Fisher Engineering Minute Mount 2 SD Series 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 selection system has
specic vehicle and snowplow requirements.
SD Series Snowplows
Installation Instructions
Fisher Engineering
July 15, 2020
Lit. No. 49591, Rev. 05
27775, 28069
57000, 57000‑1, 57000‑3
50 Gordon Drive, Rockland, Maine 04841‑2139 • www.sherplows.com

Lit. No. 49591, Rev. 05 2 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
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. 49591, Rev. 05 3 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
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 automotive‑style 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. 49591, Rev. 05 4 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
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.
NOISE
Airborne noise emission during use is below 70 dB(A)
for the snowplow operator.
VIBR ATION
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

Lit. No. 49591, Rev. 05 5 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
HEADGEAR TO A‑FRAME ASSEMBLY
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. Remove the packaging hardware securing the
headgear to the A‑frame, except the clevis pins
and red shipping brackets.
3. Remove the blocking and hardware securing the
A‑frame to the pallet.
4. While supporting the headgear, remove and
retain the four pins, and discard the red shipping
brackets.
5. Align the holes in the headgear assembly with
the middle hole in the A‑frame assembly. Attach
the A‑frame to the headgear with two step pins
and 1/4" x 1‑1/2" cotter pins. Insert the step pins
from the outside of the headgear. Verication of
proper A‑frame position will be made during nal
adjustments.
1/4" x 1-1/
2"
Cotter Pin
A
-Frame
Headgear
Assembly
Step
Pin

Lit. No. 49591, Rev. 05 6 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
5. Align the angle ram rods with the angle ram
holes on the blade, and attach using two
1" x 4‑3/4" clevis pins, installed from the top.
Secure with 1/4" x 1‑1/2" cotter pins.
6. Install the blade guides.
A‑FRAME TO BLADE ASSEMBLY
1. Align the pivot‑pin hole on the A‑frame with the
pivot‑pin hole on the blade.
2. Install the pivot pin from the top. Secure with a
1/4" x 2" cotter pin at the bottom.
3. With the blade in 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.
Headgear
not shown.
Pivot Pin
Cl
evis
Pin
Cotter
Pins
Clevis Pin
Jack Handle
Jack Lock
Jack
Blade Guide

Lit. No. 49591, Rev. 05 7 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
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 SD Series snowplow hydraulic unit comes from
the factory pre‑assembled, partially lled, and fully
tested.
1. Attach the snowplow to the vehicle according to
the instructions on the headgear.
2. Remove the cover of the hydraulic unit.
3. Remove and discard the factory‑installed pipe
plug from the breather port. Install the 90° elbow
into the port, with the elbow pointing up.
4. Install the breather into the elbow.
5. Replace the cover.
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.
CAUTION
Do not mix di󰀨erent types of hydraulic uid.
Some uids are not compatible and may
cause performance problems and product
damage.
AeroShell® is a registered trademark (®) of Shell Oil Company.
Drain Plug
Fi
ll Plug
Breathe
r
90° ElbowFLUID CAPACITY
• Insta‑Act® Unit Reservoir 1‑3/4 quarts
• Insta‑Act System Total 2‑3/8 to 2‑3/4 quarts
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. 49591, Rev. 05 8 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
HEADLAMPS
Headlamps, hardware, and instructions are found in
the headlamp box.
1. Install the vehicle wiring according to the
instructions provided.
2. With the driver‑ and passenger‑ side headlamps
on the correct sides, set each headlamp and
swivel into place on the headgear light bar.
3. Secure the headlamps with the correct hardware
for the application as shown below. Inner and
outer posts require di󰀨erent hardware. On LED
headlamps, a rubber washer must be installed
under the slotted holes. Hand tighten fasteners.
4. Connect the headlamp wires to the headlamps.
5. Aim the headlamps according to the Snowplow
Headlamp Beam Aiming Instructions
(Lit. No. 27769). For LED headlamps,
tighten the fasteners to 22 ft‑lb (30 N·m). For
halogen headlamps, tighten the fasteners to
50 ft‑lb (68 N·m).
WARNING
Your vehicle must be equipped with snowplow
headlamps and directional lights.
Halogen HeadlampsLED Headlamps
Headlamp
Swivel
Headgear
Light Bar
1/2" Flat
Washers
1/2" Lock
Washers
1/2" Hex Nuts
Slotted
Hole
1/2" Rubbe
r
Washer
6. Secure the snowplow harnesses and wires to the
headgear with cable ties as shown.
Cable
Ties
Cable
Tie
Snowplow
Li
ghting
Harness

Lit. No. 49591, Rev. 05 9 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
FINAL ADJUSTMENTS
Lift Chain
1. 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. If not, reposition the A‑frame using the
upper or lower A‑frame assembly holes.
2. Adjust the length of the lift chain so that the
A‑frame hits the lower portion of the headgear
when the lift ram is fully extended (6").
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.
6"
Shown with blade raised
.
3. Remove and retain the U‑bolt and locknuts
securing the lift chain on the passenger's side of
the A‑frame. Reposition the U‑bolt in the chain so
that the chain is the same length as the chain on
the driver's side.
4. Reattach the loose end of the lift chain to the
passenger's side of the A‑frame with the retained
U‑bolt and locknuts. The chain must be the same
length on both sides.
5. Fully tighten the U‑bolts before lifting the blade.
Connecting Link and Lift Chain Spring
When the blade is lowered, the lift chain spring
provides slack in the lift chain for ease of mounting
and dismounting the blade.
Your snowplow application may use either a lap link or
a quick link to connect the lift chain and spring.
The lift chain spring is installed at the factory in the lift
chain link indicated in the chart below.
Snowplow
Number of Links
from Driver‑Side U‑Bolt
Lap Link Quick Link
SD Series 8 9
However, due to variations in vehicle frame height,
it may be necessary to adjust the spring location to
ensure optimal performance.
If you encounter mounting or dismounting di󰀩culty, the
attachment point of the connecting link and spring can
be changed to a link on the lift chain that will add or
remove slack from the lift chain.
Lap Link Quick Link

Lit. No. 49591, Rev. 05 10 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
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,
there will be di󰀩culty getting the connecting pins
to engage the vehicle pushplates while pushing
back on the headgear. Adjust the connecting link
up one link from the factory setting.
If there is too much slack in the lift chain,
adjust the connecting link down one link from the
factory setting.
Moving the connecting link more than one chain link
higher or lower than the factory installed location is
not recommended.
Lift Chain (DS)
Center U‑Bolt
Spring
Connecting
Link
Driver‑Side
U‑Bolt
Link #1

Lit. No. 49591, Rev. 05 11 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
VEHICLE LIGHTING CHECK
1. Verify the operation of all vehicle front lighting
prior to connecting the snowplow harness.
2. Check the operation of the snowplow lights with
snowplow mounted to vehicle and all harnesses
connected.
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.
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.
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 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.
Refer to the Mechanic's Guide for information on
the Isolation Module DRL functions.
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.
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.
CAUTION
On 2‑plug electrical systems, plug covers
shall be used whenever snowplow is
disconnected. Vehicle battery cable is
12V unfused source.

Lit. No. 49591, Rev. 05 12 July 15, 2020
27775, 28069, 57000, 57000‑1, 57000‑3
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.
Printed in U.S.A.