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 308 of 524
TM 5-2330-378-14&P
5-18.
LOWERLINKASSEMBLYREPLACEMENT
(M870A1).
ThisTaskCovers:
a.
Removal
b.
Installation
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
• Common no. 1 tool set (Item 6, Appendix 13)
Gooseneck in upright position (para 2-8).
• Crane, wheel mounted (Item 2, Appendix 13)
• Field maintenance
tool set (Item 4, Appendix 13)
Personnel Required:
Two
• Tool kit, general mechanic's:
automotive
(Item 7, Appendix 13)
Materials/Parts:
* Cotter pin (3) (Item 3, Appendix 1)
a. REMOVAL
1.
Using crane, lift front of semitrailer.
2.
Place two one-foot-high wood blocks (1) under two landing pads (2). Lower front of semitrailer onto blocks
0).
3.
Remove two cotter pins (3) from two hinge pins (4). Discard cotter pins.
4.
Remove two retaining rings (5) from two hinge pins (4).
WARNING
Do not work under gooseneck unless lockpins are in place. Working under goose-
neck when lockpins are not in place could result in injury or death.
5. Remove two lockpins (para 2-10).
6.
Lower front of semitrailer until gooseneck (6) is fully extended.
WARNING
Placement of jacks is extremely important in this procedure. Failure to place jacks
properly could result in injury or death.
7.
Place hydraulic jacks under front and rear ends of upper deck side rail (7).
8.
Raise hydraulic jack at front end of upper deck side rail (7) until gooseneck (6) starts to lift.
9.
Raise hydraulic jack at rear end of upper deck side rail (7) until two hinge pins (4) can be turned with pipe
wrench.
10.
Using dolly jacks, support lower link assembly (8) at each end.
it.
Remove two hinge pins (4) from lower link assembly (8).
12.
Using dolly jacks, lower and remove lower link assembly (8) from gooseneck (6).
5-46
Back to Top
