Great Plains TCN5313 Operator Manual - Manual (Page 58)

54 TCN5107-5313 Great Plains Manufacturing, Inc.
566-170M 03/17/2014
Refer to Figure 49
10. Remove hub/drum assemblies:
Remove the dust cap .
Remove the spindle cotter pin .
Remove the spindle nut .
Remove the spindle washer .
11. Carefully pull hub and drum assembly from spin-
dle. Outer bearing may fall loose.
12. Inspect inner seal , bearings, hub and drum for
wear and damage - for drum, see “Brake Drum
Maintenance” on page 58).
13. Keep inner and outer bearing components sepa-
rated. They are different parts.
Refer to Figure 50
14. Inspect brake shoe
origin. See Warning at right.
Great Plains supplied shoes are stamped “AL-KO”
on the web face and have bonded linings.
15. Clean brake dust from assembled parts, and from
individual parts as removed.
16. Inspect brake linings . Check for 1.6mm ( 1 ⁄
16
in)
minimum thickness (exclude thickness of shoe pad),
and absence of grease, contamination, deep scores,
chipping, or excessive heat fractures. Hairline heat
fissures are not unusual and do not require shoe
replacement.
17. Inspect brake shoe retaining and operating hard-
ware. Check for wear or damage to holes, pins and
springs. Check for weak springs. Springs must com-
pletely retract shoes when brakes are released.
Note: Sound practice is to replace springs when replac-
ing brake shoes.
18. Check wheel cylinder for evidence of leaks.
If no parts need replacing, skip to step 49.
Figure 49
Hub Removal
29642
2
3
4
5
6
7
8
2
3
4
5
6
7
8
Part Failure Hazard:
Do not substitute parts. Incorrect or substandard parts can
cause brake malfunction or failure, resulting in death, serious
injury or property damage. Always re-assemble brakes with
either the removed parts (if serviceable) or Great Plains parts
as specified in the Parts Manual (550-466P).
Figure 50
Brake Shoe ID & Thickness
29643
8
9
8
9