Torque all fittings to the manufacturer's specifications.
Follow the tubing manufacturer's recommendations for high-pressure tubing bending radii.
When pressurizing any new, rebuilt, or serviced high pressure components, remove all personnel
from the immediate area until the system pressure has been applied for three minutes and has
been cycled on and off at least three times. Gradually increase pressure [maximum of 1,379 bar
(20,000 psi) per minute].
High-pressure water may remain in the system for a prolonged period after closing the high-
pressure water source. Bleed the system pressure off before servicing any part of the pump.
Follow the manufacturer's recommendations for servicing the pump and use only original
manufacturer replacement parts.
Visually examine the entire system before placing it in operation. If any fault or malfunction,
correct it.
Tools
Use only approved test equipment. Examine the equipment regularly for correct operation and
calibration.
Use the correct tools for the job. Use of incorrect tools can result in injury to personnel or costly
damage to the equipment.
Remove all tools and rags from around the machine after servicing and before starting the
pump.
Use only approved work platforms. Never climb on or around the equipment on makeshift
devices.
Protective Clothing
Do not wear loose clothing while working around rotating parts of machinery.
Pressurized air can drive particles into eyes and skin if handled incorrectly. To prevent injury, use
appropriate protective equipment and clothing, and exercise extreme caution.
See Personal Protective Equipment (PPE) for more information.
Gland Nut Torque Specification
If a torque value for a gland nut is not specified, reference this table to determine torque value. Always
leave 3–4 threads showing between the end of the high-pressure tubing and gland nut collar.
32-755-500.M | Rev. 0 | April 2023
© 2023 Advanced Pressure Systems. All rights reserved.
TUBING O.D.
1/4"
3/8"
9/16"
TORQUE [ FT. LB. (Nm) ]
15 – 25 (20 – 34)
35 – 45 (47 – 60)
60 – 75 (80 – 100)
Page 34 of 86
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