4
Operation Manual
General Safety Precautions
Read Instructions
Read and follow all the manufacturer’s instruc-
tions prior to using any waterblast product. Con-
tact the manufacturer if unsure of any details.
Further instructions for safe operation are
located in the Jetstream Safety Manual. Read
this manual before operating the equipment.
Inspect Equipment
Inspect the condition of all components prior
to use. Do not use any item that is in suspect
condition. If unsure about the condition of a
component, ask a supervisor or maintenance
personnel for instructions. Use only compo-
nents that are marked with a recommended
operating pressure. Never exceed the operat-
ing pressure of the weakest component in the
system.
Check Pressure Ratings
All components in the
system must be properly
rated for the intended
operating pressure. Refer
to the Safety Manual for
more information on
pressure ratings.
Rupture Discs
Installation of two rupture discs is necessary
to protect the pump and operators.
• Rupture disc ratings: one at 120% of oper-
ating pressure, one at 140% of operating
pressure
Check Connections
Check the condition of the connection threads
prior to making any high pressure connection.
For 15,000 psi (1000 bar) and lower pressures
use at least four wraps of Teflon tape on male
pipe (NPT) threads for sealing purposes. Do
not allow any tape to overlap the end of the
fitting. Tape fragments may enter the system’s
water stream and clog the nozzle’s orifices.
Apply a coat of anti-seize compound over the
Teflon sealant to prevent “galling” or seizing
of threads. For “Jetstream
®
20K”; “type M”; “MP
(20K)” & HP (40K)” connections use anti-seize
compound on the threads and the male cone.
Tighten Connections
Properly tighten all high pressure connections.
Hand-tighten pipe (NPT) fittings and then
wrevolutions. Do not exceed two revolutions
on NPT threaded connections.
Use caution when using a pipe wrench. Pipe
wrenches can cause deep scoring leading to
weakened components.
Refer to the Technical sections in the 15K, 20K
and 40K catalogs or at the following web page
for more information and torque specifica
-
tions for the various fittings used on these
units.
https://waterblast.com/new-catalogs
Use Two Operators
Use at least two operators when waterblast-
ing. The primary operator handling the clean-
ing device must maintain control of the water
discharge at all times. The secondary operator
controlling the waterblast unit must be posi-
tioned a safe distance of at least 12 ft. (3.7 m)
from the blast operation.
Figure 2: Pressure Rating Markings
Figure 3: Rupture Discs
Figure 4: Primary and Secondary Equipment Operators
Summary of Contents for TwinForce Series
Page 1: ...OPERATION MANUAL TwinForce Series Waterblast Unit...
Page 2: ...Visual Safety System...
Page 11: ...3 TwinForce Series Waterblast Unit...
Page 22: ...14 Operation Manual...
Page 42: ...34 Operation Manual...
Page 48: ...40 Operation Manual...
Page 52: ...44 Operation Manual...
Page 100: ...92 Operation Manual...
Page 104: ...96 Operation Manual...
Page 106: ...A 2 Appendix A Technical Specifications...
Page 107: ...B 1 TwinForce Series Waterblast Unit APPENDIX B LONG TERM STORAGE PROCEDURE...
