GREAT PLAINS TCN5107, Руководство оператора, Страница: 60 / 78

Great Plains | 566-170M | 04/26/2019 Table of Contents Index 54
TCN5107-5313 Table of Contents Index Maintenance and Lubrication
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 spindle.
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 separated. 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 hardware.
Check for wear or damage to holes, pins and springs.
Check for weak springs. Springs must completely retract
shoes when brakes are released.
 Sound practice is to replace springs when replacing
brake shoes.
18. Check wheel cylinder for evidence of leaks.
If no parts need replacing, skip to step 49.
Refer to Figure 51
19. Remove self-adjuster cotter pins
. Release self-adjuster
pawl and remove adjuster .
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
1
2 3