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Fig. 5-19 C-Series Automatic Hydraulic Hose Connections
Hydraulic Flushing Instructions
To flush foreign matter from lines, use kerosene or
equivalent solvent.
To flush hydraulic lift valve, allow solvent to flow
through it.
To flush pump and motor, it is necessary to disassemble
and overhaul.
To flush implement cylinder, blow all oil out by pushing
cylinder rod in and out. Flush with solvent.
D-SERIES
Drive Line
The D-Series utilizes a flex coupling directly connecting
the engine and the hydraulic pump. Oil is directed through
a hydraulic manifold connecting the pump to a hydraulic
motor.
Brake/Motion Control Linkage
Fig. 5-20 D-Series, Friction and Neutral Adjustment
Motion Control Linkage Neutral Adjustment
Place the tractor on a level surface with engine running.
Depress the brake pedal and release. The tractor should not
creep and the rear wheels should be effectively locked.
5-7
SECTION 5
An access hole is provided in the right console panel for
the neutral adjustment.
If the tractor creeps when in neutral, adjust as follows:
1. Block the rear wheels off the ground.
2. Loosen the cap screw holding the eccentric assembly.
See Fig. 5-20.
3. Start the engine and run at half throttle. Allow drive
train to reach normal operating temperature.
4. Depress the brake pedal and release.
5. Rotate the eccentric until the rear wheels stop. (This
usually occurs at a point midway between forward and
backward wheel rotation.)
6. Retighten the cap screw while holding the eccentric
assembly from turning.
7. Increase engine speed to full throttle.
8. Move speed control lever in both directions and return it
to neutral with the pedal. (Repeat several ti mes and re-
adjust if necessary.)
If the brake band is severely out of adjustment (too
tight), proper neutral adjustment will not
be
possible
due to restricted brake pedal travel.
Loosen brake
band adjustment nut completely, make the neutral
adjustment, then adjust the brake band.
Detent Alignment Adjustment
After motion control has been adjusted for neutral, ad-
just the trunnion on the upper end of the control rod until
the control handle is in the neutral slot on the side panel.
See Fig. 5-21.
Motion Control Friction Adjustment
The motion control lever is friction-loaded to hold a
selected speed in either direction. If the lever does not re-
main where it is set during operation, the friction may be
increased by tightening the adjusting nut through the
access hole located in the right panel.
See Fig. 5-20.
The proper amount of friction is obtained when
approximately 16 to 20 lb. (3.6 to 4.5 N) of force at
the handle moves the control lever.
Fig. 5-21 D-Series, Motion Control Detent Adjustment
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