Gradall 544D (9136-4003) Service Manual - Manual (Page 313)

4.1
R ETRACT C HAINS
The 3 /
4
" boom-section 4 retract chain is fastened at the bottom inside rear of the boom,
passes over a roller on boom-section 3 and is fastened to the bottom front of
boom-section 2.
The 1" boom-section 3 retract chain is fastened to the bottom inside
rear of the boom, passes over a roller mounted to
boom-section 2 and is fastened to the front
of boom-section 1.
R ETRACT C HAIN C OMPONENTS
Item
1
2
3
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20
21
22
Qty.
1
3
2
1
1
2
8
1
1
3
1
1
2
2
4
4
2
2
1
2
Description of Part
Hex Jam Nut, 3 /
4
-16 (torque to 100 ft-lbs)
Hex Nut, 3 /
4
-16 (torque to 100 ft-lbs)
Hardened Washer, 3/4"
Chain Clevis
Chain, 3 /
4
"
Chain Pin
Cotter Pin
Anchor Bracket
Hex Jam Nut, 7 /
8
-14 (torque to 100 ft-lbs)
Hex Nut, 7/8-14 (torque to 100 ft-lbs)
Chain Clevis
Chain, 1"
Chain Pin
Pin Keeper
Lockwasher, 1 /
2
"
Hex HD Cap Screw, 1 /
2
-13 X 1, GR5
Grease Fitting
Chain Sheave Pin
Roller Bracket
Chain Roller (includes items 23 & 24)
Item
23
24
25
27
28
29
30
31
32
33
35
36
37
38
Description of Part
Bushing
Seal
Thrust Washer
Thrust Washer
Thrust Washer
Thrust Washer
Roller Bracket
Chain Clevis
Stop Bar
Hex HD Cap Screw, 3 /
4
-10 X 1- 3 /
4
, GR5
(torque to 340-365 ft-lbs)
Hardened Washer, 3 /
4
"
Chain Adjustment Block
Spring
Chain Clevis
Stop Bar
Chain Adjustment Block
Spring
Qty.
2
4
4
AR
AR
AR
1
1
1
8
8
1
1
1
1
1
1
GRADALL GRADALL