JETStream TwinForce Series - Pressure Conversion; Converting a Pump

45
TwinForce™ Series Waterblast Unit
PRESSURE CONVERSION
The versatility of the Jetstream waterblast
units allows operators to modify the pump to
change to different operating pressure ranges
when necessary.
There are three ranges of pressure and are
usually referred to as 15K, 20K, and 40K. These
are abbreviated names to easily denote the
maximum operating pressure.
• The 15K uid end can operate up to 15,000
psi (1034 bar).
• The 20K uid end can operate up to 20,000
psi (1379 bar).
• The 40K uid end can operate up to 40,000
psi (2758 bar).
When converting a uid end to a different
pressure, it is necessary to exchange the
stufng boxes and manifold with the proper
components for the new operating pressure.
Converting a Pump
Use the following procedure to convert a pump
to a different pressure.
1. Relieve pressure from the pump, shut off
the engine and disengage the clutch.
2. Turn off the water supply,drain the water
tank.
3. Remove the two bolts that secure the
hydro-throttle switch aluminum housing
(Figure 57) to the brass cartridge in the
manifold. Remove the switch and housing
and set aside.
4. Disconnect the bypass drain hose and the
supply coupling from the manifold (Fig-
ure 58).
5. Open the rod box cover and disconnect
the lubrication lines from the stufng box
ttings (Figure 59).
WARNING
!!
When switching to higher operating pressures, it is
necessary that all equipment be properly pressure
rated. Refer to the Jetstream Safety Manual for
specic guidelines for hoses, ttings, etc.
Hydro-Throttle
Switch
Figure 57: Hydro-throttle Switch.
Bypass Hose
Supply Coupling
Figure 58: Line Removal.
Cover
Lubrication
Lines
Figure 59: Disconnecting Lubrication Lines.