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Mount fixtures
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• Molykote type GN metal paste
Recommended procedure
Each grip jaw has an alignment hole to assure proper orientation in the grip pocket and proper teeth
alignment. Left and right grip jaws are typically interchangeable.
1. Start the system; see page 37. Start the HPS.
2. Use the grip controls to fully open the jaw carriers (see Table 13 on page 54 for operation of grip
controls). The jaw carriers must be fully open.
3. Lift a grip jaw into the grip pocket and align the alignment hole (3, Figure 12) in the grip jaw to the
alignment pin (4) in the jaw carrier.
4. Place the locating boss (2) into the jaw carrier recess (5).
5. For 300DX frames, the magnet (7) will hold the grip jaw in place. For 600DX frames, tighten the
retainer setscrew (9) against the retainer button (8) through the access hole on the front guide
plate (6, Figure 11) (use 4 mm hex key).
6. Repeat for each grip jaw.
Factory clamping speed is set to 4 mm/sec (0.16 in/sec) closure rate or less. A hazard to
operators may be created if the clamping speed is adjusted faster than 4 mm/sec (0.16 in/
sec).
Use caution if adjusting the clamping speed of the jaws. The jaws can be adjusted to move
very quickly. Keep fingers and hands free of jaws.
Be careful not to injure fingers or hands when installing or removing grip jaws. Grip jaws
typically weigh at least 3.2 kgs (7 lbs) each.
For 600DX frames: The tightness of the retainer setscrew (13, Figure 11 on page 53) should
be checked after 50 consecutive tests are performed with the same set of grip jaws. The
retainer setscrews can vibrate loose and allow the grip jaws to fall out of the jaw carriers.
Table 12. Specifications for cap screws.
Frame
Model
Guide Plate SHCS
(item 7, Figure 11)
Grip Dust Cover BHCS
(item 10, Figure 11)
Size
Quantity
(per
crosshead) Torque
Size of
Hex Key
Needed Size
Quantity
(per
crosshead)
Size of
Hex Key
Needed
300DX-G7 M8 x 25 mm 4
34 N-m
(25 ft-lbs)
6 mm M12 x 20 mm 4 8 mm
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