BOOM RT770E SERVICE MANUAL
4-30
Published 11/26/2014, Control # 447-05
90. Position tele 1 (2) up side down and behind tele 2 (3); set
tele 1 (2) on adequate supports.
91. Using a grease gun or brush, apply grease to the inside
of tele 1 (2) in the areas where the tele 2 rear wear pads
will touch upon assembly.
92. Attach the grease hose (81) and related parts (79, 80,
77, 78) to each rear top wear pad (94), then install the
wear pad/grease hose assembly into the attaching
bracket on each side of tele 2 (3) (see Figure 4-53).
NOTE: Do not allow the wear pad (94) to hang from the
grease hose, as the threads of the wear pad can be
damaged. If wear pad threads are damaged,
replace the wear pad; do not try to repair with
thread tape.
93. Align tele 1 and 2 with each other, then partially insert
tele 2 (3) into tele 1 (2).
94. Use the shims (70) to adjust the tele 2 rear wear pad
assemblies (71, 82) such that the wear pads are within
2 mm (0.08 in) of the sides and the bottom of tele 1. An
equal number of shims should be used on each side.
95. Insert tele 2 (3) three-quarters of the way into tele 1 (2).
96. Install the shims (53) and the front lower wear pads (54,
55) into the bottom of tele 1 (2).
97. Install the left, right, and bottom keeper plates (2x-14,
13) to the front of tele 1 (2) using the bolts (19), flat
washers (16), lock washers (17), and nuts (18).
98. Install the stop block (56) and shim (57) to the front of
tele 1 (2) using the two bolts (58), four washers (16), two
lock washers (17), and two nuts (18) (left and right
sides).
99. After ensuring that the tele 3 retract cables (65) are not
crossed, install the four cable ends into the slots of the
retract anchor weldment (63); wrap duct tape around the
anchor weldment to secure the cables in place (see
Figure 4-54).
100.Install the anchor plate (64) onto the studs of the retract
anchor weldment (63) and secure with the nuts (66) (see
Figure 4-54).
101.Attach the anchor plate (64) to the top of tele 1 (2) using
the two bolts (69), four flat washers (67), and two nuts
(18) (see Figure 4-55).
102.Using an adequate lift and sling, slightly raise the front of
tele 2 (3) for the purpose of installing wear pads into the
front of tele 1 (2).
103.Install the upper wear pad (11) into the front of tele 1 (2)
using the two bolts (27) and nuts (28) (left and right
sides); ensure the thin portion of the upper wear pad (11)
is oriented to the side of tele 1 (2).
104.Install the keeper plate (15) to the front of tele 1 (2) using
the three bolts (19), six flat washers (16), three lock
washers (17), and three nuts (18) (left and right sides).
105.Lower tele 2 (3) down onto the newly installed wear pads
(11).
106.Attach the trunnion plate (60) to the inside of tele 1 (2)
using the five bolts (62) and flat washers (61) (left and
right sides) (see Figure 4-56).
FIGURE 4-54
8008-29
64
63
65
66
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