ITEM PART
DESCRIPTION
NO.
NO.
A21 Hi-Dump Kit/10.0
1
8607-10
Lower Arm, Power Dump
2
7620-3
Pivot Bushing (1/2 x 9/16)
3
7523-2
Clevis Pin W/Hole (1/4 x 5/8)
4
8623-6
Inner Power Dump Arm, RH
5
8623-3
Extension Spring Cable
6
5221-2
Ext Spring (3/4 x 3-1/2")
7
8623-5
Torsion Spring Hook
8
8623-7
Inner Power Dump Arm, LH
9
7620-6
Cable Guide
10
8623-2
Power Dump Cable, 10.0
11
5552
Ball Joint (1/4-28)
12
8402-3
Backup Plate
13
8404-12
Channel Angle/RH
14
8404-13
Channel Angle/Hi-Dump/LH
15
5841
Retainer Washer (3/8 x 1-1/4)
16
8845
Rubber Bumper (30mm OD x 40mm) 3
5/16-18 Female
17
8404-6
Clevis Pin (1/2 x 1-1/2)
18
7517-3
Catcher Pivot Plate
19
7620-15
Roller Wheel
20
8402-9
Catcher Pivot Arm
(Includes Items # 19, 21, 55 & F562)
21
5830
Grease Fitting
22
8404-5
Clevis Pin (1/2 x 1-1/4)
23
8402-4
Upper Cylinder Mount Arm
24
8402-1
Catcher Frame/Hi-Dump
(Includes Items # 21 & 27)
25
7845-1
Rubber Bumper (1.375 x .750)
26
8401-4
Upper Pivot Shaft
27
8201-3
Fiberglide Bearing
28
8401-5
Pivot Arm (Includes Item # 29)
29
8401-9
Decal, Safety Lockout Arm
30
5683
Pivot Bearing
31
8401-1
Torsion Spring (1-1/2)
32
8401-6
Spring Bushing
33
8401-3
Safety Lockout Arm
34
8401-2
Safety Lockout Spring
35
8400-3
Rear Pivot/LH
(Includes Items # 21 & 30)
36
5214-10
Ball Joint (1/2-20) Hi Strength
37
8400-16
Decal, Hi-Dump
38
7047-5
Mount Plate
39
8404-7
MTL Adapter Bracket
40
8430-1
Body Chute, Hi-Dump (10.5)
41
8400-10
Auxiliary Power Terminal Plate
(Includes Item # 42)
42
8400-7
Decal, Electrical Jumper Warning
43
8600-23
Decal, Danger/Body Latch
44
8400-19
Switch Mount
45
8400-9
Decal, Hi-Dump Operation
46
8400-14
Switch Cover (Includes Item # 45)
47
8401-13
Bumper/Hi-Dump Mount
(Includes Item # 37)
48
7854
Plastic Tip, Red
49
7383-2
Body Latch Hook
50
7847
Rubber Bumper (1.5 OD x 1.0)
51
8400-2
Rear Pivot/RH
(Includes Items # 21 & 30)
23
A21 HI-DUMP
ASSEMBLY
®
NO.
ITEM PART
REQ'D
NO.
52
53
2
54
4
55
4
56
1
57
2
58
2
2
Fasteners
1
2
2
2
1
1
1
4
1
2
2
1
5
1
1
1
2
1
4
1
1
2
1
1
1
1
1
2
1
1**
1*
1
1
1
1
1
1
1
1
1
1
1
1
DESCRIPTION
NO.
8402-8
Control Lift Rod
5214-11
Ball Joint (1/2-20LH) Hi Strength
8403-18
Pump Guard
7620-16
Roller Bushing
7031-4
Tube Support Arm/Hi-Dump
8400-77
Spacer/Hi-Dump
8400-39
High Dump Upright Shim
F002
10-24 Keps Nut
F003
1/4-28 Hex Nut
F004
1/4-20 Keps Nut
F009
5/16-18 Whiz Locknut
F012
3/8-16 Keps Nut
F016
1/2-13 Self-Locking Nut
F025
10-24 x 3/8 PPHMS
F027
10-24 x 5/8 PPHMS
F028
10-24 x 3/4 PPHMS
F029
1/4-20 x 1/2 Hex Bolt
F034
5/16-18 x 3/4 Hex Bolt
F035
5/16-18 x 1-1/4 Hex Bolt
F037
10-24 x 5/8 PTH Screw
F038
3/8-16 x 1 Hex Bolt
F039
3/8-16 x 1-1/4 Hex Bolt
F040
3/8-16 x 1-1/2 Hex Bolt
F041
3/8-16 x 1-3/4 Hex Bolt
F048
1/2 SAE Washer
F049
5/16 SAE Washer
F052
5/16 Ext. Star Lock Washer
F068
1/8 x 1 Cotter Pin
F069
3/32 x 1/2 Cotter Pin
F085
3/16 Rivet Backup Washer
F111
1/8 x 3/4 Cotter Pin
F151
3/8-16 x 7/8 Hex Bolt
F183
.312 x .700 x .074 Washer
F208
5/16-18 x 2-1/4 Hex Bolt
F241
.375 x .875 x .10 Washer
F287
1/4-28 Keps Nut
F385
1/4 x 1-1/4 Roll Pin
F395
1/4-20 x 2-1/4 FHA Screw, SS
F396
10-24 x 1-1/4 PPH Bolt
F398
1/4-20 x 2 Hex Bolt
F399
1/2-13 x 3-1/4 Hex Bolt
F402
1/4-20 x 2 PFH Bolt
F405
3/8-16 x 1-1/2 FHA Screw, SS
F420
5/16-18 x 1-1/4 Carriage Bolt
F440
1/2-20 Jam Nut RH
F441
1/2-20 Jam Nut/Left Hand
F562
5/16-18 x 1 Set Screw
F570
3/8-16 Flange Top Lock Nut
*
Model MTL Only
**
Model MDD Only
***
Not Used on MT30i
∆
Use Optional Shim as Needed to Close
Gap With Chassis Frame
Use only genuine Walker
NO.
REQ'D
2
2
1
2
1
1***
∆
1
10
2
8
15
12
2
1
2
4
6
6
2
2
6
4
3
2
1
2
1
2
4
4
2
2
2
5
6
2
1
4
2
2*
2
2**
1
1
2
2
1
4
Beginning S/N 2018-5524
replacement parts.
®
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