Vermeer D20x22 Series II, Руководство оператора

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60-6 Supplemental Operations D20x22 Series II Navigator HDD
Step 5:
Torque nuts (4) to 100 ft-lb
(135 Nm).
Step 6:
Draw a line (6) across the
joint, perpendicular to it.
Step 7:
Tighten T-bar
(2)
until lines
are the correct distance apart
for the torque value. Refer to
table for torque
recommendations.
NOTICE:
Overtorquing will cause shear pins (7) inside tong arms to fail. Replace only
with Vermeer pins, P/N 296406760.
4
2
6
7
Thread
Description
Makeup Torque Distance
FST #200 1000 ft-lb/1356 Nm 1/8˝/3.2 mm
FST #250 1333 ft-lb/1807 Nm 3/16˝/4.8 mm
FST #400 1733 ft-lb/2350 Nm 1/4˝/6.4 mm
FST #600 2667 ft-lb/3616 Nm 1/4˝/6.4 mm
FST #650 3333 ft-lb/4519 Nm 1/4˝/6.4 mm
FST #700 3333 ft-lb/4519 Nm 5/16˝/8 mm
FST #750 3333 ft-lb/4519 Nm 5/16˝/8 mm