Straight Blade Fluid Fill

Straight Blade Fluid Fill
Hydraulic Power Unit Fill Procedure
Hydraulic Power Unit Fill
Procedure
4. With the plow in the raised position, cycle through
both angle functions several times.
5. Lower the plow to the ground.
Note: If your plow will not lower, Flow Control Valve
(30D) is completely closed. Refer to Step 8 to adjust
Flow Control Valve (30D).
6.
FULL
Figure 37. Oil Full Level
G00000
Plow Position to Check Oil: The plow should be
attached to the truck, setting flat on the ground, with
the blade in the straight position.
Figure 36. External Fill – Backside View
G10124
Step 1 of the following fill procedure is intended for a
new plow with an empty hydraulic system.
Initial Plow Position: Start with the plow un-attached
from the vehicle and the lift cylinder completely
collapsed. The light tower will be tilted forwarded.
1. Remove HYD04810 Fill Cap (20F) from
HYD04809 Street Elbow (20G) and fill with Boss
High Performance Hydraulic Fluid. Continue to fill
Street Elbow (20G) until no more fluid will be
accepted. (Approx. 2 quarts.)
2. Attach the plow to the vehicle.
Note: If your plow is equipped with SmartHitch 2™
you must hydraulically power the light tower up. Do
not manually push the tower up. Failure to
hydraulically power the light tower up will create an air
pocket in the hydraulic system. Oil will spill out of
your internal filler cap.
3. Raise the plow.
7. With the blade in the straight position and the
plow lowered to the ground, check the fluid level.
Fluid should be visible in the external fill port. If
fluid is not visible, fill until visible. Your reservoir
should now be properly filled.
Note: If your plow is equipped with SmartHitch 2™
you must hydraulically power the light tower down.
Do not manually pull the light tower down. Failure to
hydraulically power the light tower down will create an
air pocket in the hydraulic system. Oil will spill out of
your internal filler cap.
WARNING: When adjusting Flow Control Valve
(30D) make sure all appendages are clear of the
plow blade and observers are standing a safe
distance away from the plow blade. The plow may
drop if your controller is in the FLOAT position.
Make sure your controller is in the OFF position
before attempting to adjust the plow. Failure to
follow this warning could result in bodily harm.
8. Adjust Flow Control Valve (30D) to obtain the
speed desired for lowering the plow by loosening
the jam nut, then adjusting the set screw.
Counter-clockwise adjustment will increase the
speed the plow descends. Retighten the jam nut
when the desired speed is obtained.
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