Manitowoc Grove GRT9165, Руководство по обслуживанию

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6-10
Published 10-01-2020 Control # 699-00
SWING SYSTEM GRT9165 SERVICE MANUAL
Swing Bearing Bolts
The inner race of the bearing is secured to the turntable by a
quantity of 71, M12x75mm, 8.8 grade bolts. The outer race
of the bearing is secured to the carrier frame by a quantity of
72, M12x75 mm, 8.8 grade bolts.
Tools Required
The Figure 6-4 illustrates and lists the complete set of
special tools required to torque the turntable bolts.
Inner Race Torquing
The inner race bearing bolts are located on top of the inner
race (Figure 6-3).
1. Extend and set the outriggers.
2. Fully elevate the boom.
3. Torque all bolts to 80% of the full torque value following a
star pattern sequence as shown in (Figure 6-3) starting
with bolt number 1. For more information about torque
values, see
Fasteners and Torque Values , page 1-16.
Tools used are the socket, multiplier, backlash adapter,
necessary extensions, and torque wrench.
4. Return to bolt 1 and torque all bolts using the same star
pattern sequence to the final torque of cited in
Fasteners
and Torque Values , page 1-16. The same tools are used
as in step 3.
FIGURE 6-3
10172