Trouble Shooting Guide and
Recommended Spare Parts List: page 14
Dimensions: page 15
Pump mounting selection Guide: page 15
Warranty Information: back page
INSTALLATION INSTRUCTIONS
Required NPSH refers to water: Specic
weight 1kg/dm3, viscosity 1°E at maximum
permissible revolutions .
Operation and Maintenance
Check oil level prior to starting and ensure
trouble-free water supply .
!Important! If there is a danger of frost, the
water in the pump and in the pump ttings
(particularly the unloader valve) must be
emptied. The second discharge port can also
be used and the pump run ‘dry’ for 1-2 minutes for this purpose.
Oil: Use only 8.1 ounces (0.24 litres) of Giant
Oil (p/n 01154) ISO VG 220 GL4 (e.g. Aral
Degol BG220) or SAE 90 GL4 gear oil.
Initial change after 50 operating hours and
then every 500 operating hours. In either
case change the oil once per year.
When the pump is in operation, the drive shaft
end and the coupling must be covered up by
either a contact-protector or by a coupling bell.
Before any maintenance to the pump takes
place the pressure in discharge line and in
pump must be at zero. Close suction line. Disconnect fuses to ensure that the driving motor
is not accidently switched on.
Make sure that all parts on the pressure side of
the unit are vented before starting the pump. In
order to prevent air, or an air-water-mixture
being absorbed and to prevent cavitation
occurring, the pump-NPSHR suction head and
water temperature must be kept under control.
Cavitation and/or compression of gases
lead to uncontrollable pressure-kicks which
can ruin pump and unit parts and also be
dangerous to the operator or anyone
standing nearby.
Caution! When operating in damp places or
with high temperature uctuations. Should
condensate (frothy oil) occur in the gear box
the oil must be changed immediately.
Keep NPSH under control.
Maximum input pressure 145 PSI (10 bar),
maximum suction head -4.35 PSI (-0.3 bar).
Make sure that suction pulsation is sufciently
dampened - water column resonance must
be avoided.
Safety Rules
Pump operation without safety valve as well
as any excess in temperature or speed limits,
automatically voids the warranty . The safety
valve must be regulated in accordance with
the guidelines for liquid spraying units so that
the maximum admissible operating pressure
can not be exceeded by more than 10 %.
Giant Plunger Pumps are suitable for
pumping clean water and other non-agressive
or abrasive media with a specic weight similar
to water.
Before pumping other liquids - especially
pump manufacturer must under all
circumstances be consulted with regard to
the resistance of the pump material. It is the
responsibility of the equipment manufacture
and/or operator to ensure that all pertinent
safety regulations are adhered to.
2
Max.
Max.
Flow
Flow
Model GPM l/minPSIbarRPMinmminmmBHPkW
P2301.14.2200014017500.71180.133.41.51.1
P2171.857.0200014017500.71180.225.52.51.9
P2302.18.120001403450*0.71180.133.42.92.2
P2272.18.0200014017500.71180.256.32.92.2
P2212.38.9200014017500.71180.287.03.32.4
P2173.613.820001403450*0.71180.225.55.03.7
P2183.412.8200014017500.71180.3910.04.73.5
P2273.814.420001403450*0.71180.256.35.23.9
P2194.215.9200014017500.71180.4912.45.84.3
P2214.617.620001403450*0.71180.287.06.54.9
P2204.717.6200014017500.71180.5614.16.54.9
*
Positive inlet pressure required- Make sure that suction pulsation is sufciently dampened-water column reso-
nance must be avoided.
U.S. Metric
Max. Temperature of Pumped Fluids ..................... 86 °F .......................................................................30 °C
Inlet Pressure ........................................................90 PSI ...................................................................6.2 bar
Shaft Rotation ............................................................................................... Top of Pulley Towards Fluid End
Crankshaft Diameter..............................................0.94” ...................................................................... 24 mm
Key Width .............................................................. 0.31” ........................................................................ 8 mm
Shaft Mounting ...............................................................................................................................Either Side
Weight ...................................................................13.25 lbs. ...............................................................6.0 Kg
Consult the factory for special requirements that must be met if the
pump is to operate beyond one or more of the limits specied 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 ll and the oil drain plugs, also. Refer to the repair instructions as necessary for the
proper assembly sequence.
Horsepower Ratings:
We recommend a 1.15 service factor be specied when selecting an electric motor as the power source.
To compute electric motor horsepower required, use the following formula: HP = (GPM X PSI) / 1450.
The formula to determine the horsepower required for a gas engine is: HP = (GPM X PSI) / 1150.
The formula to determine the horsepower required for a diesel engine is: HP = (GPM X PSI) / 1250.
For the Application of a Hydraulic Motor:
To Determine the Torque of a Hydraulic Motor -- (GPM x PSI x 36.77) / RPM = Torque (in-lbs)
Calculating RPM / GPM of Pump:
A pump must be connected to an electric motor or gas or diesel engine with the correct ratio of pulleys
and belts to attain the required speed and GPM. The use of a Variable Frequency Drive (VFD) may also
be used to control the RPM of a properly sized electric motor when variable ows are required.
To calculate a pulley diameter one (1) pulley diameter and the required pump RPM must be known:
(Pump RPM x Pump Pulley Diameter) / Motor RPM = Motor Pulley Diameter
(Motor RPM x Motor Pulley Diameter) / Pump RPM = Pump Pulley Diameter
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 55 ft.-lbs.
(75 Nm).
2. Using a needle nose pliers,
remove the inlet and discharge valve assemblies
(26A), for P230-5100 only,
remove spacer (30A), 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) and drip shield (23B)
from the seal case (20).
Inspect all parts, including
o-ring (21) for wear and
replace as necessary.
8. Check surfaces of plunger
pipe (16B). 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!
7
9. If the crankcase oil seals
(19) are to be replaced,
they can be removed by
prying loose with a at
screwdriver. Take care not
to make contact with the
plunger.
REPAIR INSTRUCTION - P200A-5100 SERIES
Disassembly sequence of the back end of the P200A-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 assembly(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 nd it necessary to service the plunger assembly (16) you can do so by removing
the tension screw (16C). Replace crush washer (16D). washer
prior to replacing it. NOTE: Place side with line in the middle on the ceramic surface and
use a hand press to cursh the washer prior to installing the tension screw. Inspect all
parts and replace as necessary.
Reassembly sequence of the P200A-5100 series pump
1) Reassemble plunger asembly (16) (apply a drop of Loctite to the tension screw (16C) threads)
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 drip shield (23B) and v-sleeve
(23A) over plungers (16)..
5) Generously lubricate v-sleeve (23) and assemble into valve
casing (26). Assemble weep return ring (25) and pressure
ring (24) over plungers (16). Slide valve casing over plungers and seat rmly. Replace the eight socket head cap
screws (34) and tighten to 106 inch-pounds (12 Nm) in a
crossing pattern (see below).
6) Re-install 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 55
foot-pounds
(75 Nm).
5
3
1
8
7
2
4
6
7) Fill crankcase with 8.1 ounces (0.24 L) of oil.