Great-plains DVN8324 Operator Manual User Manual Page 55
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- Table of contents
- TROUBLESHOOTING
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Great Plains Manufacturing, Inc. Maintenance and Lubrication 51
11/25/2013 550-466M
Refer to Figure 48
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 48.
Refer to Figure 49
19. Remove self-adjuster cotter pins . Release self-
adjuster pawl and remove adjuster .
20. As necessary, disassemble adjuster for cleaning.
Inspect adjust pawl and rack for wear and damage.
Great Plains recommends replacing the entire
adjuster if any parts are worn or damaged.
21. Apply thin film of Lubriplate® 110 or similar to self-
adjuster.
Do not allow any lubricants to come in contact with new brake
linings.
22. Release upper spring between shoes (was under
self-adjuster), and release lower spring between
shoes.
23. Loosen nuts on lower shoulder bolts. Push brake
shoes outward at bottom (to allow removal of hand
brake arms).
24. Disconnect hand brake line by uncoupling the brake
arm link at the clevis pin (not shown).
25. Release lower spring between hand brake arms.
If this spring differs from the shoe springs, set the
parking brake spring aside.
26. Remove hand brake arm assembly . Place
spring with it.
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 48
Brake Shoe ID & Thickness
29643
8
9
8
9
1
2 3
Figure 49
Brake Spring Removal
29642
1
2
7
3
5
4
6
8
9
4
5
6
7
8
9
8
- Operator Manual 1
- Table of Contents Index 2
- Table of Contents 3
- Equipment Identification 5
- Machine Record 6
- Introduction 7
- Description of Unit 7
- Using This Manual 8
- Owner Assistance 8
- Important Safety Information 9
- Wear Protective Equipment 10
- Use Safety Chains 10
- Avoid High Pressure Fluids 10
- Keep Riders Off Machinery 10
- Tire Safety 11
- Use Safety Lights and Devices 11
- Transport Machinery Safely 11
- Shutdown and Storage 11
- Practice Safe Maintenance 12
- Safety At All Times 13
- Accident Prevention 13
- Safety Decals and Lights 14
- Reflectors: Fluorescent Panels 15
- Reflectors: Red 15
- Reflectors: Orange 15
- EXCESSIVE SPEED HAZARD 16
- Danger: Crush 17
- Danger: Electrocution 17
- Warning: Wing Crushing 18
- Warning: High Pressure Fluid 18
- Warning: Hand Pinch 18
- 848-530C REV A 18
- Caution: Read Operator Manual 19
- Caution: Tires Not A Step 19
- Notice: Transport Lock 19
- Danger: Cutting of Foot 19
- Preparation and Setup 20
- 11/25/2013 550-466M 21
- Clevis Hitch 22
- Category III Hitch 22
- Electrical Hookup 23
- Brake Hook-up (Option) 24
- Air Brake Hook-up 25
- Hydraulic Brake Hook-up 26
- Operating Instructions 27
- Unfolding and Folding 28
- Unfolding 30
- 550-466M 11/25/2013 32
- Lowering 33
- Transporting the Discovator 35
- Brake Operation (option) 37
- Transport 39
- Field Operation 40
- First Time Field Adjustments 41
- Side to Side Leveling 42
- Disc Gang Depth Calibration 42
- Scraper Settings 43
- Rear Attachment Settings 44
- Coil Tine Settings 45
- Reel Settings 45
- Unfolded Storage 46
- Maintenance and Lubrication 47
- Maintenance Lift Lock 48
- Wheel Bearing Hub 49
- All Hinge Points 49
- Brake Maintenance (Option) 50
- Air Brake Maintenance 52
- Brake Shoe Replacement 54
- Brake Drum Maintenance 58
- Mounting Wheels 59
- Test and Adjust Brakes 59
- Troubleshooting 60
- Coulter/Disc Gang Performance 61
- General Performance 61
- Sweep/Shank Performance 62
- Brakes (Option) 63
- Problem Causes Solutions 64
- Retract Kit (Option) 65
- Appendix 66
- Torque Values Chart 67
- Tire Inflation Chart 68
- Appendix 65 69
- Appendix 67 71
- Warranty 73
- Salina, Kansas 67402-5060 USA 78
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