TM-5-2330-378-14-P
SEMITRAILER, LOWBED: 40 TON CONSTRUCTION EQUIPMENT TRANSPORTER M870 AND M870A1
TECHNICAL MANUAL; OPERATOR'S, UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
JUNE 1999
TM-5-2330-378-14-P - Page 232 of 524
TM5-2330-378-14&P
SectionVIll.WHEELS,HUBS,ANDBRAKEDRUMSMAINTENANCE
Paragraph
Page
Number
ParagraphTitle
Number
4-67
General
.......................................................................................................................................
4-144
4-68
Hub and Brakedrum Maintenance (M870)
...................................................................................
4-144
4-69
Hub and Brakedrum Maintenance (M870A1)
..............................................................................
4-150
4-70
Wheel and Tire Repair (M870 and M870A1)
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4-154
4-67. GENERAL.
This section provides information for performing Unit level wheel, hub, and brakedrum repairsonthe
M870 and M87OA1
semitrailers.
4-68. HUB AND BRAKEDRUM MAINTENANCE (M870).
This Task Covers:
a.
Removal
b. Cleaning and Inspection
c.
Installation
Initial Setup:
Tools/Test
Equipment:
* Gasket (Item 5, Appendix
1)
• Common no. 1 tool set (Item 6, Appendix B)
* Gasket (Item 6, Appendix 1)
• Tool kit, general mechanic's:
automotive
9 Lockwasher (6) (Item 13, Appendix 1)
(Item 7, Appendix B)
#Washer (Item 38, Appendix 1)
Materials/Parts:
Equipment
Conditions:
• Rag (Item 15, Appendix
F)
Tire and wheel assembly removed (para 3-9).
• Solvent, drycleaning (Item 19, Appendix F)
a.
REMOVAL
1.
Remove vent plug (1) from window (2).
2.
Remove six screws (3) from retainer ring (4).
3.
Remove retainer ring (4), window (2), and gasket (5) from access cover (6). Discard gasket.
4.
Remove six screws (7) and lockwashers (8) from access cover (6). Discard lockwashers.
5.
Remove access cover (6) and gasket (9) from hub (10). Discard gasket.
4-144
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