HyPrecision Predictive waterjet pump Operator Manual 810120 187
8 – Pump specifications
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.
Fasteners
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).
WARNING
Do not use an adjustable wrench on high-pressure fittings.
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.
WARNING
Do not use more torque than the values specified in these tables for load-carrying fasteners.
Wrench size N∙m lbf ∙ ft
Indicator pin cap screw 5/32-inch hex 5 4
Proximity switch cap screw 3/16-inch hex 11 8
Hydraulic fluid tank access cover 15/16 inch 27 20
Intensifier cap screw 7/8 inch 373 275
High-pressure end cap nut 1-1/2 inch 373 275
Tighten each end cap nut in 68 N ∙ m (50 lbf ∙ ft) increments. Use a repeating cross pattern.
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