Hiniker 7802, 7902, 10331 Operator's Manual
PICKUP TRUCK SNOWPLOW
POLY MOLDBOARD TRIP EDGE PLOW
Models 7802, 7902
OPERATOR’S MANUAL
DO NOT USE OR OPERATE THIS EQUIPMENT UNTIL THIS MANUAL
HAS BEEN READ AND THOROUGHLY UNDERSTOOD
PART NUMBER 25012988
Table of Contents 1
TABLE OF CONTENTS
25012988 6/11 Hiniker/25012988
TO THE PURCHASER .................................................................................................................. 2
SAFETY ......................................................................................................................................... 3
OPERATING PROCEDURES ....................................................................................................... 4
TROUBLE SHOOTING ................................................................................................................. 9
MAINTENANCE ...........................................................................................................................11
ASSEMBLY ................................................................................................................................. 13
SYSTEM CHECKOUT AND JOYSTICK CONFIGURATION ....................................................... 22
HEADLAMP AIMING PROCEDURES ......................................................................................... 23
ELECTRICAL CIRCUIT ............................................................................................................... 24
HYDRAULIC CIRCUIT ........................................................................................................... 26-27
SPECIFICATIONS ....................................................................................................................... 28
WARRANTY ................................................................................................................................ 29
2 To The Purchaser
TO THE PURCHASER
This product is designed and manufactured to
give years of dependable service, when properly maintained and used for the purpose for
which it is intended. Never allow anyone to operate this equipment until they fully understand
the complete contents of this manual. It is the
responsibility of owners who do not operate this
equipment to ensure the operator is properly instructed and understands the contents of this
manual. It is also the owner’s responsibility to
ensure that anyone operating this equipment is
mentally and physically capable of so doing.
Important information is contained in this manual to help ensure safe and efficient operation.
If you have any questions about this manual, or
the equipment discussed herein, contact your
Hiniker dealer.
This is a safety alert symbol. It alerts
an operator to information concerning
personal safety. Always observe and
heed these instructions, otherwise death or
serious injury can result.
Your plow’s identification number decal is at location (1) in the following illustration.
DWG NO. 6066
Record the following information for later reference
when obtaining service parts:
Purchase Date ____________________________
Purchaser’s Name _________________________
All references to LEFT or RIGHT are defined as
viewing the plow from the cab of the truck.
This Operator’s manual is shipped with this
equipment. Contact your Hiniker dealer for additional copies.
Always obtain original Hiniker service parts.
Substitute parts could adversely affect equipment performance and warranty.
Check that your dealer has forwarded to Hiniker
company the delivery report form along with the
plow identification number because it helps to
maintain maximum service and warranty benefits. This does not put you on any mailing list,
and information thereon is not available to others.
Dealer’s Name ____________________________
Machine Serial No._________________________
SAFETY
Safety 3
This is a safety alert symbol. It alerts
an operator to information concern-
ing personal safety. Always observe
and heed these symbols and instructions,
otherwise death or serious injury can result.
Operator safety is a principle concern in equipment design and distribution. However, many
accidents occur because a few seconds of
thought, and a more careful approach to handling, were ignored.
Accidents can be avoided by knowing and following the precautions cited in this manual.
GENERAL SAFETY
1. Read this manual thoroughly. Make sure
the operator understands it and knows
how to operate this equipment safely. This
equipment can kill or injure an untrained or
careless operator and bystanders. If you
sell this equipment, ensure the new owner
acknowledges receipt of this manual.
BEFORE OPERATION
1. Discipline yourself to visually check for
worn, damaged or cracked parts before
starting use. Replace these with genuine
Hiniker parts.
2. Escaping hydraulic oil under pressure can
penetrate the skin, causing serious injury.
Do not use your hand to check for leaks.
Use a piece of paper or cardboard to nd
suspected leaks.
Tighten all connections before pressurizing
hydraulic lines.
If uid is injected into the skin, get medical
attention immediately to prevent serious infection.
3. Check all controls and operating functions
of the machine in a safe area before starting to work.
2. This plow is intended for plowing snow
only. Plowing gravel, rocks, etc., or using
the plow for any purpose other than plowing
snow could result in harm to the operator or
bystanders or cause damage to the plow or
vehicle.
3. Do not service or otherwise handle a plow
in the raised position unless it is securely
blocked against unexpected falling.
4. Do not attempt to handle or service this
equipment, and direct others to do the
same, unless you know how to do it safely
and have the proper tools for the job.
5. Keep hands, feet, hair, and clothing away
from moving parts.
6. Do not alter the equipment.
DURING OPERATION
1. Always wear seat belts when operating a
motor vehicle.
2. Ensure everyone is clear of the machine,
especially away from blind areas of the operator, before starting, actuating hydraulics
or operating this equipment.
3. Do not plow snow at excessively high
speeds.
4. Avoid hitting objects that will damage your
plow or truck.
5. Set the brakes and stop the truck’s engine
before adjusting or servicing your plow.
AFTER OPERATION
1. Park the plow on a solid, level surface. Fully
collapse the lift cylinder with the upper lift
links before unhitching the plow to prevent
the plow frame from falling forward.
4 Operating Procedures
OPERATING PROCEDURES
ATTACHING THE PLOW
Attachment prongs on the truck should be
mounted such that the bottom edge of the
prongs measure about 10 inches above the
ground. Prong receivers on the plow frame
should remain parallel to the ground and at the
correct height by fully retracting the lift cylinder
with the upper lift links before removing the plow
from the truck (See “Removing the Plow”) Ideally, the prongs on the truck should lift the plow
frame slightly when driving into the plow for attachment.
Powdered graphite applied on the prongs will
help the plow slide on and off more easily.
Check that prongs are in line with the receivers before driving into the plow. Set the parking
brake in the truck to prevent it from creeping
back out from the receivers.
Handle Pinned With Plow On Truck DWG NO. 6721
Pin the handle in the clevis with its klik pin.
Failure to pin the handle in place may allow
the plow to fall off the truck.
NOTE: Before connecting the plow’s wiring to
the truck, make sure power is switched “Off”
on the joystick controller.
Remove the tab lock pin from the parking stand
index plate to raise the stand to its highest position. Reinstall the pin in the plate for transport.
Pull the latch handle into the clevis on the lift
frame to force the sliders through the notches
in the prongs and receivers. Check that both
sliders are fully engaged.
DWG NO. 5617A
Alignment Tab and Slot DWG NO. 6697
Plug in the two electrical connectors between
the plow and the truck after latching the plow.
The alignment tab on the 16-pin plug will
mate with the slot on the mating receptacle to
ensure proper connection.
Operating Procedures 5
Check that the plow headlamps and turn signals
are operational, and headlamps are aimed correctly. Test the lift and angling cylinders in a safe
area before using the plow.
To make alignment of the plow easier in the future,
mark a point on the back of the head lamp, a point
on the hood near the front of the truck and a point
on the windshield that are in line when you are
seated behind the steering wheel. Line up these
three points when driving into the plow.
THE JOYSTICK CONTROLLER
The joystick control box has slide switches for controlling power to the snowplow and for switching
from the truck headlights to the headlights on the
plow.
The joystick controller raises and lowers the plow
and angles the blade left or right.
NOTE: Drawings 4176 and 4177 show the raise
and lower functions of the joystick controller as
received from the factory. Functions may be reversed to suit the preference of the operator by
following the instructions on page 22 for switching
the controller joystick and face plate.
NOTE: When removing the plow, remember to
place the headlight switch in the “Truck” position
to return power to the truck’s headlights.
Raise or lower the plow by moving the joystick to
the “Raise” or “Lower” position. Hold the plow at
an intermediate height by releasing the controller
from the “Raise” position when the plow reaches
the desired height.
Moving the controller to the “Lower” position will
lower the blade to the ground and allow the plow to
“Float” along the contour of the ground while plowing snow.
A yellow light on the control box indicates the plow
is in the oat mode. Momentarily moving the joystick to the “Raise” position will remove the plow
from the oat condition and the yellow indicator will
return to green.
Move the joystick left or right to angle the blade.
Release the joystick when the blade is at the desired angle.
TRANSPORTING THE PLOW
The vehicle’s electrical power must be turned on
before the control box will function.
Joystick Control Box DWG NO. 4176
Place the on/off switch on the joystick control box
in the “On” position to supply power to the snowplow. A green light will indicate power is on.
Move the headlight slide switch on the control box
to the “Plow” position to change from the truck lights
to the snowplow lights. Activate high beam/low
beam and turn signal/parking lamps from the truck
as you normally would without the plow attached.
The extra weight of the snowplow on your truck
will impair handling response and increase braking
distance.
The plow will also block some airow to the vehicle’s cooling system, possibly causing the vehicle to overheat. Therefore, it is important not to
exceed speeds above 45 mph when the plow is
attached.
Remove the plow if you must drive your truck for
long distances when the temperature is warm.
Raise the blade to a position where it will not interfere with the headlights before driving.
Transport the plow with power to the joystick control box switched off to prevent accidental lowering
of the plow.
Never adjust the blade height or angle the blade
while driving.
6 Operating Procedures
PLOWING SNOW
WARNING: Always wear a seat belt
when plowing snow. Sudden contact
with a hidden object can result in seri-
ous personal injury.
Inspect areas to be plowed before snowfall for
potential hazards, and mark obstructions with
stakes that will be seen when snow covers the
ground. Identify any emergency equipment and
utility outlets that may need to be cleared in the
event of a storm. Prepare a plan beforehand for
clearing snow from tight or enclosed areas and
locate sites for stacking snow.
Adjust the skids at the back of the moldboard
according to the surface to be plowed. The bottom of the skids should be about 1/2” below the
cutting edge when plowing gravel roads or lots.
Skids should be even with the cutting edge on
hard surfaces such as asphalt or concrete.
snow until a working area is cleared. Work small
areas in multiple passes to push snow to outer
edges. Generally, 6 inch snow can be plowed
with the entire blade width; 9 inch snow with
3/4 of the blade width; 12 inch snow with 1/2 of
the blade width. Local conditions will determine
how much work can be done before stalling or
getting stuck.
PARKING
Lower the plow to the ground when parking your
truck for a long period of time with the plow attached. Place the on/off switch in the “Off” position to prevent the plow from drawing power
from the truck battery. The plow’s power unit
may continue to draw electrical current from the
truck battery if the control switch is left on; possibly resulting in insufficient charge to start the
truck.
REMOVING THE PLOW
Always plow snow as it is accumulating. Wet
snow may weigh about 12 pounds per cubic
foot. The weight of snow being pushed by your
plow may increase to several tons.
Allowing snow depth to grow to unmanageable
levels can cause difficult removal problems and
can be costly in terms of wear on equipment.
WARNING: Serious personal injury
can result from plowing at excessive
speeds, as well as costly damage to
equipment and property, if an obstruction is
encountered while plowing. Do not exceed
10 mph while plowing.
Plow snow in the lowest truck gear to transfer
maximum power to the cutting edge. Clear areas in front of buildings first. Back drag snow
away from buildings by driving to the building
with the plow raised, then dropping the blade to
pull snow away from buildings.
Clear large lots by angling the blade and creating a single path. Roll snow to outer edges
of the lot by taking successive passes with the
blade angled.
When plowing very deep snow, it may be necessary to raise the blade and shear off layers of
To remove the snowplow from your truck, park
on a solid level surface with the blade straight.
Lower the plow to the ground and leave the controller in the “Float” mode.
Lower Plow, Leave Controller in “Float” DWG. NO. 4177
NOTE: The plow control box must be in the
“Float” mode to move the cylinder rod. If the cylinder rod does not retract with power on and the
controller in float, loosen the packing nut on the
lift cylinder up to 1-1/2 turns to reduce friction.
With the plow lowered to the ground and the
controller in the ”float” mode, push down on the
upper lift links to fully retract the lift cylinder rod.
Retracting the lift cylinder will orient the prong
receivers correctly for reattaching the plow later.
Failure to retract the lift cylinder rod will allow
the lift frame to fall forward, possibly causing
personal injury or damage to plow components.
Retract Cylinder With Upper Lift Links DWG NO. 6000
Operating Procedures 7
Push Lift Frame Back DWG NO. 6005
Swing the latch handle open until the latch
sliders are fully removed from the attachment
prongs.
Rotate the stop plate up to contact the spacer
bushing on the lift cylinder bolt.
Rotate Stop Plate DWG NO. 6004
Gently push back on the headlight bracket to
tilt the lift frame back as far as possible, then
release the bracket to allow the weight of the lift
frame to lock the stop plate in place.
Swing Handle To Remove Sliders DWG NO. 6722
Lower the parking stand to the ground by removing the tab lock pin from stand index plate, then
swinging the stand to the ground with the lever.
Lower and Pin Parking Stand DWG NO. 5251A
Reinstall the pin in the index plate through the
hole in the lever to hold the stand in place.
8 Operating Procedures
Disconnect the electrical connectors by pulling
them straight out from the receptacles. Do not
twist the connectors, twisting will damage the
connector pins or the wiring harness.
Place dust caps on connectors to prevent contamination.
Disconnect Plugs DWG NO. 6698
Back inside the truck, return control of the headlights to the truck and switch power off on the
snowplow control box, then slowly back the
truck out from the plow.
Turn Off Lights and Power DWG NO. 4164
NOTE: The stop plate will automatically fall forward as soon as the lift cylinder is fully extended for raising the blade prior to transporting the
plow.
If the snowplow won’t be used for an extended
period of time, the prong weldment can be removed from the truck by removing the hex bolts
that fasten it to the truck mount frame.
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