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.
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
1600 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
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. 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.
5. Crankshaft rotation on Giant Industries, Inc.
pumps should be made in the direction designated by the arrows on the pump crankcase.
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 3-9.
6. 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.
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.
IMPORTANT OPERATING CONDITIONS
Failure to comply with any of these conditions invalidates the warranty.
1. Prior to initial operation, add oil to the
crankcase so that oil level is between the two
lines on the oil dipstick. DO NOT OVERFILL.
Use Giant recommened Oil
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.
2. Pump operation must not exceed rated
pressure, volume, or RPM. A pressure relief
device must be installed in the discharge of the
system.
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.
Consult the factory for special requirements that must be met if the pump is
to operate beyond one or more of the limits specified above.
PULLEY INFORMATION
Pulley selection and pump speed are based on a 1725
RPM motor and "B" section belts. When selecting
desired GPM, allow for a ±5% tolerance on pumps
output due to variations in pulleys, belts and motors
among manufacturers.
1.Select GPM required, then select appropriate
motor and pump pulley from the same line.
2.The desired pressure is achieved by selecting the
correct nozzle size that corresponds with the pump
GPM.
Horsepower ratings shown are the power requirements for the pump. Gas engine power outputs must
be approximately twice the pump power requirements shown above.
We recommend that a 1.1 service factor be specified
when selecting an electric motor as the power source.
To compute specific pump horsepower requirements,
use the following formula:
Consult the factory for special requirements that must be met if the pump is
to operate beyond one or more of the limits specified above.
PULLEY INFORMATION
Pulley selection and pump speed are based on a 1725
RPM motor and "B" section belts. When selecting
desired GPM, allow for a ±5% tolerance on pumps
output due to variations in pulleys, belts and motors
among manufacturers.
1.Select GPM required, then select appropriate
motor and pump pulley from the same line.
2.The desired pressure is achieved by selecting the
correct nozzle size that corresponds with the pump
GPM.
Horsepower ratings shown are the power requirements for the pump. Gas engine power outputs must
be approximately twice the pump power requirements shown above.
We recommend that a 1.1 service factor be specified
when selecting an electric motor as the power source.
To compute specific pump horsepower requirements,
use the following formula:
Consult the factory for special requirements that must be met if the pump is
to operate beyond one or more of the limits specified above.
PULLEY INFORMATION
Pulley selection and pump speed are based on a 1725
RPM motor and "B" section belts. When selecting
desired GPM, allow for a ±5% tolerance on pumps
output due to variations in pulleys, belts and motors
among manufacturers.
1.Select GPM required, then select appropriate
motor and pump pulley from the same line.
2.The desired pressure is achieved by selecting the
correct nozzle size that corresponds with the pump
GPM.
Horsepower ratings shown are the power requirements for the pump. Gas engine power outputs must
be approximately twice the pump power requirements shown above.
We recommend that a 1.1 service factor be specified
when selecting an electric motor as the power source.
To compute specific pump horsepower requirements,
use the following formula:
Consult the factory for special requirements that must be met if the pump is
to operate beyond one or more of the limits specified above.
PULLEY INFORMATION
Pulley selection and pump speed are based on a 1725
RPM motor and "B" section belts. When selecting
desired GPM, allow for a ±5% tolerance on pumps
output due to variations in pulleys, belts and motors
among manufacturers.
1.Select GPM required, then select appropriate
motor and pump pulley from the same line.
2.The desired pressure is achieved by selecting the
correct nozzle size that corresponds with the pump
GPM.
HORSEPOWER INFORMATION
Horsepower ratings shown are the power requirements for the pump. Gas engine power outputs must
be approximately twice the pump power requirements shown above.
We recommend that a 1.1 service factor be specified
when selecting an electric motor as the power source.
To compute specific pump horsepower requirements,
use the following formula:
Consult the factory for special requirements that must be met if the pump is
to operate beyond one or more of the limits specified above.
NOTE:
In order to drive the pump from the side opposite the present shaft extension, simply
remove the valve casing from the crankcase and rotate the pumps 180 degrees to the
desired position. Be certain to rotate the seal case (item #20) as well, so that the weep
holes are down at the six o'clock position. Exchange the oil fill and the oil drain plugs,
also. Refer to the repair instructions as necessary for the proper assembly sequence.
Consult the factory for special requirements that must be met if the pump is
to operate beyond one or more of the limits specified above.
NOTE:
In order to drive the pump from the side opposite the present shaft extension, simply
remove the valve casing from the crankcase and rotate the pumps 180 degrees to the
desired position. Be certain to rotate the seal case (item #20) as well, so that the weep
holes are down at the six o'clock position. Exchange the oil fill and the oil drain plugs,
also. Refer to the repair instructions as necessary for the proper assembly sequence.
Consult the factory for special requirements that must be met if the pump is
to operate beyond one or more of the limits specified above.
NOTE:
In order to drive the pump from the side opposite the present shaft extension, simply
remove the valve casing from the crankcase and rotate the pumps 180 degrees to the
desired position. Be certain to rotate the seal case (item #20) as well, so that the weep
holes are down at the six o'clock position. Exchange the oil fill and the oil drain plugs,
also. Refer to the repair instructions as necessary for the proper assembly sequence.
Item Part #Description Qty.
1908356-0010 Oil Seal3
11
REPAIR INSTRUCTION - P200A-3100/5100 SERIES
1.With a 22mm socket
wrench, remove the (3)
discharge valve plugs and
(3) inlet valve plugs (32)
Inspect the o-ring (33) for
wear and replace if damaged.
4.Apply one drop of Loctite
243 to the valve plugs (32)
and tighten to 33 ft.-lbs.
2.Using a needle nose pliers,
remove the inlet and
discharge valve assemblies
(27-30) and o-ring (31).
Inspect all parts for wear
and replace as necessary.
5.Next, use a 5mm allen
wrench to remove the 8
socket head cap screws
(34).
3.By inserting a small screw
driver between the valve
seat (27) and the valve
spring retainer (30), the
valve assembly can be
separated.
6.Carefully slide the valve
casing (26) out over the
plungers.
7.Remove the weep return
ring (25), pressure ring
(24), and v-sleeve (23)
from the valve casing (26).
Remove the rear v-sleeve
(23A) from the seal case
(20). Inspect all parts,
including o-ring (21) for
wear and replace as
necessary
16
8.Check surfaces of plunger
(16). A damaged surface
will cause accelerated
wear on the seals. Deposits of any kind must be
carefully removed from
the plunger surface. A
damaged plunger must be
replaced!
12
9.If the crankcase oil seals
(19) are to be replaced,
they can be removed by
prying loose with a flat
screwdriver. Take care not
to make contact with the
plunger.
REPAIR INSTRUCTION - P200A-3100/5100 SERIES
Disassembly sequence of the back end of the P200A-3100/5100 series pump.
1)Before you begin, drain the oil from the crankcase.
2)Remove the crankcase cover (3) and o-ring (4) from the crankcase (1). To remove the crankshaft (13),
remove the bearing cover (7) and sight glass (8). Using a rubber mallet, remove the crankshaft axially
through the connecting rods by tapping on the end of the shaft. Be careful not to bend or damage the
connecting rods during crankshaft removal.
3)If the bearings (12A and 12B) and radial shaft seal (11) are still in the crankcase, remove them. Inspect
both bearings and seal for wear and replace if necessary.
4)Remove the connecting rod (15) and plunger (16). Remove the wrist pin (17) if necessary. Check the
plunger bore in the crankcase for wear. Inspect parts and replace as necessary.
5)Should you find it necessary to service the plunger assembly (#16) you can do so by removing the tension
screw (#16D). Inspect all parts and replace as necessary.
Reassembly sequence of the of the P200A-3100/5100 series pump
1)Reassemble plunger (16) and the connecting rod (15) with wrist pin (17). Place assemblies in crankcase
(1). Install crankshaft through connecting rods again being careful not to bend or otherwise damage the
connecting rods.
2)Replace left and right side bearings (12A and 12B) if they were removed from the crankshaft. Be certain
the bearings are pressed all the way onto the shaft and completely into the crankcase. Replace radial shaft
seal (11), bearing cover (7), sight glass (8), and crankcase cover (3) with its o-ring (4).
3)If oil seals (19) were removed, replace with seal lip towards crankcase. Lubricate seal before replacing.
4)Replace seal case (20) with o-rings (21) over plungers. Generously lubricate o-rings and oil seal before
reassembly. Replace v-sleeve (23) over plungers (16)..
5)Generously lubricate v-sleeve (23). Assemble v-sleeves (22) into valve casing (26). Assemble weep
return ring (25) and pressure ring (24) over plungers (16). Slide valve casing over plungers and seat
firmly. Replace the eight socket head cap screws (34) and tighten to 105 inch-pounds in a crossing
pattern (see below).
6)Replace the six o-rings (31)
and the six valve assemblies
(27-30). Now replace the six
valve plugs with o-rings (32
and 33) and tighten securely
with a 22mm socket wrench to
33 foot-pounds.
7)Fill crankcase with 8.1 ounces
of oil.
Pump Mounting Selection Guide
Bushings
07174 - 24 mm Tapered H Bushing
Pulley & Sheaves
01061 - 7.75” Cast Iron 1 gr. - AB Section
01062 - 7.75” Cast Iron - 2 gr. - AB Section
MALFUNCTIONCAUSEREMEDY
The Pressure and/Worn packing sealsReplace packing seals
or the DeliveryBroken valve springReplace spring
DropsBelt slippageTighten or Replace belt
Worn or Damaged nozzleReplace nozzle
Fouled discharge valveClean valve assembly
Fouled inlet strainerClean strainer
Worn or Damaged hoseRepair/Replace hose
Worn or Plugged relief valve on pumpClean, Reset, and Replace worn parts
CavitationCheck suction lines on inlet of
pump for restrictions
UnloaderCheck for proper operation
Water in crankcaseHigh humidityReduce oil change interval
Preventative Maintenance Check-List & Recommended Spare Parts List
CheckDailyWeekly50hrsEvery Every Every
500 hrs 1500 hrs 3000 hrs
Oil Level/QualityX
Oil LeaksX
Water LeaksX
Belts, PulleyX
PlumbingX
Recommended Spare Parts
Oil ChangeX X
Seal Spare Parts (1 kit/pump) X
(See page 11 for kit list)
Oil Seal Kit (1 kit/pump) X
(See page 11 for kit lit)
Valve Spare Parts (1 kit/pump) X
(See page 11 for kit list)
14
P200A-3100/5100 DIMENSIONS - INCHES (mm)
15
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. 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.
This warranty is limited to repair or replacement of pumps and accessories of which the 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 WARRANTIES OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND ALL SUCH
WARRANTIES ARE HEREBY DISCLAIMED AND EXCLUDED BY THE MANUFACTURER.