifications:
Exploded View/Kits:
Parts List:
page 3
page 4
page 5
MADE IN THE USA
Torque Specifications: page 5
Repair Instructions:
Dimensions:
Warranty Information:
pages 6-7
back page
back page
Updated 8/01
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Specifications
Model GXR Series
GXR2224..............................................................................................2.2 GPM @ 2400 PSI
GXR2424..............................................................................................2.4 GPM @ 2400 PSI
Maximum Inlet Pressure.......................................................................Up to 90 PSIG1
RPM......................................................................................................3450
Plunger Diameter..................................................................................16mm
Stroke GXR2224 ..................................................................................4.7mm (6.1 o angle)
Stroke GXR2424 ..................................................................................5.1mm (6.3 o angle)
Crankcase Oil Capacity ........................................................................4.7 fl. oz. (4.1 fl.oz. horizontal)
Temperature of Pumped Fluids ............................................................Up to 80 oF
Inlet Port ...............................................................................................1/2" NPT
Discharge Ports.....................................................................................3/8" NPT
Shaft Rotation .......................................................................................Either Direction2
Weight...................................................................................................9 lbs.
Width ....................................................................................................8.325"
Height ...................................................................................................6.45"
Swash Plate Bore (Horizontal) .............................................................3/4" x 3/16" Keyway
Swash Plate Bore (Vertical) ..................................................................7/8" x 3/16" Keyway
Valve Type ............................................................................................Polyamide Plastic
1
A 25 PSIG minimum inlet pressure is required.
The pump itself can be driven in either direction of rotation; however, the cooling fan
2
on TEFC motors must always be positioned so that the cooling air is drawn from the
non-drive end of the motor towards the pump.
HORSEPOWER RATINGS:
The rating shown are the power
requirements for the pump. Gas
engine power outputs must be
GXR2224 ELECTRIC HORSEPOWER
REQUIREMENTS
RPM GPM 1000 PSI 1500 PSI 2000 PSI 2500 PSI
3450 2.2
1.5
2.3
3.0
3.8
approximately twice the pump
power requirements shown above.
GXR2224 GAS ENGINE HORSEPOWER
REQUIREMENTS*
We recommend a 1.15 service factor
be specified when selecting an
electric motor as the power source.
To compute specific pump horse-
power requirements, use the Follow-
ing formula:
RPM GPM 1000 PSI 1500 PSI 2000 PSI 2500 PSI
3450 2.2
2.0
3.0
4.0
5.0
GXR2424 ELECTRIC HORSEPOWER
REQUIREMENTS
Electric HP = (GPM X PSI) / 1460
Gas HP = (GPM X PSI) / 1100
RPM GPM 1000PSI 1500PSI 2000PSI 2400 PSI
3450 2.4
1.6
2.5
3.3
3.9
GXR2424 GAS ENGINE HORSEPOWER
REQUIREMENTS*
* Engine power varies based on horizontal or
vertical orientation as well as by makes and
model from each manufacturer.
RPM GPM 1000PSI 1500PSI 2000PSI 2400 PSI
3450 2.4
2.2
3.3
4.4
5.2
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GXR SERIES EXPLODED VIEW
Plunger Packing Kit
Oil Seal Kit
# 09465
# 09468
Item
20
Part # Description
06290 Support Ring
06315 V-Sleeve
Qty.
3
3
Item
15
Part # Description
06316 Plunger Oil Seal 3
Qty.
21
Regulator Repair Kit
Valve Assembly Kit
# 09534
# 09466
Item
24
25
Part # Description
23507 O-Ring
06710 Seat
Qty.
1
1
1
1
Item
18
19
Part # Description
07374 Valve Spring
06267 Guided P-Valve
Qty.
6
3
3
26
06386 Ball
36
06295 Discharge Valve Cone
27
06385 O-Ring
28
30
06384 Plastic Poppet Valve
06410 O-Ring
1
1
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GXR SERIES PARTS LIST
ITEM#
Part#
Description
QTY. ITEM#
Part#
Description
O-Ring
O-Ring
Seat
6mm S.S. Ball
O-Ring
Plastic Poppet Valve
Spring
O-Ring
Cap
Manifold
Discharge Valve Cone
Triangle O-Ring
Suction Flange
Stud Bolt
Orifice, 1.8mm
Orifice, 2.1mm
QTY.
1
2
3
4
5
07805
06310*
06294
06300
06690**
Radial Shaft Seal
Adapting Flange
O-Ring
Rear Bearing
Wobble Plate 6.1 Degree 3/4"
(GXRH1114)
Wobble Plate 6.3 Degree 3/4"
(GXRH2424)
Wobble Plate 6.1 Degree 7/8"
(GXRV2224)
Wobble Plate 6.3 Degree 7/8"
(GXRV2424)
Shaft Ring
Front Bearing
Spring Disk
Plunger, 16mm
Plunger Spring
Socket Bolt
Gasket
Oil Drain Plug
Crankcase (GXRV)
Crankcase (GXRH)
Vent Cap (Horizontal Only)
Oil Seal
1
1
1
1
23
24
25
26
27
28
29
30
31
35
36
38
39
40
12007
23507
06710
06386
06385
06384
06382
06410
06392
06412
06295
07910A
06298
06302
3
1
1
1
1
1
1
1
1
1
3
1
1
4
1
1
1
5
5
5
06566**
06696+
06322+
1
1
1
3
3
3
6
1
1
1
1
1
3
3
6
3
3
3
3
5A
6
7
8
9
07882
06301
06289
06287
06288
06299
08192
06273
06282
06338
08083
06316
06292
07374
06267
06290
06315
06296
44A
44A
44A
06308
06339
1
1
06340
06312
07913
06303
23009
Orifice, 2.3mm
O-Ring in Nozzle
O-Ring
Injector Retainer
Spring
1
1
1
1
1
1
1
1
1
4
4
1
10
11
12
13
13
14
15
17
18
19
20
21
22
45
46
47
48
49
50
51
53
23010-0100 Ball
12516-0001 O-Ring
12517
23422A
07468
07467
06334
Hose Barb
Spacer
Valve Spring
Guided P-Valve
Pressure Ring
V-Sleeve, 16mm
Discharge Plug
Thermal Relief Valve
Locktooth Washer
Screws
54++
55++
56++
Mounting Flange "X" Style
++
09103 Gasoline Flange Kit
A = See pump numbering system page 7
* When ordering 06310, please order 17026, which includes 06300, 07805, and 06294.
** When ordering 06566, please order 17047 which includes 06566, 06301, and 07882.
** When ordering 06690, please order 17052 which includes 06690, 06301, and 07882.
+ When ordering 06322, please order 17027 which includes 06322, 06301, and 07882.
+ When ordering 06691, please order 17053 which includes 06691, 06301, and 07882.
GXR SERIES TORQUE SPECIFICATIONS
Position
Item#
06299
06302
Description
Socket Bolt
Stud Bolt
Torque Amount (ft.-lbs)
100 in.-lbs.
10
40
150 in.-lbs.
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REPAIR INSTRUCTION - GXR SERIES
1. With a 14mm socket wrench,
remove the three discharge
valve plugs (27). Inspect
the valve plug o-rings (23)
for wear, and replace as
necessary.
3. With a crescent wrench, re-
2. Remove the valve spring
(18) and valve cone (36)
from the manifold (35). In-
spect the parts for wear and
replace as necessary.
move the injector retainer
(47). Inspect the o-ring (46)
for wear and replace as nec-
essary.
10. Tap the back of the manifold
(35) with a rubber mallet to
dislodge, and slide off the
plungers. (8). Take note of
the position of the discharge
port so as to place the mani-
fold in the same position dur-
ing reassembly.
8. Next, remove the four mani-
fold bolts (40) with a 6mm
allen wrench.
9. Remove the suction flange
(39) and flange o-ring (38).
Inspect the o-ring for wear
and replace as necessary.
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GXR SERIES REPAIR INSTRUCTIONS
21
20
19
18
17
11. Remove the guided p-valve, (19), valve springs (18), v-sleeves
(21) and pressure rings (20). Inspect for wear and replace
as necessary. Remove the spacer ring (17) from the
plungers (8).
12. If the crankcase oil seals (15)
are to be replaced, they can
be removed by prying loose
with a screwdriver. Take care
not to make contact with the
plunger (8) and pry out the
oil seals from their housing.
Seals should not be rein-
stalled until after step #16.
13. Reassemble in reverse order.
Fill the crankcase with the
proper amount of oil (see
specifications page 3)
The pump is now ready for
operation.
For maintenance of the gear end of your
pump, contact your local distributor or
Giant Industries at: 419/531-4600
NOTE: Contact Giant Industries for
Service School Information.
Phone: (419)-531-4600
GX and HR Pump Part Numbering System
Wobble
Plate
Shaft
Bore
Pressure (in
100 psi
increments)
Thremal
Relief
Injector Size Valve
GX or HR Series
Vertical
Flow
20=GPM
23=GPM
25=GPM
25=2500 PSI
1=2.1 mm
2=1.8mm
3=2.3mm
1=1/2"
1=3/4"
2=7/8"
3=1"
4=5/8"
1
Horizontal
GX or HR
2.5
25
-
1
1
For example, a GXV2525-112 is a GX pump that produces 2.5 GPM @ 2500 PSI, has a injector with a
2.1mm Oriface, 1/2" thermal relief valve and 7/8" wobble plate bore.
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GXR Series
Dimensions
(inches)
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 self-service car wash applications, the discharge
manifolds are guaranteed for the life of the pump. Our other pump parts, used in
portable pressure washers and in car wash applications, are warranted for five years
from the date of shipment for all pumps used in NON-SALINE, clean water
applications.
2. One (1) year from the date of shipment for all other Giant industrial and consumer
pumps.
3. Six (6) months from the date of shipment for all rebuilt pumps.
4. Ninety (90) days from the date of shipment for all Giant accessories.
Thiswarrantyislimitedtorepairorreplacementofpumpsandaccessoriesofwhichthe manufacturer’s
evaluation shows were defective at the time of shipment by the manufacturer. The following items
are NOT covered or will void the warranty:
1. Defects caused by negligence or fault of the buyer or third party.
2. Normal wear and tear to standard wear parts.
3. Use of repair parts other than those manufactured or authorized by Giant.
4. Improper use of the product as a component part.
5. Changes or modifications made by the customer or third party.
6. The operation of pumps and or accessories exceeding 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
products returned freight prepaid to Giant Industries which are deemed to be defective due to
workmanship or failure of material. A Returned Goods Authorization (R.G.A.) number and completed
warranty evaluation form is required prior to the return to Giant Industries of all products under
warranty consideration. Call (419)-531-4600 or fax (419)-531-6836 to obtain an R.G.A. number.
Repair or replacement of defective products as provided is the sole and exclusive remedy provided
hereunder and the MANUFACTURER SHALL NOT BE LIABLE FOR FURTHER LOSS, DAMAGES,
OR EXPENSES, INCLUDING INCIDENTAL AND CONSEQUENTIAL DAMAGES DIRECTLY OR
INDIRECTLY ARISING FROM THE SALE OR USE OF THIS PRODUCT.
THE LIMITED WARRANTY SET FORTH HEREIN IS IN LIEU OF ALL OTHER WARRANTIES OR
REPRESENTATION, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WAR-
RANTIESORMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSEANDALLSUCH
WARRANTIES ARE HEREBY DISCLAIMED AND EXCLUDED BY THE MANUFACTURER.
GIANT INDUSTRIES, INC., 900 N. Westwood Ave., P.O. Box 3187, Toledo, Ohio
43607
08/2001 GXR.PM6
Ó Copyright 2001 Giant Industries, Inc.
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