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Page Title: Section II. MAINTENANCE ALLOCATION CHART FOR CM150A/D475A AND CM225/D475A (Cont)
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Section II. MAINTENANCE ALLOCATION CHART FOR CM150A/D475A AND CM225/D475A (Cont)
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TM-5-3820-239-15 Drill Pneumatic Drifter: Boom-Type; Crawler-Mounted; Self-Propelled (Ingersoll-Rand Models CM150A/D475A and CM225/D475A) Manual
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Section III. TOOLS AND TEST EQUIPMENT FOR CM150A/D475A AND CM225/D475A

Section II. MAINTENANCE ALLOCATION CHART FOR CM150A/D475A AND CM 225/D475A
(1)
(2)
(3)
(5)
(6)
(4)
Maintenance Level
Direct  General Depot
Unit
Support Support
Tools and
Group
Maintenance
Equipment
Remarks
Number
Function
Ref Code
Code
Component/Assembly
C
O
F
H
D
5019  PNEUMATIC MOTOR
ASSEMBLIES
TRACTION DRIVE
SERVICE
.05
PROPELLING MOTORS
REPLACE
4.0
REPAIR
5.0
PROPELLING MOTOR
REPLACE
2.0
CONTROL ASSEMBLY
REPAIR
PNEUMATIC DRIFTER
SERVICE
0.5
DRILL MOTOR
INSPECT
0.3 0.5
REPLACE
2.5
REPAIR
4.5
74
CRANES, SHOVELS AND
EARTH MOVING
EQUIPMENT
7473
LIFT AND SWING
MECHANISM
BOOM FRAME AND
SERVICE
0.5 0.3
DRILL GUIDE
INSPECT
0.2 0.5
ASSEMBLY
REPLACE
3.0
REPAIR
2.0
4.0
DRILL MOUNTING
SERVICE
0.3
CENTRALIZER
INSPECT
0.2 0.2
REPLACE
1.0
REPAIR
1.0
7476
FEED AND LEVELING
MECHANISM
CHAIN AND GUIDE
SERVICE
0.3
ASSEMBLY
INSPECT
0.3
ADJUST
0.5
REPLACE
3.0
REPAIR
3.0
FEED MOTOR GEARBOX
SERVICE
0.5
ASSEMBLY
REPLACE
1.0
REPAIR
2.0
FEED MOTOR
INSPECT
0.5
REPLACE
1.0
REPAIR
1.0
38

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