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 236 of 524

TIVI5-2330-378-14&P

4-68.

HUBAND BRAKEDRUMMAINTENANCE

(M870)(continued).

C.

INSTALLATION

1.

Install two bearing cups (22 and 23) in hub (10) and seat using bearing replacer and hammer.

2.

Install inner bearing cone (21) in bearing cup (22).

3.

Press inner seal (20) in place. Place block of wood over seal and tap with hammer until inner seal (20) is

seated.

4.

Install hub (10) on brakedrum (16).

5.

Install 10 nuts (18) on 10 studs (19).

6.

Install hub (10) and brakedrum (16) on spindle (13).

7.

Place outer bearing cone (17) on spindle (13) and slide into bearing cup (23).

16

10

13

20 (;7

0

0

19

0

23

19

0

17

18

8.

Install inner spindle nut (15) on spindle (13) and torque to 50 ft-lb (67.8 N-m). Be sure pin (26) in inner spindle

nut (15) faces outward. Back off until hub (10) and brakedrum (16) turn freely.

9.

Put lockring (14) on spindle (13), and turn inner spindle nut (15) until pin (26) goes in nearest hole (27) in lockring

(14).

10.

Install new washer (11) and outer spindle nut (12) on spindle (13).

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