CAT Pumps CP Series Service Manual

CP PLUNGER PUMP SERVICE MANUAL
E-mail : info@pijttersen.nl / info@catpumps.nl
Internet : www.pijttersen.nl / www.catpumps.nl
3CP MODELS: 3CP1120, 3CP1130, 3CP1140
5CP MODELS: 5CP2120W, 5CP2140WCS, 5CP2150W, 5CP3120, 5CP3120G1, 5CP3130G1,
5CP5120, 5CP5150G1, 5CP6120, 5CP6120G1, 5CP6140, 5CP6150
7CP MODELS: 7CP6170
Optimum performance of the pump is dependent upon the entire liquid system and will be obtained only
with the proper selection, installation of plumbing, and operation of the pump and accessories.
SPECIFICATIONS : Maximum speci cations refer to individual attributes. It is no t
implied that all maximums can be performed simultaneousl y. If more than one
ma ximum is cons idere d, check with your CA T P U MP S s upplier to confirm the
proper performance and pump selection. Refer to individual pump Data Sheet for
complete speci cations, parts list and exploded view.
LUBRICATION: Fill crankcase with special CAT PUMP oil per pump speci cations
(3CP-10 oz., 5CP-17 oz., 7CP-38 oz.). DO NOT RUN PUMP WITHOUT OIL IN
CRANKCASE. Change initial ll after 50 hours running period. Thereafter, change
oil every 3 months or 500 hour intervals. Additional lubrication may be required
with increased hours of operation and temperature.
PUMP ROTATION : Pump was designed for forward rotation to allow optimum
lubrication of the crosshead area. Reverse rotation is acceptable if the crankcase oil
level is increased slightly above center dot to assure adequate lubrication.
PULLEY SELECTION: Select size of motor pulley required to deliver the desired
ow from Horsepower Requirement and Pulley Selection Chart (refer to Tec h
Bulletin 003 or individual Data Sheet).
DRIVE SELECTION: The motor or engine driving the pump must be of adequate
horsepower to maintain full RPM when the pump is under load. Select the electric
motor from the Horsepower Requirement Chart according to required pump
discharge ow, maximum pressure at the pump and drive losses of approximately
3-5% . Consult the manufacturer of gas or diesel engine for selection of the proper
engine size.
MOUNTING: Mount the pump on a rigid, horizontal surface in a manner to permit
drainage of crankcase oil. An uneven mounting surface will cause extensive
damage to the pump base. To minimize piping stress, use appropriate
hose to inlet and discharge port s . Use the correct belt; make sure pulleys are
aligned. Excessive belt tension may be harmful to the bearings. Hand rotate pump
before starting to be certain shaft and bearings are free moving.
LOCATION : If the pump is used in extremely dirty or humid conditions, it is
recommended pump be enclosed. Do not store or operate in excessively high
temperature areas or without proper ventilation.
INLET CONDITIONS: Refer to complete Inlet Condition Check-List
before starting system. DO NOT STARVE
above 130°F are permissible. Add 1/2 PSI inlet pressure per each degree F over
130°F. Elastomer or RPM changes may be required. See Tech Bulletin 002 or call
CAT PUMPS for recommendations.
C. A .T. : Ins tallation of a C. A. T. (C aptive Acce leration Tu be) is recommended in
applications with stressful inlet conditions such as high temperatures, booster pump
feed, long inlet lines or quick closing valves.
All systems require both a primary pressure regulating device (i.e., regulator, unloader) and a secondary pressure safety relief device (i.e., pop-o valve, safety valve).
Failure to install such relief devices could result in personal injury or damage to the pump or to system components. CAT PUMP S does not assume any liability or responsibilit y
for the operation of a customer's high pressure system
Pijttersen B.V.
Stavangerweg 14A
9723 JC GRONINGEN
THE NETHERLANDS
INSTALLATION AND START-UP INFORMATION
exibl e
in this manual
THE PUMP OR RUN DRY. Temperature s
.
Tel.: +31 (0)50-8200963
E-mail : info@pijttersen.nl / info@catpumps.nl
Internet : www.pijttersen.nl / www.catpumps.nl
DISCHARGE CONDITIONS : OPEN ALL VALVES BEFORE
avoid deadhead overpressure condition and severe damage to the pump or system
Install a Pulsation Dampene r on the discharge head or in the discharge line as
close to the head as possible. Be certain the pulsation dampener (Prrrrr-o-lator) is
properly precharged for the system pressure (see individual Data Sheet).
A reliable Pressur e Gauge should be installed near the discharge outlet of the high
pressure manifold. This is extremely important for adjusting pressure regulating
devices and also for proper sizing of the nozzle or restricting ori ce. The pump is
rated for a maximum pressure; this is the pressur e which would be read at the
discharge manifold of the pump
Use PTFE thread tape or pipe thread sealant (sparingly) to connect accessories or
plumbing. E xe rcis e ca ution not to wrap tape beyond the las t threa d to a void
tape from becoming lodged in the pump or accessories. This condition will cause a
malfunction of the pump or system.
PRESSURE REGULATION:
device (i.e., regulator, unloader) and a secondary pressure safety relief device
(i.e., pop-o valve, safety valve). The primary pressure device must be installed on
the discharge side of the pump. The function of the primary pressure regulating
device is to protect the pump from over pressurization, which can be caused by a
plugged or closed o discharge line. Over pressurization can severely damage the
pump, other system components and can cause bodily harm. The secondary safety
relief device must be installed in-line between the primary device and the pump or
on the opposite side of the manifold head . This will ensure pressure relief of the
system if the primary regulating device fails. Failure to install such a safely device
will void the warranty on the pump.
When the high pressure system is left running with the trigger gun o , the by-pass
liquid can be routed to drain or to the pump inlet. If routed to the pump inlet, the
by-pass liquid can quickly develop excessive
pump. A THERMO VALVE installed in the by-pass line is recommended to protect
the pump. An AUTO SHUT-OFF ASSEMBLY may also be used.
NOZZLES : A worn nozzle will result in loss of pressure. Do not adjust pressure
regulating device to compensate. Replace nozzle and reset regulating device to
system pressure.
PUMPED LIQUIDS: Some liquids may require a
storing . For pumping liquids other than water, contact your
STORING: For extended storing or between use in cold climates, drain all pumped
liquids from pump and ush with antifreeze solution to prevent freezing an d
damage to the pump. DO NOT RUN PUMP WITH FROZEN LIQUID (refer to Tech
Bulletin 083).
WARNING
STARTING
, NOT AT THE GUN OR NOZZLE.
All systems require both a primary pressure regulating
heat and result in damage to the
ush between operations or befor
CA T PUMP S supplier.
SYSTEM to
.
e