Hypertherm HyPrecision 15, Operator'S Manual

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HyPrecision15/30/50 Operator Manual 808240 171
8 – Pump specifications
Pump speci
fications
Torque values
Fasteners
When installing more than 1 fastener on a part, tighten each fastener in 45° increments using a repeating sequential
cross pattern until the recommended torque is reached.
Because of high forces inside the intensifier, all bolts and cap screws that fasten load-carrying parts are grade 8.
Fasteners that are exposed to cyclic loading also use lock washers. Torque load-carrying fasteners to the specifications in
these tables unless otherwise noted.
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. Use only enough torque to make a sufficient seal.
This chart applies to all fasteners used on hydraulic and high-pressure water parts.
Special fasteners
These torque values are for bolts that are coated in white lithium grease antiseize bolt lubricant.
Wrench size
Torque
N∙m lbf ∙ ft
High-pressure end cap nut 1-1/2 in. 373 275
Intensifier cap screw 7/8 in. 373 275
Hydraulic fluid tank access cover 15/16 in. 27 20
Proximity switch cap screw 3/16-in. hex 11 8
Indicator pin cap screw 5/32-in. hex 5 4