Kval 990-H, Service Manual

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Collet Torque Values
KVAL 990-H Service Manual
3-32
Collet Torque Values
KVAL recommends torquing the collets. Torquing adds consistency is important for repeatable
machining. Follow the torque tool manufacturers method of torquing.
TABLE 3- 4.
Torque values.
Collet Collet Nut Type Collet Inner Dia Over 1/16'' Collet Inner Dia Under 1/16''
ER16 Slotted/Hex 42 ft/lbs 30 ft/lbs
ER20 Slotted/Hex 59 ft/lbs 24 ft/lbs
ER25 Slotted 77 ft/lbs 77 ft/lbs
ER25 Mini Nut 25 ft/lbs 25 ft/lbs
ER32 Slotted 100 ft/lbs 100 ft/lbs
ER40 Slotted 130 ft/lbs 130 ft/lbs
Types of Torque Tool Heads
Tip:
Never use a torque wrench to loosen bolts or nuts
Tip:
Always set the torque wrench to zero after using it.