Lit. No. 41298, Rev. 01 February 15, 2019
11
2. Turn the quill IN (clockwise) to decrease drop
speed. Turn the quill OUT (counterclockwise)
to increase drop speed.
3. Stand 8' clear of the blade when checking
adjustment.
OPERATIONAL TEST AND FINAL ADJUSTMENTS
FILLING HYDRAULIC UNIT
1. Attach the snowplow to the vehicle according to
the instructions on the back of the blade.
The HT Series™ snowplow hydraulic system
comes pre-assembled, fi lled, and fully tested
from the factory.
2. Remove factory installed pipe plug. Reservoir
fl uid level should be within 2-1/2" from the top of
the fi ll hole. If additional fl uid is needed, fi ll the
reservoir with FISHER
®
EZ Flow Hydraulic Fluid
to –40°F (–40°C), or other fl uid conforming to
Military Specifi cation MIL-H-5606A, such as
Mobil Aero HFA or Shell AeroShell
®
Fluid 4.
3. Replace with breather/fi ll plug (included in
parts box).
WARNING
Keep 8' clear of the blade when it is being
raised, lowered, or angled. Do not stand
between the vehicle and blade or directly
in front of blade. If the blade hits or drops
on you, you could be seriously injured.
WARNING
To prevent accidental movement of
the blade, always turn the control OFF
whenever the snowplow is not in use. The
power indicator light will turn OFF.
CAUTION
Do not mix different types of hydraulic
fl uid. Some fl uids are not compatible and
may cause performance problems and
product damage.
FLUID CAPACITY
• Insta-Act
®
Unit Reservoir 1-3/4 qt
• Insta-Act System Total 2-3/8 to 2-3/4 qt
Drain
Plug
Breather/Fill Plug
BLADE DROP SPEED ADJUSTMENT
The quill in the valve manifold adjusts the blade
drop speed.
1. Lower the blade to the ground before making
adjustment.
WARNING
Keep 8' clear of the blade when it is being
raised, lowered, or angled. Do not stand
between the vehicle and blade or directly
in front of blade. If the blade hits or drops
on you, you could be seriously injured.
Quill
FINAL ADJUSTMENTS
1. With the snowplow attached to the properly
ballasted vehicle and the blade lowered to the
ground, the A-frame should be parallel with the
ground.
2. Fully angle the blade in raised and lowered
positions. Adjust hose fi ttings and wraps so
that hoses do not contact vehicle bumper, have
no sharp bends, and are wrapped at contact
points with headgear and blade.
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