Rotary SPO55E - 11.6 Prepare the Overhead assembly

Fig. 25
11.6 Prepare the Overhead assembly.
1 Adjust overhead to 2896mm between centerline
of sheave pins, Fig. 25. Install (2) 3/8"-16NC
x 3/4" Flanged HHCS & Flanged Lock Nuts, do
not tighten. Install overhead stiffener angle inside
center of overhead using (4) 3/8"-16NC x 1" Flan-
ged HHCS and Flanged Lock Nuts, see Fig.25.
2. Mount Overhead switch assembly towards power
unit column using (2) 1/4"-20NC x 3/4" lg. HHCS,
1/4”-20NC Nuts and 1/4" Star Washers, Fig. 25 &
Fig. 26.
3. Insert 1/4"-20NC x 2-3/4" HHCS through pivot
hole in end of switch bar. Insert opposite end of
bar through slot in switch mounting bracket Fig
25.Then secure HHCS and Switch Bar to overh-
ead as shown, using (2) 19mm spacer and 1/4”-
20NC Lock Nut. Tighten Hex bolt leaving
1.6mm gap between the spacer and the
overhead assembly.
3. With a ladder by each column, two people
position the overhead assembly onto column
mounting brackets and fasten with 3/8"-16NC x
3/4" Lg. Flanged HHCS. Use (1) star lock
washer on power unit side, Fig. 27. Use middle
holes. Tighten bolts at center of overhead
assembly.
Fig. 25 Detail
A 1/4“-20NC x 2-3/4“ HHCS and
lock nut.
B 1.6mm gap
C Star washers
D 299mm
E (2) 19mm Spacers
F Overhead Switch
G 50mm minimum
H (2) 3/8"-16NC x 3/4" HHCS
and anged lock nut.
I (4) 3/8"-16NC x 1" HHCS and
anged lock nut.
J 2896mm
Fig. 26 Detail
A (2) 1/4“-20NC x 3/4“ lg. HHCS
B On one side use (2) 1/4“ External Tooth Lock was-
hers.
C (2) 1/4“-20NC Zinc Hex Nuts
Fig. 27 Detail
A (2) 3/8“-16NC x 3/4“ HHCS
B (2) 3/8“ Lock Nuts
Fig. 26
Fig. 27
40
A
B
Fig.9a
Fig. 9b
Fig. 8
A
CB
D
E
F
G
H
I
J
A
B
C