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Figure 3.24: Walking Beam Extension
4.
Rotate the caster so that wheel (A) is parallel to the walking
beam; this will make it easier to move the extensions. Pull
walking beam extension (B) out to the desired position and
line up the bolt holes.
NOTE:
Walking beam extension (B) can be adjusted into three
working positions.
5.
Install two M24 x 60 bolts and washers (C) on the bottom
of the beam. Do
NOT
tighten the hardware yet.
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Figure 3.25: Anti-Shimmy Brackets
6.
Retrieve two M24 x 60 bolts and M24 flat washers from the
toolbox. Coat the threads of the bolts with anti-seize
compound. Install bolts and washers (A) in the outboard
side of the walking beam. Do
NOT
fully tighten the
hardware yet.
NOTE:
Depending on the walking beam
’
s position, the outboard
bolts may need to be installed first.
7.
Retrieve two M24 x 60 bolts and M24 flat washers from the
toolbox. Coat the threads of the bolts with anti-seize
compound. Place support brackets (B) onto the walking
beam as shown and secure them with bolts and
washers (C). Do
NOT
fully tighten the hardware yet.
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Figure 3.26: Walking Beam Bolts
8.
Tighten the hardware as follows:
a.
Snug bottom bolts (A), then snug rear bolts (B).
b.
Torque rear bolts (B) to 757 Nm (560 lbf·ft).
c.
Torque bottom bolts (A) to 757 Nm (560 lbf·ft).
IMPORTANT:
Torque the bolts again after the first five hours of operation,
and then once more after ten hours of operation.