6.8
A. Arm Mechanism or Roll Bar- without winch –
Single Mechanism.
1. Disengage the front mount pump or PTO.
2. Depress throttle advance and engage
mechanism control lever until cylinders bottom
out in extended position.
3. The pressure should read 1400 PSI +/- 100
PSI with cylinders extended.
4. If pressure is incorrect, make the necessary
adjustment by the following procedure;
a. Remove the cover nut which will expose
the adjustment screw on the tailgate valve
arm mechanism or roll bar section.
b. Pull spool out to adjust the relief on detent
cap end.
c. Push spool in to adjust the relief on spool
yoke end
d. Loosen lock nut.
e. Turn adjusting screw clockwise (in) to
increase the pressure or counterclockwise
(out) to decrease the pressure.
f. After proper pressure is attained, tighten
the lock nut and re-install cover nut.
.
OPTIONAL CONTAINER MECHANISM
ADJUSTMENT PROCEDURE
Install an accurate 3000 PSI gauge in the gauge port
in section of the body and tailgate valve tapped for a
1/4” NPT gauge connection. MAKE SURE GAUGE
HAS BEEN CHECKED FOR ACCURACY.
A. Winch
5. Disengage the front mount pump or PTO.
6. Remove the hoses or tubes and fittings
connecting the valve to the winch at the
tailgate valve ports.
7. Install o-ring plugs (3/4” – 16) in two of the
tailgate valve ports.
8. Engage the front mount pump or PTO.
9. Depress throttle advance and move the winch
control lever in both directions.
10. The pressure should read 1400 PSI +/- 100
PSI for a 12,000 lb winch.
11. If pressure is incorrect, make the necessary
adjustment by the following procedure;
g. Remove the cover nut which will expose
the adjustment screw on the tailgate valve
winch section.
h. Pull spool out to adjust the relief on detent
cap end.
i. Push spool in to adjust the relief on spool
yoke end
j. Loosen lock nut.
k. Turn adjusting screw clockwise (in) to
increase the pressure or counterclockwise
(out) to decrease the pressure.
l. After proper pressure is attained, tighten
the lock nut and re-install cover nut.
12. Reconnect fittings, hoses or tubes if
applicable.
Printed in U.S.A.
©COPYRIGHT 1999, H.E.I.L.
ISSUED JULY 1999
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