Torque Values; Fasteners - Hypertherm HyPrecision Predictive P-15 Operator's Manual

8 – Pump specifications

Torque values

If a fitting leaks after tightening it to the maximum torque value, disassemble the parts. Repair or replace parts that
show deterioration, corrosion, or damage.
Do not use an adjustable wrench on high-pressure fittings.
WARNING
Use only enough torque to make a sufficient seal.
Torque values can vary depending on thread condition. A sufficient seal can be made at values
much lower than the maximum values shown in the table.

Fasteners

Do not use more torque than the values specified in these tables for load-carrying fasteners.
WARNING
Because of high pressure in the intensifier, all fasteners used on hydraulic and high-pressure water parts are
grade 8. Lock washers are necessary for fasteners that are used for cyclic loading.
Special fasteners
These torque values are for bolts that are coated in antiseize bolt lubricant (white lithium grease).
Indicator pin cap screw
Proximity switch cap screw
Hydraulic fluid tank access cover
Intensifier cap screw
High-pressure end cap nut
Tighten each end cap nut in 68 N ∙ m (50 lbf ∙ ft) increments. Use a repeating cross pattern.
HyPrecision Predictive waterjet pump Operator Manual 810120
Wrench size
5/32-inch hex
3/16-inch hex
15/16 inch
7/8 inch
1-1/2 inch
N∙m lbf ∙ ft
5 4
11 8
27 20
373 275
373 275
187