Document P/N:
2P121260
Release Date: 02/27/2017
Revision: E
25 of 41
C. Plunger Pump Valve Seating Procedure:
1. In order to protect the fluid cylinder from washing before sustained pumping begins, the tapered
valve seats must be pressured up and fully seated creating a positive fluid seal.
2. Adjust the test choke for high pressure/low pump RPM. Shift the transmission to 1st gear and
slowly increase the throttle setting, to achieve the values in the table below, for 2 to 3 minutes or
until a series of audible popping noises are heard. This indicates the seats have properly set in
the taper. The desired pressure for each plunger size is as follows:
PLUNGER
DIAMETER
IN (MM)
SEATING
PRESSURE
PSI (MPA)
2 1/2 (63.5)
9,400 (64.8)
2 3/4 (69.9)
9,400 (64.8)
3 (76.2)
9,400 (64.8)
3 1/2
(88.9)
4,600 (31.7)
4 (101.6)
4,600 (31.7)
4 1/2 (114.3)
4,600 (31.7)
During this portion of the startup procedure, closely observe the plunger pump for any unusual
noise, vibration, fluid leaks, and oil leaks. Record all pertinent information such as elapsed time,
ambient temperature, power end lube oil temperature, power end lube oil pressure, supercharge
pressure, etc. After returning the engine to idle and transmission to neutral, physically inspect the
plunger pump before proceeding further.
D. Break-In Procedure:
1. Adjust the test choke, engine, and transmission according to the values below. These settings
should be approximately as follows:
PLUNGER
DIAMETER
IN (MM)
INPUT SPEED
PINION PUMP
RPM
POWER
BHP KW
PRESSURE
PSI MPA
FLOW RATE
GPM BPM LPM
2 1/2 (63.5)
1400 304 270 201.3
3586 24.7 116 2.8 440
2 3/4 (69.9)
2963 20.4 141 3.3 532
3 (76.2)
2490 17.2 167 4.0 633
3 1/2 (88.9)
1829 12.6 228 5.4 862
4 (101.6)
1401 9.7 297 7.1 1126
4 1/2 (114.3)
1107 7.6 376 9.0 1425
Run the plunger pump at this setting for one hour. During this time, closely observe the plunger
pump for any unusual noise, vibration, fluid leaks, and oil leaks. Record all pertinent information
such as elapsed time, ambient temperature, power end lube oil temperature, power end lube oil
pressure, supercharge pressure, etc. After returning the engine to idle and the transmission to
neutral, physically inspect the plunger pump before proceeding further.
To Next Page
Loading...
Need help?
General
