TR-MAN-4500-A
Operator's Manual - 4000M 4500M
Page 42 of 46
Hydraulic Control Valve Adjustment
The 4000M / 4500M model drag hose reels are equipped with a single hydraulic
valve to control the drive system. This valve provides two (2) operating positions and is
actuated by a push-rod-bell crank system driven by the shut-off bar (at the rear of the
machine). The shut-off bar remains in the up (latched) position to pull out the hose and
is lowered down to retrieve the hose. When the tractor hydraulic system is engaged,
the drum will rotate to retrieve the hose.
If the hydraulic system does not function as described above, adjustment of the
valve arm push-rod should restore proper function. (see Drive System parts drawing on
page 32 for terminology)
•
pull out approximately 100-200 feet of hose
•
couple the hydraulic hoses to the tractor
•
disconnect the adjusting pushrod from the shut-off bar
•
move the shut-off bar to the ‘down’ position, resting on the stop blocks
•
manually rotate the control valve arm rearward (clockwise) until the valve
handle travel limit is reached (see Figure 24)
•
adjust the length of the adjusting pushrod to allow the ball joint stud to be
inserted squarely in the hole on the shut-off bar
CAUTION – DO NOT adjust the pushrod assembly too short. If too much
pressure is applied to the valve stem, irreparable damage will occur,
requiring replacement of the valve.
•
after completing the adjustment, raise the shut-off bar to the latched position
•
engage the tractor hydraulics
•
lower the shut-off bar to test the adjustment, fine tune as required
•
drum should stop rotating as the shut-off bar is raised
Figure 24 - Valve in Rewind Position
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Figure 25 - Valve in STOP Position
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