Fisher Engineering HD2 User manual

A DIVISION OF FISHER, LLC
CAUTION
Read this document before installing the
snowplow.
CAUTION
See your FISHER® outlet/website for specic
vehicle application recommendations before
installation. The eMatch tool has specic
vehicle and snowplow requirements.
HD2™ and HDX™ Snowplows
Installation Instructions
Fisher Engineering
August 15, 2017
Lit. No. 41775, Rev. 02
50 Gordon Drive, Rockland, Maine 04841‑2139 • www.sherplows.com
90750, 90800, 90850, 90900, 93800,
93900, 97200, 97200‑1, 97250(CH)
97250‑1(CH), 97300, 97300‑1

Lit. No. 41775, Rev. 02 2 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1

Lit. No. 41775, Rev. 02 3 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
SAFETY DEFINITIONS
NOTE: Indicates a situation or action that can lead
to damage to your snowplow and vehicle or other
property. Other useful information can also be
described.
Warning/Caution Label
CAUTION
Indicates a potentially hazardous situation
that, if not avoided, may result in minor or
moderate injury. It may also be used to alert
against unsafe practices.
WARNING/CAUTION AND INSTRUCTION
LABELS
Become familiar with and inform users about the
warning labels on the back of the blade and the
instruction label on the headgear.
NOTE: If labels are missing or cannot be read, see
your sales outlet.
WARNING
Indicates a potentially hazardous situation
that, if not avoided, could result in death or
serious personal injury.
Instruction Label

Lit. No. 41775, Rev. 02 4 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
HYDRAULIC SAFETY
• Always inspect hydraulic components and hoses
before using. Replace any damaged or worn parts
immediately.
• If you suspect a hose leak, DO NOT use your
hand to locate it. Use a piece of cardboard or
wood.
FUSES
The FISHER® electrical and hydraulic systems contain
several blade‑style automotive fuses. If a problem
should occur and fuse replacement is necessary,
the replacement fuse must be of the same type and
amperage rating as the original. Installing a fuse with
a higher rating can damage the system and could start
a re. Fuse Replacement, including fuse ratings and
locations, is located in the Maintenance section of the
Owner's Manual.
PERSONAL SAFETY
• Remove the ignition key and put the vehicle in
park or in gear to prevent others from starting the
vehicle during installation or service.
• Wear only snug‑tting clothing while working on
your vehicle or snowplow.
• Do not wear jewelry or a necktie, and secure long
hair.
• Wear safety goggles to protect your eyes from
battery acid, gasoline, dirt and dust.
• Avoid touching hot surfaces such as the engine,
radiator, hoses and exhaust pipes.
• Always have a re extinguisher rated BC handy,
for ammable liquids and electrical res.
WARNING
Hydraulic uid under pressure can cause skin
injection injury. If you are injured by hydraulic
uid, get medical attention immediately.
SAFETY PRECAUTIONS
Improper installation and operation could cause
personal injury and/or equipment and property damage.
Read and understand labels and the Owner's Manual
before installing, operating or making adjustments.
WARNING
Lower the blade when the vehicle is parked.
Temperature changes could change
hydraulic pressure, causing the blade to
drop unexpectedly or damaging hydraulic
components. Failure to do this could result in
serious personal injury.
WARNING
Remove blade assembly before placing
vehicle on hoist.
WARNING
The driver shall keep bystanders clear of
the blade when it is being raised, lowered or
angled. Do not stand between the vehicle and
the blade or within 8 feet of a moving blade.
A moving or falling blade could cause
personal injury.
WARNING
Do not exceed GVWR or GAWR including
blade and ballast. The rating label is found on
driver‑side vehicle door cornerpost.
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.
WARNING
Keep hands and feet clear of the blade and
A‑frame when mounting or removing the
snowplow. Moving or falling assemblies could
cause personal injury.
CAUTION
Refer to the current eMatch selection system
for minimum vehicle recommendations and
ballast requirements.

Lit. No. 41775, Rev. 02 5 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
NOISE
Airborne noise emission during use is below 70 dB(A)
for the snowplow operator.
VIBRATION
Operating snowplow vibration does not exceed
2.5 m/s2 to the hand‑arm or 0.5 m/s2 to the whole
body.
TORQUE CHART
FIRE AND EXPLOSION
Be careful when using gasoline. Do not use gasoline
to clean parts. Store only in approved containers away
from sources of heat or ame.
CELL PHONES
A driver's rst responsibility is the safe operation of
the vehicle. The most important thing you can do
to prevent a crash is to avoid distractions and pay
attention to the road. Wait until it is safe to operate
Mobile Communication Equipment such as cell phones,
text messaging devices, pagers or two‑way radios.
VENTILATION
BATTERY SAFETY
1/4-20 10
91
54
1/4-28 12
11
71
5/16-1
81
50 212
5/16-2
41
70 240
3/8-16 269 376
3/8-24 29
74
20
7/16-1442
96
06
7/16-20
9/16-12
9/16-18
5/8-11
5/8-18
3/4-10
3/4-16
7/8-9
7/8-14 47
46
69
64
49
091-8
1-12 70
49
95
1/2-13
1/2-20
11.9
13.7
24.6
27.3
43.6
26.9
53.3
93
148
49.4
69.8
77.9
106.4
120.0
8.4
9.7
17.4
19.2
30.8
35.0
49.4
55.2
75.3
85.0
M6 x 1.00
M12 x 1.75
M8 x 1.25
M14 x 2.00
M10 x 1.50
M27 x 3.00
M22 x 2.50
M30 x 3.50
M24 x 3.00
M20 x 2.5011.1
19.5
38.5
67
107
7.7
613
778
1139
1545
450
428
562
796
1117
M33 x 3.50
M36 x 4.00
2101
2701
1468
1952
325
M16 x 2.00 231167
M18 x 2.50 318222
Recommended Fastener Torque Chart
Size Size
Torque (ft-lb)
Grade
5
Grade
8
Metric Fasteners Class 8.8 and 10.9
These torque values apply to fasteners
except those noted in the instructions.
Torque (ft-lb)
Grade
5
Grade
8
Size Size
Torque (ft-lb)
Class
8.8
Class
10.9
Torque (ft-lb)
Class
8.8
Class
10.9
Inch Fasteners Grade 5 and Grade 8
CAUTION
Batteries normally produce explosive gases,
which can cause personal injury. Therefore,
do not allow ames, sparks or lit tobacco
to come near the battery. When charging or
working near a battery, always cover your
face and protect your eyes, and also provide
ventilation.
• Batteries contain sulfuric acid, which burns
skin, eyes and clothing.
• Disconnect the battery before removing or
replacing any electrical components.
CAUTION
Read instructions before assembling.
Fasteners should be nger tight until
instructed to tighten according to the torque
chart. Use standard methods and practices
when attaching snowplow, including proper
personal protective safety equipment.
WARNING
Vehicle exhaust contains lethal fumes.
Breathing these fumes, even in low
concentrations, can cause death. Never
operate a vehicle in an enclosed area without
venting exhaust to the outside.
WARNING
Gasoline is highly ammable and gasoline
vapor is explosive. Never smoke while
working on vehicle. Keep all open ames
away from gasoline tank and lines. Wipe up
any spilled gasoline immediately.

Lit. No. 41775, Rev. 02 6 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
HEADGEAR AND A‑FRAME
NOTE: For easier assembly and installation,
vehicle and all snowplow components should
be on a smooth, level, hard surface, such as
concrete.
1. Set aside the blade guides and parts bag. The
vehicle electrical harnesses and the Owner's
Manual packet are in the bag with the headlamp
box.
2. HDX™ snowplows only: Remove the stacking
stops bolted to the pallet and set them aside.
Certain snowplow congurations using the
55° blade attack angle require installation of
stacking stops. (See "Stacking Stops — HDX
Snowplows" in the Final Adjustments section.)
3. Remove the blocking and strapping that secure
the headgear assembly to the pallet. Adjust the
lift chain so that approximately half the chain is on
either side of the lift arm link.
4. Remove the headgear assembly from the pallet so
that the A‑frame is resting on the ground.
5. Inspect the step pins attaching the A‑frame to the
headgear to see whether they are secured with
temporary shipping wires or cotter pins. If the
step pins are secured with shipping wires,
replace the wires with 1/4" x 1‑1/2" cotter pins
from the parts bag.
Leave the step pins inserted in the top A‑frame
position holes for now.
Step Pin
Headgea
r
A-Frame
Replace shipping wire
with 1/4" x 1-1/2" cotter
(both sides).
HDX A‑frame shown

Lit. No. 41775, Rev. 02 7 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
Jack Handle
Jack Lock
Jack
HDX blad
e
shown.
1" x 9-1/2" Pivot Bolt
Angle Ram
Quadrant
Blade Guide
1/4" x 1-1/4"
Cotter Pin
1" Locknut
1 x 3-3/4"
Clevis Pin
Blade Guide
Lock Wa
sher
Locknut
A‑FRAME TO BLADE ASSEMBLY
1. Align the pivot‑bolt hole on the A‑frame with the
pivot‑bolt hole on the blade.
2. Install the 1" x 9‑1/2" pivot bolt from the top.
Secure with a 1" locknut and tighten as much as
possible while allowing the A‑frame to pivot.
3. With the blade in the normal operating position,
pull the jack lock and lower the jack leg to support
the headgear. Release the jack lock to hold the
jack in position.
4. Remove the protective packaging from the angle
rams.
5. Align the angle ram rods with the angle ram
holes on the blade (HD2™ blades) or quadrant
(HDX™ blades) and attach them using two
1" x 3‑3/4" clevis pins, installed from the top.
Secure with 1/4" x 1‑1/2" cotter pins.
6. Install the blade guides.

Lit. No. 41775, Rev. 02 8 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
HEADLAMPS
Headlamps, hardware and instructions are found in
the headlamp box.
1. Attach the headlamps to the hole and slot in the
headgear light bracket by following the instructions
included with the headlamps.
2. Secure the snowplow harnesses and cables to the
headgear as shown.
WARNING
Your vehicle must be equipped with snowplow
headlamps and directional lights.
Cable
Ties
Cable
Ties
Snowplow
Li
ghting
Harness

Lit. No. 41775, Rev. 02 9 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
6. Turn the control ON and completely angle the
blade to the left and right several times. Raise and
lower the snowplow several times. Activate the
control FLOAT function and manually collapse the
lift ram all the way. Turn the control OFF.
7. Remove the ll plug and check the uid level.
With the lift ram fully retracted, the uid level
should reach the ll hole. If additional uid is
needed, ll the reservoir with FISHER® EZ Flow
Hydraulic Fluid rated to –40°F (–40°C), or
other uid conforming to Military Specication
MIL‑H‑5606 A, such as Mobil Aero HFA or Shell
AeroShell® Fluid 4.
NOTE: Remove ll plug slowly to relieve any
pressure in reservoir.
8. Replace and tighten the ll plug.
HYDRAULIC UNIT
The HDX™ and HD2™ snowplow hydraulic system
comes from the factory pre‑assembled, partially lled
and fully tested.
1. Remove the cover of the hydraulic unit.
2. Remove and discard the factory‑installed pipe
plug from the breather port. Install the 90° elbow
into the port, with the elbow pointing up.
3. Install the breather into the elbow.
4. Replace the cover.
5. Attach the snowplow to the vehicle according to
the instructions on the headgear.
WARNING
Keep 8' clear of the blade when it is being
raised, lowered or angled. Do not stand
between vehicle and blade or directly in front
of the blade. If the blade hits or drops on you,
you could be seriously injured.
CAUTION
Do not mix di󰀨erent types of hydraulic uid.
Some uids are not compatible and may
cause performance problems and product
damage.
FLUID CAPACITY
• Insta‑Act® Unit Reservoir 1‑3/4 quarts
• Insta‑Act System Total 2‑3/8 to 2‑3/4 quarts
AeroShell® is a registered trademark (®) of Shell Oil Company.
Drain Plug
Fi
ll Plug
Breathe
r
90° Elbow
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.

Lit. No. 41775, Rev. 02 10 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
HDX™ BLADE ATTACK ANGLE
ADJUSTMENT
The HDX blade features a bolted connection between
the quadrant and main blade that allows adjustment
among three attack angles—55°, 65° and 75°. It is
factory set at 65°.
The snowplow does not need to be attached to the
vehicle to perform this adjustment.
1. Loosen (DO NOT REMOVE) the lower quadrant
1" locknuts. Remove the upper quadrant
3/4" locknuts, washers and cap screws.
2. Align the desired attack angle holes in the
quadrant and blade.
3. Reinstall the upper quadrant fasteners on both
sides of the quadrant.
Remove
3/4" Fasteners
Loosen 1" Locknuts
DO NOT REMOVE
55° & 75°
65°
65°55°
75°
3/
4" Cap
Screw
3/4" Washer
3/4" Locknut
CAUTION
If the snowplow is not attached to the vehicle,
lean the headgear forward. Failure to do
so could result in the headgear shifting
unexpectedly and causing personal injury.

Lit. No. 41775, Rev. 02 11 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
A special spring replacement tool (PN 20043‑1)
must be used to safely make this adjustment.
NEVER ATTEMPT SPRING REMOVAL
WITHOUT THE SPECIAL TOOL. Follow the
instructions packed with the spring replacement
tool.
NOTE: If the springs are not adjusted to match the
attack angle setting, blade damage may occur.
6. Install the blade guides in the mounting holes that
match the selected blade attack angle
Accessories Adjustments
When the blade attack angle is changed, accessories
such as rubber cutting edge, back drag edge, blade
wings and shoes must also be adjusted. Follow the
instructions supplied in the accessory kit(s).
4. Torque the upper and lower fasteners as shown.
NOTE: Lower 1" locknuts must be torqued to
764 ft‑lb and the upper 3/4" locknuts must be
torqued to 269 ft‑lb.
5. When the blade attack angle has been changed to
or from 55°, the lower mounting position of the trip
springs must be changed as shown.
65° & 75°
55°
Torque 3/4" fastener
s
to 269 ft-lb
Torque 1" fasteners
to 764 ft-lb
55°
65°
75
°
CAUTION
Servicing the trip springs without special
tools and knowledge could result in personal
injury. See your authorized outlet for service.
Spring Replacemen
t
T
ool (PN 20043-1)

Lit. No. 41775, Rev. 02 12 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
FINAL ADJUSTMENTS
Leveling the A‑Frame
With the snowplow attached to a properly ballasted
vehicle and the blade lowered to the ground, the
A‑frame should be parallel with the ground. Three
attachment holes are provided to allow the A‑frame
position to be adjusted.
1. Measure the distance from the center of the
connecting pin hole to the ground.
Headgear
Step Pin with
1/4" x 1-1/2" Cotter
A-Fr
ame
Holes
A-
Frame
Measure
this distance
Center of
Connecting
Pin Hole
2. Refer to the appropriate table to verify whether
the headgear is connected to the correct A‑frame
hole. If it is not, remove the step pins, adjust the
A‑frame position, reinstall the step pins, and insert
1/4" x 1‑1/2" cotter pins.
HD2™ Snowplow
Mount Height (in) A‑Frame Hole
15.85–17.35 Top
14.35–15.85 Middle
12.85–14.35 Bottom
HDX™ Snowplow
Mount Height (in) A‑Frame Hole
55° Attack Angle
13.95–15.45 Top
12.45–13.95 Middle
10.95–12.45 Bottom
65° Attack Angle
15 .7 5 –17. 2 5 Top
14.25–15.75 Middle
12.75 –14.25 Bottom
75° Attack Angle
16.75–18.25 Top
15.25–16.75 Middle
13.75 –15.25 Bottom
If the mount height falls outside the
ranges shown, the specied attack angle
is not recommended for that vehicle.
HDX A‑frame shown

Lit. No. 41775, Rev. 02 13 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
Stacking Stops – HDX™ Snowplow
Stacking stops are required for all installations using
the 55° blade attack angle, however, they are used
di󰀨erently depending on what A‑frame hole position is
being used.
Stacking stops are also required for installations using
the 65° blade attack angle in the bottom position.
Refer to the table below to determine whether stacking
stops are required and which width to use.
Attack
Angle
A‑Frame
Hole Position
Stacking Stops
Required?
Stacking
Stop Width
55°
Top
YES 1.8750" Middle
Bottom 1.3125"
65°
Top NO –
Middle
Bottom YES 1.3125"
75° All NO –
NOTE: Failure to install stacking stops when
required will result in blade and lift arm damage.
If the current snowplow conguration does not require
stacking stops, retain the stacking stops and fasteners
for possible future use when the blade attack angle is
changed.
Stacking
Stops
3/8" x 1"
Carriage Bolt
s
3/8" Locknuts
Top
Middle
Bottom
• When using the 55° blade attack angle in the top
and middle positions, install the stacking stops
to the cross channel of the headgear using four
3/8" x 1" carriage bolts and 3/8" locknuts as
shown. Tighten the locknuts to 31 ft‑lb.
• When using the 55° blade attack angle in the
bottom position or the 65° blade attack angle in
the bottom position, install the stacking stops
to the cross channel of the headgear using four
3/8" x 1" carriage bolts and 3/8" locknuts as
shown. Tighten the locknuts to 31 ft‑lb.
Stacking
Stops
3/8" x 1"
Carriage Bolts
3/8" Locknuts

Lit. No. 41775, Rev. 02 14 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
Adjusting Lift Chain
1. Remove and retain the passenger‑side lift chain
U‑bolt.
2. Adjust the length of the lift chain so the A‑frame
hits the lower portion of the headgear or
the stacking stops when the lift ram is fully
extended (10").
Reattach the loose end of the lift chain to the
passenger's side of the A‑frame with the retained
U‑bolt and locknuts, being sure to maintain any
length adjustment made in Step 2.
3. Fully tighten the U‑bolts, then loosen them slightly.
The chain link should pivot freely in the U‑bolt.
10"
HDX™ configuration
shown
WARNING
Keep 8' clear of the blade when it is being
raised, lowered or angled. Do not stand
between vehicle and blade or directly in front
of the blade. If the blade hits or drops on you,
you could be seriously injured.
Ke
ep chain link oriented
in dire
ction of lift when
at
taching U-bolt.
U-Bolt

Lit. No. 41775, Rev. 02 15 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
Adjusting Lift Chain Spring
The lift chain spring ensures proper operation of the
snowplow mounting system by providing slack in the
lift chain after the blade is lowered.
HD2™ and HDX™ snowplows come with the lift chain
spring connecting link ("quick link") factory installed in
the 14th link up from the driver‑side lift chain U‑bolt.
Due to variations in vehicle frame height, it may be
necessary to change the spring location to adjust the
slack in the lift chain to ensure optimal performance.
With the snowplow attached to a properly ballasted
vehicle, make one of the following adjustments:
If there is not enough slack in the lift chain:
Adjust the quick link up one link from the factory
setting.
If there is too much slack in the lift chain:
Adjust the quick link down one link from the
factory setting.
Moving the connecting chain link more than one chain
link higher or lower than the original factory setting is
not recommended.
GREASING HDX™ PIVOT BEAM
Using a rubber‑tipped seal‑o󰀨 coupler, apply good
quality multipurpose grease through the two grease
points in the rear of the pivot beam.
Grease the pivot beam at the beginning of the
snowplow season. Reapply as needed during the
season and before putting the snowplow in storage.
Grease Points
Lift Chain (PS)
Quick Link
Lift
Chain
(DS)

Lit. No. 41775, Rev. 02 16 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
Isolation Module installed. Due to the variations
in the OEM DRL systems and the di󰀨erent
Isolation Module options available, checking
the functionality of the snowplow DRLs will
depend on the type of module installed on the
vehicle.
With the headlamp switch OFF, activate the
vehicle DRLs.
Snowplow lighting harness DISCONNECTED
• Vehicle DRLs should be ON.
• Snowplow headlamps should be OFF.
Snowplow lighting harness CONNECTED
and vehicle in DRL mode: Check snowplow
DRL function per the type of Isolation Module
installed.
• Green Label DRL Module (PN 29070‑1)
On vehicles equipped with DRLs integrated
into the vehicle headlamps, this module will
transfer the vehicle headlamp DRLs to the
snowplow (turns o󰀨 vehicle DRLs).
On vehicles equipped with dedicated DRL
bulbs or vehicles using the turn signals as
DRLs, this module will not turn OFF the
vehicle bulbs. While the vehicle is in the
DRL mode, this module will illuminate the
snowplow lighting turn signal laments.
• Blue Label Module (PN 29760‑1)
Snowplow not attached to vehicle: System
is inactive. Vehicle lighting system functions
normally.
Snowplow attached to vehicle: System is
inactive until either the switched accessory
wire or the vehicle parking lights are
activated.
On vehicles equipped with DRLs integrated
into the vehicle headlamps, this module will
transfer the vehicle headlamp DRLs to the
snowplow (turns o󰀨 vehicle DRLs).
On vehicles using the turn signals as DRLs,
this module will not turn OFF the vehicle
bulbs. While the vehicle is in the DRL mode,
this module will illuminate the snowplow
lighting turn signal laments.
VEHICLE LIGHTING CHECK
1. Verify the operation of all vehicle front lighting
prior to connecting the snowplow harnesses.
2. Check the operation of the snowplow lights with
snowplow mounted to vehicle and all harnesses
connected.
A. Turn Signals and Parking Lamps
Parking lamps ON: Both vehicle and snowplow
parking lamps should be ON at the same time.
Driver‑side turn signal ON: Both vehicle and
snowplow driver‑side turn signal lamps should
ash at the same time.
Passenger‑side turn signal ON: Both vehicle
and snowplow passenger‑side turn signal lamps
should ash at the same time.
B. Headlamps
Move the vehicle headlamp switch to the
"ON" position. Connecting and disconnecting
the snowplow lighting harness plug should
switch the lights between vehicle and
snowplow as follows:
Snowplow lighting harness DISCONNECTED
• Vehicle headlamps should be ON.
• Snowplow headlamps should be OFF.
Snowplow lighting harness CONNECTED
• Snowplow headlamps should be ON.
• Vehicle headlamps should be OFF.
The dimmer switch should toggle headlamps
between high and low beams. The high
beam indicator on the dash should light when
headlamps are placed in high beam.
C. Daytime Running Lamps (DRLs)
An operational check of the vehicle and
snowplow DRLs will depend on the vehicle
model, vehicle DRL system and type of

Lit. No. 41775, Rev. 02 17 August 15, 2017
90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
D. Control Power Indicator Light
The snowplow plugs do need to be connected
to the vehicle harness connectors.
The control power indicator light should light
whenever the control ON/OFF switch and the
ignition (key) switches are both in the "ON"
position.
3. Connect all snowplow and vehicle harnesses.
Raise the snowplow and aim the snowplow
headlamps according to the Snowplow Headlamp
Beam Aiming Instructions included with the
headlamps, and any state or local regulations.
4. Check the aim of the vehicle headlamps with the
snowplow removed.
5. When the snowplow is removed from the vehicle,
install plug covers on the vehicle battery cable
and lighting harness. Insert the snowplow battery
cable and lighting harness into the cable boot on
the snowplow.
CAUTION
On 2‑plug electrical systems, plug covers
shall be used whenever snowplow is
disconnected. Vehicle Battery Cable is 12‑Volt
unfused source.
OWNER'S MANUAL PACKET
If the completed snowplow will be delivered
immediately, the Owner's Manual should be reviewed
with and given to the purchaser according to the
snowplow checklist.
If the snowplow is completed prior to delivery to the
purchaser, attach the Owner's Manual packet to the
electrical cable of the cab control for safekeeping.

90750, 90800, 90850, 90900, 93800, 93900,
97200, 97200‑1, 97250(CH), 97250‑1(CH), 97300, 97300‑1
Lit. No. 41775, Rev. 02 August 15, 2017
Fisher Engineering reserves the right under its product improvement policy to change construction or design details and furnish equipment
when so altered without reference to illustrations or specications used. Fisher Engineering or the vehicle manufacturer may require or
recommend optional equipment for snow removal. Do not exceed vehicle ratings with a snowplow. Fisher Engineering o󰀨ers a limited
warranty for all snowplows and accessories. See separately printed page for this important information. The following are registered (®) or
unregistered (™) trademarks of Douglas Dynamics, LLC: FISHER®, Insta‑Act®, Minute Mount® 2, HD2™, HDX™.
Printed in U.S.A.