Tightening And Torquing Bolts; Assembly Tools - JLG 1930ES Service Maintenance Manual

Tightening and Torquing Bolts

If an air impact wrench is used to tighten bolts, extreme
care should be taken to ensure that the bolts are not tight-
ened beyond their specified torque.
The following steps describe how to tighten and torque
bolts or socket head cap screws in a bolt circle.
1. Tighten (but do not torque) bolt "A" until snug.
2. Go to the opposite side of the bolt circle and tighten
bolt "B" until equally snug.
3. Crisscross around the bolt circle and tighten remain-
ing bolts.
4. Now use a torque wrench to apply the specified
torque to bolt "A".
5. Using the same sequence, crisscross around the
bolt circle and apply an equal torque to the remain-
ing bolts.

Assembly Tools

Figure 3-21. Assembly Tool 1
3121166
BOLT A
BOLT B
– JLG Lift –
SECTION 3 - CHASSIS & SCISSOR ARMS
Figure 3-22. Assembly Tool 2
Figure 3-23. Assembly Tool 3
3-25