Telescopic Boom Series
Models SJ61T & SJ66T
194312
December 2007 Page 187
Section 5 - Procedures Service and Maintenance
5.3-6 Bolt Torque Procedure
Maintaining proper torque is essential to safe aerial
platform operation. Improper bolt torque could result in
an unsafe operating condition and component damage.
Rotary Actuator Bolt Torque Sequence
1. Ensure aerial platform is on a firm level
surface and is in stowed position.
2. Turn main power disconnect switch to off
position.
3. Set the torque wrench to 17 ft.Ib and tighten
mounting bolts in a cross pattern sequence.
1
2
3
4
5
6
7
8
Bolt Torque Sequence
4. Set torque wrench to 35 ft.Ib and tighten
mounting bolts with the same sequence.
5. Torque the center bolt to 480 ft.lb.
Turret Rotation Gear Bolt Torque Sequence
1. Ensure aerial platform is on a firm level
surface and is in stowed position.
2. Turn main power disconnect switch to off
position.
3. Set the torque wrench to 140 ft.ib and tighten
mounting bolts in a cross pattern sequence.
5
4
21
20
19
9
8
7
15
14
13
3
2
1
20
16
12
8
4
18
14
10
6
2
19
15
11
7
3
17
13
9
5
1
24
23
22
12
11
10
18
17
16
6
22
1
20
16
12
8
18
14
10
6
2
23 3
17
13
9
5
4
18
14
10
6
19
15
11
7
3
21
2
19
15
11
7
17
13
9
5
1
20
16
12
8
4
Bolt Torque Sequence
4. Set torque wrench to 280 ft.Ib and tighten
mounting bolts with the same sequence.
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