Douglas Dynamics Fisher V Series User manual

CAUTION
See your FISHER®outlet for specific vehicle
application recommendations before
installation. The Kit Selection Guide has
specific vehicle and snowplow requirements.
CAUTION
Read this document before installing the
snowplow.
Fisher Engineering
COMMON ATTACHMENT KIT
V Series
Installation Instructions
P.O. Box 529 Rockland, Maine 04841 • www.fisherplows.com August 1, 2006
Lit. No. 27589, Rev. 11
28888 V
A SUBSIDIARY OF DOUGLAS DYNAMICS, L.L.C.
®

August 1, 2006 2 Lit. No. 27589, Rev. 11
28888 V
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 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.
Attachment
Arm
Jack
Lock
Headgear
Jack
(fully raised)
Headlamp
Bracket
Jack
(lowered)
Pin Release
Handle
(lowered)
Jack
Handle
Connecting
Pin
Pushplate
Jack
Stop
Pin Release
Handle (raised)
P
U
S
H
ATTACH DETACH
27451
U.S Patents 4,280,062; 4,999,935; 5,353,530; 5,420,480; RE 35,700; 6,253,470;
CAN Patent 2,060,425; and other patents pending.
Read Owner's Manual For Complete Instructions
1. Push
Pin Release
Handle down to pull
out Connecting Pins.
2. Drive vehicle slowly to engage
Pushplates into Attachment Arms.
3. Stand in front of blade. Fully raise Pin Release
Handle to release Connecting Pins.
4. Push Headgear toward vehicle to allow Connecting Pins
to fully engage Pushplates. If unable to push Headgear
from in front of blade, stand in front of Headgear on driver
side and push Headlamp Bracket.
5. Pull out Jack Lock. Push Pin Release Handle into Stop.
6. While holding Jack Lock out, use Jack Handle to raise
Jack fully. Release Jack Lock.
7. Attach all electrical connectors.
1. Place control in Lower/Float to put blade
down.
2. Pull and hold Jack Lock out. Jack will drop to
ground. Then pull Pin Release Handle away
from Stop and Jack Lock. Release Jack
Lock. Verify Jack is locked by trying to lift
Jack.
3. Stand in front of blade. While pushing Headgear toward
vehicle with left hand, push Pin Release Handle down to
disengage Connecting Pins. Make sure Connecting
Pins are fully retracted. If unable to push Headgear from
in front of blade, stand in front of Headgear on driver side
and push Headlamp Bracket.
4. Detach all electrical connectors.
Instruction Label
Warning/Caution Label
WARNING
Indicates a potentially hazardous situation that,
if not avoided, could result in death or serious
personal injury.
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.

Lit. No. 27589, Rev. 11 3 August 1, 2006
28888 V
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.
PERSONAL SAFETY
• Remove 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-fitting 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 fire extinguisher rated BC handy, for
flammable liquids and electrical fires.
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.
WARNING
Lower blade when 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
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.
WARNING
Do not exceed GVWR or GAWR including the
blade and ballast. The rating label is found on
the driver-side vehicle door cornerpost.
CAUTION
Refer to the Kit Selection Guide for minimum
vehicle recommendations and ballast
requirements.
CAUTION
To prevent accidental movement of the blade,
always turn the ON/OFF switch to OFF
whenever the snowplow is not in use. The
control indicator light will turn off.
WARNING
Hydraulic fluid under pressure can cause skin
injection injury. If you are injured by hydraulic
fluid, get medical attention immediately.

August 1, 2006 4 Lit. No. 27589, Rev. 11
28888 V
TORQUE CHART
Recommended Fastener Torque
Chart (Ft.-Lb.)
Size SAE
Grade 2
SAE
Grade 5
SAE
Grade 8
1/4-20
5/16-18
3/8-16
3/8-24
7/16-14
1/2-13
9/16-12
5/8-11
3/4-10
7/8-9
1-8
6
11
19
24
30
45
66
93
150
150
220
9
18
31
46
50
75
110
150
250
378
583
13
28
46
68
75
115
165
225
370
591
893
Metric Grade 8.8 (Ft.-Lb.)
Size TorqueSize
Torque
M 6
M 8
M 10
M 12
M 14
M 16
7
17
35
60
95
155
These torque values apply to fasteners
except those noted in the instruction.
CAUTION
Read instructions before assembling.
Fasteners should be finger tight until
instructed to tighten according to the torque
chart. Use standard methods and practices
when attaching snowplow including wearing
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 flammable and gasoline
vapor is explosive. Never smoke while working
on vehicle. Keep all open flames away from
gasoline tank and lines. Wipe up any spilled
gasoline immediately.
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 flame.
VENTILATION

Lit. No. 27589, Rev. 11 5 August 1, 2006
28888 V
BLADE AND A-FRAME ASSEMBLY
Blade Assembly and A-Frame
1. Place some cardboard or wood supports on the
floor where the blade will be assembled. Remove
the blade halves from the pallet. Place face down
on the cardboard or wood with the hinges facing
each other. Push the blade halves together so that
the holes in the hinges are aligned.
2. Insert the A-frame assembly between the blade
halves so the flat hinges on the A-frame straddle
the flat hinges on the blade. Slide the pivot pin
through all the hinges once all the hinge holes are
aligned. Install a 1/4" x 2" slotted spring pin through
the bottom of the pivot pin.
3. Install the push assembly to the outside of the
A-frame ears with the flat side of the cross
member center angle up.
4. Measure the distance between the center of the
connecting pin hole of the vehicle pushplate and
the ground. Install two 5/8" x 2" Gr. 8 flanged cap
screws into the front holes of the push assembly
and A-frame from the outside. See table below to
determine which hole to use. Secure with two 5/8"
Gr. 8 flanged nuts. Tighten the two fasteners until
snug. Do not torque at this time.
5. Install the 3/4" x 2-1/2" Gr. 8 cap screws in the
center holes of the push assembly and through the
slot in the A-frame from the outside. Install the 3/4"
Gr. 8 flange nuts on the cap screws, finger tight.
Push Plate Height
(hole center to ground)
Front
Hole
19-1/2" to 13-3/4" (typical) A
13-3/4" to 11-1/2" B
Front Rea
r
5/8" x 2"
Cap Screw
3/4" x 2-1/2"
Cap Screw
Push Assembly
(side view)
B
A
Measure
this distance
Center of
Connecting
Pin Hole
Pivot Pin
A-Frame
Push
Assembly
Shoes
(remove before
standing blade
upright)
Cross Member
Center Angle
Cross Bar -
attach U-bolt
extension
spring here

August 1, 2006 6 Lit. No. 27589, Rev. 11
28888 V
NOTE: For 9-1/2' EZ-V®blades, install blade stop kit
26634 before attaching angle rams.
6. On 9-1/2' EZ-V blades only: Prepare for the
installations of the blade stops as follows:
Attach the blade stops to the A-frame by aligning
the rear anchor pin holes with the angle ram
anchor pin holes in the A-frame and temporarily
inserting the angle ram anchor pins.
Using the bolt hole in the blade stop, mark the
position of the attaching holes in the A-frame
channels. Remove the blade stops and drill the
holes in the A-frame channels.
Bolt Hole
Rear Anchor
Pin Hole

Lit. No. 27589, Rev. 11 7 August 1, 2006
28888 V
90° Elbow
Angle Ram Fittings
90° Elbow
Anchor Pin
Blade Stop
Cotter Pin
Angle Rams and Hoses
Do not use thread sealant/tape on hoses and fittings.
This could damage product.
1. Remove threaded plugs from rams using an Allen
wrench.
2. Attach fittings (90°) to rams. These should be
parallel to the ram.
3. Attach 36" hoses to fittings in angle rams. Tighten
hoses to the fittings until finger tight.
4. Secure the rams to the wings with anchor pins and
cotter pins.
On 9-1/2' EZ-V blades only: Install the blade
stops over the rams, and bolt the blade stops to
the A-frame using 1/2" x 1-1/2" cap screws and 1/
2" locknuts. Swing the A-frame into place such that
the rams and blade stops align with the anchor pin
holes in the A-frame.
5. Attach the angle rams to the A-frame with the two
anchor pins and cotter pins. Position the rams so
the fittings face inward, toward the A-frame.

August 1, 2006 8 Lit. No. 27589, Rev. 11
28888 V
Center Deflector
3/8" x 2" Cap Screws
3/8" Flat Washer (2)
3/8"-16 Locknut
A-Frame
Blade
Extension Spring
1. Place U-bolt on extension spring. Place 3/8" nut on
each side of U-bolt. Place U-bolt through cross bar
on A-frame (see illustration on page 5). Place lock
washers and 3/8" nuts on U-bolt and tighten.
2. Remove shoes and stand the blade up.
Nut
Lock Washer
U-Bolt
Cross Ba
r
Extension
Spring
Nut
Center Deflector
1. Slide the center deflector into place over the top of
the hinge.
2. Fasten the center deflector to the A-frame using
two 3/8" x 2" Gr. 5 cap screws, four 3/8" flat
washers (two on each side of deflector) and two
3/8" locknuts.
3. Allow 1/2" clearance between the blade and the
center deflector. Torque the two 3/8" fasteners on
the center deflector to 31 ft-lb.
4. Install a blade guide on each end of the top of the
blade. For each guide, put one washer and one
nut on either side of the blade.

Lit. No. 27589, Rev. 11 9 August 1, 2006
28888 V
Push Plate Height
(hole center to ground)
Rear
Hole
18" to 19-1/2" Top
18" to 15-1/4" (typical) Middle
15-1/4" to 11-1/2" Bottom
Measure
this distance
Center of
Connecting
Pin Hole
Jack
Handle
Jack
Lock
Jack
HEADGEAR ASSEMBLY
Jack and Headgear Assembly
1. Install the jack by pulling the jack lock out and
inserting the jack up through the slot in the
headgear. Release the jack lock to hold the jack in
place. Attach the jack handle to the jack with a 3/8"
lock washer and nut.
2. Align holes in headgear assembly with a hole in the
A-frame pushears. Hole selection is determined by
distance from center of the connecting pin hole to
the ground. Refer to table below.

August 1, 2006 10 Lit. No. 27589, Rev. 11
28888 V
3. Attach the A-frame to the headgear assembly with
two step pins, 1" flat washers and 1/4" x 1-1/2"
cotter pins. Insert the step pins from the outside of
headgear. Insert 1" flat washer between the
headgear A-frame ear and the outside of the push
assembly. Verification of proper A-frame position
will be made during Final Adjustments at the end of
these instructions.
4. Install a 3/8" U-bolt through a link in one end of the
lift chain. Attach U-bolt and chain to the holes on
the driver-side A-frame brace with 3/8" lock
washers and nuts. Tighten. The other end of the lift
chain will be attached to the passenger side A-
frame brace after hydraulic unit is installed.
Step Pin
Washer Cotter
Pin
Cable
Clevis
Pin
Strap Fork
Cotter Pin
Stop Link
5. Insert the cable down through the hole in the strap
fork. Attach the strap fork to the hole in the stop
link on the lift arm with a 3/8" x 1" clevis pin and
1/8" x 1" cotter pin. Slip the cable thimble onto the
top loop in the spring previously installed in the
front of the A-frame.
NOTE: The slotted end of the thimble may need to
be opened to slip it onto the loop. Fully close the
slot after attaching the thimble to the spring.
6. Loop the end of the cable around the thimble. Pull
the cable up against the thimble until the slack is
removed. Attach the end of the cable back onto
itself with two cable clamps loosely installed close to
the thimble as shown.
Due to varying vehicle heights, the length of the
cable must be adjusted for the vehicle in the Final
Adjustments section at the end of these instructions.

Lit. No. 27589, Rev. 11 11 August 1, 2006
28888 V
Mounting Hydraulic Unit
1. Bolt the Insta-Act®hydraulic unit to the headgear
using two 1/4" x 3" cap screws, flat washers, and
locknuts.
Lift Ram and Hose Assembly
Do not use thread sealant/tape on hoses and fittings.
This could damage products
1. Remove plug from ram port.
2. Turn the jam nut on the fitting as far back as
possible.
3. Lubricate the O-ring with clean hydraulic oil.
4. Screw fitting into port by hand as far as it will go.
The washer should contact port face and shoulder
of the jam nut threads.
5. Unscrew fitting to proper position, no more than
one full turn.
5. Use one wrench to hold the fitting body in position
and tighten the jam nut with another wrench until
the washer again contacts port face. Tighten 1/8 to
1/4 turn to lock fitting in place.
6. Attach 18" hose to lift ram elbow.
Fitting
Jam Nut
Washer
O-Ring
Ram
Lift Ram Fitting
90° Elbow
7. Attach lift ram to the headgear using one
1" x 3-5/16" clevis pin and 1/4" x 1-1/2" cotter pin.
Attach lift ram to the lift arm using one 1" x 3-5/16"
heat treated (head marked "HT") clevis pin and
1/4" x 1-1/2" cotter pin. Orient ram port to driver side.
Ram
Port
Cotter Pin
Clevis Pin
Lift
Ram
Cotter
Pin
Heat Treated (HT)
Clevis Pin
Washer
Cap Screw
Locknut

August 1, 2006 12 Lit. No. 27589, Rev. 11
28888 V
18" Hose, HP 1/4 P - 1/4 P
36" Hose, HP 1/4P - 1/4P
Lift Ram
9/16 O-Ring to
JIC 45° Elbow
Hydraulic Unit
Driver-Side
Angle Ram
Passenger-Side
Angle Ram
A
B
C
E
D
Breather - 3/8 NPT
3/8 NPT x 90° Street Elbow
9/16 O-Ring to
JIC 90° Elbow
9/16 O-Ring to
JIC 90° Elbow
9/16 O-Ring to
JIC 90° Elbow
2. Install hydraulic hose fittings right to left (A–E) as
indicated in the illustration below. Remove the
plugs from the angle ports, lift port, and the 3/8"
NPTF plug from the breather port. Screw a 90°
swivel elbow into the lift port and a 3/8" x 90° street
elbow into the breather port. Screw the 45° elbows
into the angle ports.
3. Looking at the front of the vehicle, orient the 45°
swivel elbows in the angle ports as shown. The 90°
swivel in the lift port should be at 1 o’clock. The
3/8" x 90° street elbow in the breather port should
point straight up. Screw the breather into the street
elbow.
4. Route hydraulic hoses as shown. In order to
minimize the possibility of hose damage, route all
angle ram hoses from the ram up to the hydraulic
unit.

Lit. No. 27589, Rev. 11 13 August 1, 2006
28888 V
CONTROL AND LIGHT HARNESS
INSTALLATION
NOTE: Use dielectric grease to prevent corrosion
on all electrical connections. Fill receptacles and
lightly coat ring terminals and blades before
assembly.
1. Remove the valve covers, and connect the
snowplow control harness to the valve coil
terminals according to the instructions inside the
valve covers.
NOTE: The strain relief must be inside the covers
to prevent unnecessary strain on the solenoid
connectors.
COILS - 5 ft. lbs.
CARTRIDGES - 10 ft. lbs.
SOLENOID VALVE TORQUE:
RED WIRE TABS, ONE AT EACH COIL.
COLORED WIRES AS SHOWN.
ELECTRICAL CONNECTIONS:
BLUE/ORANGE
4W COIL
66618
BLACK/WHITE COILS - 5 ft. lbs.
CARTRIDGES - 10 ft. lbs.
SOLENOID VALVE TORQUE:
RED WIRE TABS, ONE AT EACH COIL.
COLORED WIRES AS SHOWN.
ELECTRICAL CONNECTIONS:
LT. BLUE/ORANGE
3W COIL
3W COIL
66617
WHITE/YEL.
2W COIL
COILS - 5 ft. lbs.
CARTRIDGES - 10 ft. lbs.
SOLENOID VALVE TORQUE:
RED WIRE TABS, ONE AT EACH COIL.
COLORED WIRES AS SHOWN.
ELECTRICAL CONNECTIONS:
4W COIL
GREEN
4W COIL
BLUE
66616
2. Apply anti-seize lubricant to the fasteners and
reinstall the valve covers.
3. Attach the snowplow battery cable to the motor
terminals. Connect the black and red striped wire
to the POSITIVE (+) terminal. Connect the black
wire to the NEGATIVE (–) terminal.
4. Cable tie harnesses and battery cable to the
headgear as shown on the following page.
NOTE: Snowplow lighting and control harnesses
plug into one another for storage.

August 1, 2006 14 Lit. No. 27589, Rev. 11
28888 V
HEADLAMP INSTALLATION
If installation instructions were included with the
headlamps, follow them now.
1. Slide a headlamp swivel onto the threaded stem on
the underside of the driver-side headlamp
assembly. The park/turn lamp should be to the
outside of the headlamp.
2. Mount the headlamp to the headgear light bracket
as shown. Secure with a lock washer and nut.
3. Repeat steps 1 and 2 on the passenger side.
4. Route the snowplow lighting harness as shown,
connecting the black/orange ground wire to the
NEGATIVE (–) motor terminal. Secure the
snowplow lighting harness to the headgear using
cable ties as needed.
5. Read, follow, and remove the headlamp label if
one is present.
WARNING
Your vehicle must be equipped with snowplow
headlamps and directional lights.
Cable Routing
1 Snowplow Lighting Harness
2 Black Wire
3 Black/Red Wire (connected to POSITIVE (+)
motor terminal)
4 Black/Orange Ground Wire (connected to
NEGATIVE (–) motor terminal)
5 Snowplow Battery Cable, shrouded plug (plug
into cable boot for storage)
6 Snowplow Control Harness (plug into snowplow
lighting harness for storage)
New Style Old Style
Cable
Ties
Cable
Boot
Cable
Ties
6
5
4
3
2
1

Lit. No. 27589, Rev. 11 15 August 1, 2006
28888 V
PUSH ASSEMBLY ADJUSTMENT
NOTE: The vehicle is needed to complete the
installation. Do all necessary installation to the
vehicle at this time, if not already done. Add ballast
and equip vehicle as it will be used to plow snow.
1. Attach the snowplow to the vehicle according to the
instructions on the headgear. Manually place the
blade to the "scoop" position. With shoes removed,
and the plow fully lowered, place a 1/4" spacer
between the wings and floor as shown.
2. Tighten the two 5/8" fasteners holding the push
assembly to the A-frame.
3. Detach the snowplow from the truck, according to
the instructions on the headgear.
4. Remove the 3/4" nuts from the cap screws in the
center holes on the push assembly and install the
locking plate as illustrated. Slide the locking plates
as far forward as possible. Reinstall the 3/4"
locknuts and tighten.
5. Make sure all flanged bolts (Gr. 8) and nuts (Gr. 8)
on the A-frame are fastened to the proper torque.
Torque the 5/8" fasteners to 250 ft-lb. Torque 3/4"
fasteners to 350 ft-lb.
1/4" Thick Spacer
Push Assembly A-Frame
Push Assembly A-Frame
Locking Plate Position with Bolt in
the Top Half of the A-Frame Slot
Locking Plate Position with Bolt in
the Bottom Half of the A-Frame Slot

August 1, 2006 16 Lit. No. 27589, Rev. 11
28888 V
RUBBER FLAP ASSEMBLY
1. Install one mounting bracket to the back of each
base angle, using four 1/2" x 2" cap screws and
1/2" locknuts.
2. Adjust wings so they are in line with each other or
slightly forward in the scoop position.
3. Place 1/2" washer on 1/2" x 2-1/2" cap screw and
insert cap screw into a hole in the rubber flap. The
rubber flap is mounted with the longest edge facing
the ground.
Base
Angle
1/2" x 2" Cap Screw
1/2" Locknut
DS Mounting
Plate
Rubber Flap
1/2" x 2-1/2" Cap Screw
1/2" Washer (2)
1/2" Locknut
PS Mounting
Plate
Rubber
Flap
1/2" x 2-1/2"
Cap Screw
Washer
Base
Angle
1/2" Locknut
DS Mounting
Plate
4. Place rubber flap against rear inside surface of the
mounting brackets and align holes in flap and
brackets.
5. Insert the cap screw through the hole in the back
plate of the mounting bracket. Add 1/2" washer and
1/2" locknut. Tighten locknut until washer slightly
deforms the rubber surface.
6. Insert the second 1/2" cap screw through the
rubber flap and mounting plate weldment using the
same washer and locknut assembly as mentioned
above.

Lit. No. 27589, Rev. 11 17 August 1, 2006
28888 V
A-frame
interferes with
hydraulic unit
A-frame
interferes with
lift arm
FINAL ADJUSTMENTS
1. Detach the snowplow from the vehicle. Push the
headgear toward the blade as far as it will go with
the lift ram fully retracted. The blade and headgear
will be in the stacking position. If the A-frame
interferes with the hydraulic unit or the lift arm,
install the A-frame stop. If no interference, move on
to step 3.
2. Install four 3/8" x 1" carriage bolts through cross
channel of the headgear as shown in top of next
column. Install an A-frame stop on each side as
shown. Torque the two 3/8" locknuts to 31 ft-lb.
3. Complete installation of lift chain by inserting loose
end of lift chain through stop link on the lift arm.
Fasten to opposite holes in the A-frame brace
using a 3/8" U-bolt, lock washer, and nut. Hand
tighten.
4. Complete electrical installation in vehicle and install
control. Attach snowplow to vehicle.
A-Frame
Stop
Carriage Bolt
A
-Frame
Stop
Locknut
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 the blade. If the blade hits or drops on
you, you could be seriously injured.

August 1, 2006 18 Lit. No. 27589, Rev. 11
28888 V
NOTE: Add fluid only when all rams are retracted.
5. With snowplow in vee position and lift ram fully
retracted, fill the reservoir with hydraulic fluid.
Replace fill plug.
6. Turn control on and completely extend and retract
the driver-side wing several times. With all rams
fully retracted, turn control off.
7. Fill reservoir to top of fill hole and replace fill plug.
8. Repeat steps 6 and 7 for the passenger side wing.
9. Turn control on and raise and lower the snowplow
several times. Activate control float function and
manually collapse lift ram all the way after each
lowering of the blade. With all rams fully retracted,
turn control off.
10. Fill reservoir to top of fill hole and replace fill plug.
11. With plow attached to properly ballasted vehicle
and blade lowered to ground, the A-frame should
be parallel with the ground. If not, see Push
Assembly Adjustment.
10"
CAUTION
Do not mix different types of hydraulic fluid.
Some fluids are not compatible and may cause
performance problems and product damage.
12. Attach the snowplow to the vehicle.
13. Adjust the length of the lift chain so the A-frame
hits the lower portion of the headgear or A-frame
stop when the lift ram is fully raised (10"). Tighten
U-bolts.
14. For reliable operation and prevent damage to the
6-1/2" lift arm extension spring, the length of the
cable must be adjusted when attached to the
vehicle it will be used on. With the lift ram fully
collapsed, wrap the cable tightly around the
thimble, shorten/lengthen the cable to remove all
slack from the cable, then tighten the cable
clamps.
15. After adjustment, excess cable should be trimmed
off close to the second cable clamp. Cover cut end
of cable with electrical tape. Excessive spring
tension will make attaching/detaching difficult and
overextend the spring.
CAUTION
DO NOT raise blade as this may cause pump
cavitation.
FLUID CAPACITY
•Insta-Act®Unit Reservoir 1-3/4 quarts
•Insta-Act®System Total 2-3/4 quarts

Lit. No. 27589, Rev. 11 19 August 1, 2006
28888 V
VEHICLE LIGHTING CHECK
1. Check the operation of vehicle and plow lights with
plow mounted to vehicle and all harnesses con-
nected.
Turn signals and parking lamps
Parking lamps ON:
• Both vehicle and plow parking lamps should be
on at the same time.
Driver-side turn signal ON:
• Both vehicle and plow driver-side turn signal
lamps should flash at the same time.
Passenger-side turn signal ON:
• Both vehicle and plow passenger-side turn
signal lamps should flash at the same time.
Headlamps
Move vehicle headlamp switch to the ON position.
Connecting and disconnecting the headlamp harness
plug from the vehicle harness connector should
switch between vehicle and plow headlamps as
follows:
Headlamp harness plug DISCONNECTED:
• Vehicle headlamps should be on.
• Plow headlamps should be off.
Headlamp harness plug CONNECTED:
• Plow headlamps should be on.
• Vehicle headlamps should be off.
Dimmer switch should dim whichever headlamps are
operating. The high beam indicator on the dash
should light when either set of headlamps is on high
beam.
Daytime Running Lamps (DRLs)
With headlamp switch off, activate the DRLs.
Headlamp harness plug DISCONNECTED:
• Vehicle DRLs should be on.
• Plow headlamps should be off.
Headlamp harness plug CONNECTED AND
vehicle uses the headlamp bulbs for DRLs:
• Plow headlamps should be on in DRL mode
(with reduced intensity compared to high or low
beam).
• Vehicle DRLs should be OFF.
Headlamp harness plug CONNECTED AND
vehicle uses lamps other than the headlamp bulbs
for DRLs:
• Plow headlamps should be on in DRL mode
(with reduced intensity compared to high or low
beam).
• Vehicle DRLs should be on.
• Vehicle headlamps should be off.
Joystick Control or Hand-Held Control
The control indicator light should light whenever
the control ON/OFF switch and the ignition (key)
switches are both in the ON position. The plow
plugs do not need to be connected to the vehicle
harness connectors.
2. Connect all plow and vehicle harnesses. Raise the
plow and aim plow headlamps according to the
Snowplow Headlamp Beam Aiming instructions
included with the headlamps and any state or local
regulations.
3. Check aim of vehicle headlamps with plow removed.
4. When the plow is removed from the vehicle, install
the plug cover on the vehicle battery cable connec-
tor and insert the plow battery cable connector into
the cable boot on the plow. On both the vehicle and
plow, the lighting harness and control harness
connectors plug into one another for storage.
OWNER'S MANUAL PACKET
If the completed plow will be delivered immediately,
the Owner's Manual should be reviewed with and
given to the purchaser.
If the plow is completed prior to delivery to the
purchaser, attach the Owner's Manual Packet to the
electrical cable of the cab control for safekeeping.

August 1, 2006 20 Lit. No. 27589, Rev. 11
28888 V
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 specifications 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 offers a limited
warranty for all snowplows and accessories. See separately printed page for this important information. The following are registered (®)
trademarks of Douglas Dynamics, L.L.C.: EZ-V®, FISHER®, Insta-Act®, Minute Mount®2.
Printed in U.S.A.