Great Plains | 166-486M | 2019/01/29
78
Spartan
II
607
Maintenance
9. Slowly retract the circuit until fluid appears at a
fitting. Set the circuit to neutral and secure the
fitting. Repeat until all five fittings are secured.
10. Cycle the cylinders full stroke several times.
11. Use the tractor circuit to position the rod ends
and pin.
12. If no other bleeding is required, adjust the
transfer control valves back to their most recent
settings (or to the suggested default settings).
In-Line Hydraulic Filter
If folding/unfolding time slows noticeably, check the
in-line hydraulic filter and clean if needed. The
hydraulic filter is located at the inlet port of each
pressure valve.
1. Move the drill to typical field conditions. Unfold
the drill. Lower the openers. Turn on the fan and
bring up to normal field rpm.
2. Set fold circuit to float.
3. Shut down the tractor and remove the key.
4. Slowly loosen the hydraulic filter and relieve any
residual pressure in the line. When disconnecting
the hose, support the end to minimize fluid loss.
5. To disassemble, unscrew the end cap of the
hydraulic filter. Remove the top retaining washer
and screen.
6. Clean the filter screen with solvent and
compressed air, or replace if needed.
7. When reassembling put the screen into the
hydraulic filter. Place the retaining washer on top
of the hydraulic filter and screw on the end cap.
8. Install the hydraulic filter.
9. Activate the fold circuit. Cycle the lift and fold
systems several times. Check for leaks.
10. If there is any sign of air in the system, bleed the
Brake Maintenance
Possible Asbestos Hazard
If you are unable to confirm that you are
removing and installing ADR approved
parts, you may have linings that contain
asbestos. Some after-market brake shoes
may contain asbestos, and require strict,
complex and costly safety procedures not
covered in this manual.
Equipment Malfunction Risks
If brake shoe replacement is indicated, use
only parts supplied or recommended by
ADR. Unapproved parts may appear to fit,
but will not function correctly.
Inspecting the brakes may show a need to refinish
the drums and/or replace other brake parts. Although
not strictly part of brake maintenance, you may need
to repack the bearings (generally the outer), and it
may be necessary to replace a worn or damaged
inner seal and pack the inner bearing with fresh
grease.
For service of internal brake components, refer to
ADR parts and service information.
General Information:
http://www.adraxles.com/download
Parts Book:
http://www.adraxles.com/EN/res/429/ADR
Maintenance Manual:
http://www.adraxles.com/EN/res/439/ADR
Hydraulic Brakes Bleeding
1. Park the drill on a solid, level surface. Unfold and
lower the drill. Put the tractor in park, stop the
tractor engine, and take the key with you.
2. Chock both cart tires and both caster wheels to
prevent movement.
3. Block both gauge wheels to prevent movement.
4. Make sure the tractor transmission is in park.
Release the tractor parking brake.
5. Make sure the hydraulic line (1) for the brakes is
connected to the trailer brake port on the tractor.
6. Start the tractor engine. Apply
the trailer brakes
for five seconds to charge the emergency brake
accumulator. Stop the tractor engine.
7. Use the hairpin in the emergency valve (2) to
rotate the shaft clockwise. The shaft will close off
the brake system and then cause the
accumulator to pressurize the brake system.
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