
16
PI-197
January 2022
SECTION 5: OPERATION
5.0 OPERATING J-FORCE
As per the WJTA-IMCA Recommended Practices, all operators shall
follow the OSHA regulations for personal protective equipment. (OSHA
guidelines for Personal Protective Equipment are available in document
number 3151-12R 2004, which can be obtained from www.osha.gov.)
All operators shall be issued suitable head protection, eye protection,
hearing protection, body protection, hand and foot protection and
respiratory protection (if needed). For detailed specifications on all
protections required, refer to the WJTA-IMCA ‘Recommended Practices
for the Use of High Pressure Waterjetting Equipment’ Section 6,
Protective Equipment For Personnel.
The 4” J-Force Gen III can be used for minimum service
temperature of -20°C (-4°F) and a maximum service temperature of
115°C (240°F). Use at lower or higher than recommended temperatures
may result in premature o-ring seal failure.
5.1 Start by slowly increasing pressure to 500 psi and check the
entire system, including all connections, for leaks. Increase pressure
in increments, pausing at each to inspect system for leaks, proper
rotation of tool, temperature, and other operational anomalies. If any
problems are discovered, lower pressure back to zero and turn off
source of power before making any adjustments.
5.2 During operation, it is normal for water to leak out of the front of
the head from around the front nozzle (or front plug). This leak-by water
comes from the water-bearing that the tool operates on.
5.3 When removing the JF4X22 nozzle with the 3/4” Type M male hose
connection (PN 67030) from the hose, the Type M Adapter may unscrew
from the inlet nut (PN 65922) and stick in the hose end. The Type M
Adapter (PN 65923) has a 3/16” internal hex cutout that allows an allen
wrench or hex key to be used to remove the adapter from the hose end.
Using a wrench on the external threads of the adapter will damage the
threads.