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 311 of 524

TM 5-2330-378-14&P

5-19. GOOSENECKHINGEPIN REPLACEMENT(M870)(continued).

WARNING

Beforeremovinghingepin,the partbeingfreedmustbe supported.If hingepinis

beingremovedfromlowerlinkassembly,supportendof lowerlink assemblywith

dollyjack. If hingepinis beingremovedfromdeckassemblyarm,deckassembly

mustbe supportedbyoverheadhoist. Failuretodosomayresultininjuryordeath.

12.

Screw rod of slide hammer into nut (10). Using slide hammer, remove hinge pin (5) from lower link assembly

(12) or deck assembly arm (13).

13

6

0

8

12

5

6

7

3

11

4

b.

INSTALLATION

5

1 .

Drive new hinge pin (5) into lower link assembly (12) or deck assembly arm (13).

2.

Install lubrication fitting (9) in hole (11) in hinge pin (5).

3.

Using crane, raise gooseneck (6) to upright position.

4.

Install two lockpins (para 2-8).

5.

Remove hydraulic jacks from underside rail (8).

6.

Install retaining ring (3) on hinge pin (5) behind semitrailer frame (4) and weld (refer to TC 9-237).

:Zo

@'0@0

5@

1

2

7nz'_'@

-7

r;z@

6@7

7.

Using crane, lift front end of semitrailer. Remove wood blocks (1) from under landing pads (2).

FOLLOW-ON TASKS:

Lower gooseneck (para 2-10).

5-49