Great-plains DVN8324 Operator Manual User Manual Page 50
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- Table of contents
- TROUBLESHOOTING
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46 8315-8324DVN Great Plains Manufacturing, Inc.
550-466M 11/25/2013
Brake Maintenance (Option)
Brakes are self-adjusting, but there are several mainte-
nance items:
page 46 - Brake Line Charge and Bleed
page 48 - Air Brake Filter Cleaning
page 48 - Brake Drum and Liner Maintenance
Brake Line Charge and Bleed
Prior to first use, and after replacing any components
that carry brake fluid, and during periodic flushing of the
brake system, the brake lines need to be bled.
1. Spot the machine on a level surface at a safe dis-
tance from any ignition sources (brake fluid is flam-
mable). Unless conditions are dry and calm, use a
sheltered area, to keep moisture and contaminants
out of brake fluid. Leave the tractor hitched to pro-
vide braking action to systems.
2. Unfold the machine and block the machine tires to
prevent movement. Do not set the machine’s own
parking brakes, as this restricts cylinder movement.
3. Put tractor in Park. Do not set tractor parking brake if
it also operates trailer brakes.
Refer to Figure 37 (which depicts air brake system - reservoir
for hydraulic brake system is similar)
4. Clean and dry top of master cylinder reservoir .
5. Remove cap and keep free of contaminants.
Drain Hydraulic Brake Lines
6. If draining brake system:
A. Remove drain plug at rear of reservoir and empty
reservoir. Re-secure plug.
B. Start at an outside hub for the following steps.
C. Connect recovery tubing to the bleeder valve ,
Refer to Figure 38, above the brake line. Unscrew
valve to open line.
D. Operate tractor brakes to cycle machine system.
Continue until no fluid flows at hub.
E. Close valve, and repeat step C and step D for the
other outside hub, then the inside hubs.
Refer to Figure 39 (which depicts air brake system - tee for hy-
draulic brake system is similar)
F. Disconnect center port of brake line tee . Cycle
brakes until no fluid flows. Re-secure tee.
Figure 37
Brake Master Cylinder
41874
1
Never re-use brake fluid. It is hygroscopic (formulated to
absorb water, which can damage system components if not
removed). Dispose of brake fluid per supplier instructions.
Figure 38
Brake Cylinder Bleeder Valve
29585
2
1
2
Figure 39
Brake Line Tee
41873
3
3
- 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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