TM 5-3810-306-34
h. Using an adequate lifting device, slide fly section
c. Install small spacer (44), on shaft.
into base section. Be careful the round side
wear pads (35) and upper adjustable wear pads
d. Install cone (47), bearing (46), sheave (48),
(19) do not fall out.
bearing (46) and cone (47). Install sheave on
shaft (39).
i. Raise fly section and install two new bottom
wear pads (6). Lower fly section and remove
e. Repeat step d for second sheave assembly.
lifting device.
f. Install large spacer (43).
3. SECURE THE TELESCOPE CYLINDER TO THE
BASE SECTION WITH PIN (15), TWO WASHERS
g. Align shaft (39) so flat of cap (38) is down.
(1) AND TWO COTTER PINS (2).
Install cap and secure with two capscrews (16)
and lockwashers (12).
4. IF REMOVED, INSTALL ADJUSTING SCREWS
(10) IN BOOM BASE SECTION FOUR PLACES.
h. Install washer (40), slotted washer (41), and nut
(42) on threaded end of shaft.
5. INSTALL FOUR NEW ADJUSTABLE WEAR PADS
(5).
i. Using spanner wrench, tighten nut (42) while
rotating sheave and checking for proper bearing
6. ON FRONT ADJUSTABLE WEAR PADS, INSTALL
alignment.
KEEPER (11) ON INSIDE OF BOOM AND SECURE
FROM OUTSIDE WITH TWO CAPSCREWS (13)
j. Lock nut (42) by bending tab from slotted
AND LOCKWASHERS (12).
washer (41) into slot on nut.
7. AT SIDE ADJUSTABLE WEAR PADS, INSTALL
k. Repeat steps c thru e for lower boom nose
PLATE (17) ON WEAR PADS AND SECURE WITH
sheaves.
TWO CAPSCREWS (16) AND LOCKWASHERS
(12).
I. Repeat step d for third sheave assembly.
8. AT FRONT OF BASE SECTION, INSTALL SPACER
m. Install small spacer (44).
(7) AND SECURE WITH TWO CAPSCREWS (8)
AND WASHERS (9).
n. Repeat steps a thru j for lower boom nose
sheaves.
9. REASSEMBLE BOOM NOSE.
10. IF REMOVED INSTALL BOOM.
(REFER TO
a. Start upper boom nose shaft (39) from right side
of boom nose (end with two tapped holes).
11. TEST FOR PROPER OPERATION.
b. If necessary, press two cups (49) in each of the
five sheaves (45).
15-14
