SWING SYSTEM RT540E SERVICE MANUAL
6-10 Published 4-20-2015, Control # 502-01
The inner race of the bearing is secured to the turntable by
36, 1 inch, grade 8 bolts. The outer race of the bearing is
secured to the carrier frame by 36, 7/8 inch, grade 8 bolts.
Torque Values
Torque all inner race turntable bolts (Figure 6-2) to a final
torque of 1162 to 1260 Nm (857 to 929 lb-ft).
Torque all outer race turntable bolts (Figure 6-2) to a final
torque of 769 to 834 Nm (567 to 615 lb-ft).
See Fasteners and Torque Values (pg 1-11).
Tools Required
(Figure 6-3) lists the complete set of special tools required to
torque the turntable bolts.
Inner Race Torquing
1. Extend and set the outriggers. Fully elevate the boom.
2. Torque eight bolts 930 to 1008 Nm (686 to 743 lb-ft)
using the following sequence pattern; 36, 18, 10, 28, 5,
23, 14, and 32. Tools used are the socket, multiplier,
backlash adapter, necessary extensions, and torque
wrench.
3. Return to bolt 1 and torque all bolts sequentially in a
clockwise direction to the final torque of 1162 to 1260
Nm (857 to 929 lb-ft). The same tools are used as in step
1.
Outer Race Torquing
1. Extend and set the outriggers. Fully elevate the boom.
2. Torque eight bolts 615 to 667 Nm (454 to 492 lb-ft) using
the following sequence pattern; 36, 18, 10, 28, 5, 23, 14,
and 32. Tools used are the socket, multiplier, backlash
adapter, necessary extensions, and torque wrench.
3. Return to bolt 1 and torque all bolts sequentially in a
clockwise direction to the final torque of 769 to 834 Nm
(567 to 615 lb-ft). The same tools are used as in step 1.
FIGURE 6-2
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6750-2
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