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760HD

Blizzard 760HD, 760LT, 800HD, 860HD Installation Instructions & Owner's Manual

June 15, 2010
Lit. No. B64090, Rev. 07
Models 760LT, 760HD, 800HD & 860HD
Installation Instructions & Owner's Manual
CAUTION
CAUTION
Read this document before installing the snowplow.
CAUTION
Read this document before operating or servicing snowplow.
This manual supersedes all editions with an earlier date.
PREFACE
Congratulations on purchasing the fi nest straight blade snowplow available! BLIZZARD® straight blades are clearing new trails for innovative design, rugged durability, quality craftsmanship and superior performance. Our innovative products are tested all over the snowbelt.
This manual provides safety, operation and maintenance information for your new BLIZZARD snowplow. To keep your snowplow in good condition, read and understand this manual and follow its recommendations. Failure to do so may affect your warranty coverage.
When service is necessary, your local BLIZZARD distributor knows your snowplow best. Contact your BLIZZARD outlet for maintenance, service or any other assistance you may require.
If you have not already done so, please visit www. blizzardplows.com to register your new BLIZZARD snowplow!
Lit. No. B64090, Rev. 07 2 June 15, 2010
TABLE OF CONTENTS
Preface ........................................................................ 2
Safety Information .......................................................4
Vehicle Application Information ................................... 7
Operation .....................................................................8
Unpacking & Inspection .............................................. 9
Torque Sp e c ifi cations ................................................10
Moldboard & A-Frame Assembly .............................. 12
Electrical & Hydraulic Systems.................................. 17
General System Schematics .............................. 17
Hydraulic Guide .................................................. 18
Electrical Installation – Snowplow Side .............. 19
Electrical Schematics – Snowplow Side ............. 20
Electrical Installation – Vehicle Side ................... 23
Electrical Schematics – Vehicle Side .................26
POWER HITCH™ System Instructions ..................... 30
Testing Your Snowplow .............................................31
Headlamp Aiming ......................................................33
Maintenance .............................................................. 34
Technical Specifi cations ............................................35
Troubleshooting ......................................................... 36
Parts Lists .................................................................. 38
Moldboard Parts – All Models .............................38
A-Frame & Pivot Beam Parts – All Models ......... 40
Power Unit Parts – All Models ............................42
Lights, Draw Latch & Control Parts – All Models ..44
Harnesses, Accessories & Kits – All Models ...... 46
Notes ......................................................................... 51
Lit. No. B64090, Rev. 07 3 June 15, 2010
SAFETY
Crush hazard.
Keep feet clear.
WARNING
SAFETY DEFINITIONS
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.
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.
MOUNT INSTRUCTIONS DISMOUNT INSTRUCTIONS
Read Owner's Manual for Complete Instructions. Read Owner's Manual for Complete Instructions.
STEP #1 STEP #1
CONNECT/DISCONNECT POWER HITCH Switch
•
Kickstand must be lowered, with kickstand pin seated in lower hole on pivot beam.
• Slowly drive vehicle forward until pushbeam receiver mount points contact A-frame mount bushings.
• Turn POWER HITCH OPERATION switch (on plow control) to "ON" position.
• Connect plow and vehicle electrical harnesses. Connect weather caps together.
STEP #2 STEP #2
• Pull A-frame latch lock pin out and lower A-frame latch over draw pin.
• Push and hold CONNECT/DISCONNECT switch upward. POWER HITCH arm will engage back of pushbeam and pull plow into pushbeam receiver mount points on vehicle.
• Insert both hitch pins and secure each with hair pin cotter.
• Lower POWER HITCH arm to relieve tension on A-frame latch. Raise A-frame latch and lock into position with lock pin. Raise plow.
• Raise kickstand until kickstand pin seats into upper hole on pivot beam.
Pushbeam Receiver Mount Points
Kickstand Pin
Adjustable Kickstand
A-Frame Latch Lock Pin
A-Frame Latch
rotates clockwise
and hooks onto
Draw Pin
U.S. Patents 5,638,618; 5,899,007; 6,178,669; 6,276,076; 6,393,737; 6,408,549; 6,412,199; 6,442,877; 6,615,513; Canadian and other patents pending.
Undercarriage Pushbeam
POWER
A-Frame
HITCH Arm
Mount Bushing
WARNING: Keep fingers away. POWER HITCH arm raises behind undercarriage pushbeam.
A-Frame Latch
Slowly Move Vehicle Forward
•
Raise plow. Lower kickstand until kickstand pin is seated in lower hole on pivot beam.
• Lower plow on flat, level surface. Turn vehicle ignition off.
• Remove hitch pins from A-frame and undercarriage.
• Turn vehicle ignition on.
• Turn POWER HITCH OPERATION switch (on plow control) to "ON" position.
Hitch Pin
Draw Pin
• Push and hold CONNECT/DISCONNECT switch downward. POWER HITCH arm will disengage from behind undercarriage pushbeam and lower.
• Disconnect plow and vehicle electrical harnesses. Install weather caps.
• Turn SYSTEM POWER (on plow control) to "OFF" position.
• Slowly move vehicle backward away from plow.
CONNECT/DISCONNECT POWER HITCH Switch
Kickstand Pin
CONNECT/DISCONNECT POWER HITCH Switch
Kickstand Pin
Adjustable
WARNING: Keep fingers away from plow and truck mounting points.
Kickstand
Adjustable Kickstand
POWER HITCH Arm
POWER HITCH Arm
Hitch
Pin
Move Vehicle
Backward
Slowly
44812
WARNING/CAUTION & INSTRUCTION LABELS
Become familiar with and inform users about the warning and instruction labels on the back of the blade.
NOTE: If labels are missing or cannot be read, see your sales outlet.
WARNING
LOWER BLADE WHEN VEHICLE IS PARKED.
DO NOT EXCEED GVWR OR GAWR INCLUDING BLADE AND BALLAST.
REMOVE BLADE ASSEMBLY BEFORE PLACING VEHICLE ON HOIST.
CAUTION
READ OWNER'S MANUAL BEFORE OPERATING OR SERVICING SNOWPLOW.
TRANSPORT SPEED SHOULD NOT EXCEED 45 MPH. FURTHER REDUCE SPEED UNDER ADVERSE TRAVEL CONDITIONS.
PLOWING SPEED SHOULD NOT EXCEED 10 MPH.
SEE YOUR SALES OUTLET/WEB SITE FOR SPECIFIC VEHICLE APPLICATION RECOMMENDATIONS.
59900
Lit. No. B64090, Rev. 07 4 June 15, 2010
WARNING
Crush hazard.
Keep feet clear.
SAFETY
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 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
You can die or be seriously injured. Keep hands and feet away from hitch mechanism and snowplow blade when operating the POWER HITCH™ arm. The action of the arm moves the snowplow toward the vehicle and into position for proper attachment.
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 the blade and ballast. The rating label is found on the 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.
CAUTION
Read Owner's Manual before operating or servicing snowplow.
CAUTION
Transport speed should not exceed 45 mph. Further reduce speed under adverse travel conditions.
CAUTION
Plowing speed should not exceed 10 mph.
CAUTION
See your BLIZZARD® outlet for application recommendations.
HYDRAULIC SAFETY
WARNING
Hydraulic fl uid under pressure can cause skin injection injury. If you are injured by hydraulic fl uid, get medical attention immediately.
• 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 snowplow 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 fi re. Fuse Replacement, including fuse ratings and locations, is located in the Maintenance Section of this Owner's Manual.
WARNING
Remove blade assembly before placing vehicle on hoist.
Lit. No. B64090, Rev. 07 5 June 15, 2010
SAFETY
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-fi 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 fi re extinguisher rated BC handy, for fl ammable liquids and electrical fi res.
FIRE AND EXPLOSION
WARNING
Gasoline is highly fl ammable and gasoline vapor is explosive. Never smoke while working on vehicle. Keep all open fl ames away from gasoline tank and lines. Wipe up any spilled gasoline immediately.
VENTILATION
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.
BATTERY SAFETY
CAUTION
Batteries normally produce explosive gases which can cause personal injury. Therefore, do not allow fl 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.
NOISE
Be careful when using gasoline. Do not use gasoline to clean parts. Store only in approved containers away from sources of heat or fl ame.
CELL PHONES
A driver's fi 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 or two-way radios.
Airborne noise emission during use is below 70 dB(A) for the snowplow operator.
Lit. No. B64090, Rev. 07 6 June 15, 2010
VEHICLE APPLICATION INFORMATION
CAUTION
See your BLIZZARD® outlet for specifi c vehicle application recommendations before installation. The Undercarriage Selection Guide has specifi c vehicle and snowplow requirements.
Vehicle application recommendations are based on the following:
• The vehicle with the snowplow installed must comply with applicable Federal Motor Vehicle Safety Standards (FMVSS).
• The vehicle with the snowplow installed must comply with the vehicle manufacturer's stated gross vehicle and axle weight ratings (found on the driver-side door cornerpost of the vehicle) and the front and rear weight distribution ratio. In some cases, rear ballast may be required to comply with these requirements.
• BLIZZARD Undercarriage Selection Guide is based on available vehicle capacity for snowplow equipment on a representative vehicle equipped with options commonly used for snowplowing and with 300 lb of front seat occupant weight.
• Weights of front seat occupants can be adjusted above 300 lb but vehicle with snowplow must not exceed vehicle GVWR or GAWR.
• In some cases there may be additional limitations and requirements.
• Installation, modifi cation and addition of accessories must comply with published BLIZZARD recommendations and instructions. Available capacity decreases as the vehicle is loaded with cargo or other truck equipment or snowplow accessories are installed.
BALLAST REQUIREMENTS
Position
and secure ballast
as close to the tailgate
as possible.
Ballast (additional weight) is an important part of qualifying vehicles for snowplow eligibility. Rear ballast must be used when necessary to remain in compliance with axle ratings and ratios as specifi ed by the vehicle manufacturer.
If ballast is required, it is important that it be secured properly behind the rear axle. A ballast retainer kit is available from your BLIZZARD outlet, PN 62849.
NOTE: The ballast retainer kit is for snowplow vehicles requiring ballast. See your BLIZZARD outlet for the correct amount of ballast required. Include the weight of the retainer as part of the ballast requirement. Sand bags are recommended for use as ballast.
NOTE: Ballast recommended and its weight calculations assume the entire width of the bed is fi lled as close to tailgate as possible.
• If there is uncertainty as to whether available capacity exists, the actual vehicle as confi gured must be weighed.
Lit. No. B64090, Rev. 07 7 June 15, 2010
OPERATION
Your snowplow is the most advanced and versatile straight blade on the market. The easy-to-use controls allow you to automatically adjust the snowplow blade into an infi nite number of plowing positions. Review the illustrations below for instruction on maneuvering your snowplow.
A.
B.
A. Lowered or Float Position
Pushing the joystick forward, toward the
"Lower/Float" designation on the label, or pushing the D button on the touchpad will lower your straight blade to the ground. Pushing and momentarily holding the control in this position will allow the snowplow to "fl oat," or follow the contour of the ground when moving forward or backward.
B. Raised Position
Pulling the joystick back, toward the "Raise"
designation on the label, or pushing the U button on the touchpad will lift your straight blade off of the ground. To stop raising the snowplow, simply return the joystick to its "neutral" or center position or release the touchpad button. The snowplow has reached its maximum raised position when the blade stops lifting.
C. Angled Right Position
To angle your straight blade to the right, position
the joystick toward the "R" on the label or push the R button on the touchpad. To stop angling the snowplow, return the joystick to its "neutral" or center position or release the touchpad button. The snowplow has reached its maximum angled position when the blade stops moving to the right side.
C.
D.
D. Angled Left Position
To angle your straight blade to the left, position
the joystick toward the "L" on the label or push the L button on the touchpad. To stop angling the snowplow, return the joystick to its "neutral" or center position or release the touchpad button. The snowplow has reached its maximum angled position when the blade stops moving to the left side.
NOTE: To prevent premature failure of the power contactor (solenoid), return the joystick to its neutral (center) position or release the touchpad button immediately after the blade reaches the limit of any position. Continuing to hold the control after the blade has reached the limit of movement in any position will reduce the life of the solenoid.
Lit. No. B64090, Rev. 07 8 June 15, 2010
UNPACKING & INSPECTION
Your BLIZZARD® straight blade has been packaged to withstand transit and weather related damage. Fully inspect all components upon receipt of your snowplow. In the event of shipping damage or missing parts, immediately contact our Customer Service Department at 1-888-680-8600.
Begin unpacking and inspection in the following order:
1. Remove the shipping document from the end panel of the pallet wrap. Retain all documentation for your records.
2. All wood framing and polyethylene material should be removed from the pallet for easy access to the snowplow.
3. Due to the odd shaped components and size of several assembly parts, various cable ties and corrugated material are used for scratch resistance and package orientation. Please remove these items prior to assembly.
4. Place the main blade assembly on a fl at, level surface.
Once you have inspected all parts and removed all packaging materials, your snowplow is ready to be fully assembled.
Retain this information for your records.
Date of Purchase: ___________________________
Dealer/Distributor: __________________________
Dealer Phone Number: _______________________
Snowplow Serial Number: ____________________
Hydraulic Pump Serial Number: _______________
Lit. No. B64090, Rev. 07 9 June 15, 2010
TORQUE SPECIFICATIONS
TORQUE CHART
CAUTION
Read instructions before assembling. Fasteners should be fi 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.
Grade Identifi cation for J429–Grade 5 Bolt Grade Identifi cation for J429–Grade 8 Bolt
SAE J429 Grade 5 Torque Values SAE J429 Grade 8 Torque Values
Nominal
Thread Size
1/4-20 2,000 6 ft-lb 8 ft-lb 1/4-20 2,850 9 ft-lb 12 ft-lb
5/16-18 3,350 13 ft-lb 18 ft-lb 5/16-18 4,700 18 ft-lb 25 ft-lb
3/8-16 4,950 23 ft-lb 31 ft-lb 3/8-16 6,950 32 ft-lb 44 ft-lb
7/16-14 6,800 37 ft-lb 50 ft-lb 7/16-14 9,600 53 ft-lb 70 ft-lb
1/2-13 9,050 57 ft-lb 75 ft-lb 1/2-13 12,800 80 ft-lb 107 ft-lb
9/16-12 11,600 82 ft-lb 109 ft-lb 9/16-12 16,400 115 ft-lb 154 ft-lb
5/8-11 14,500 113 ft-lb 151 ft-lb 5/8-11 20,300 159 ft-lb 211 ft-lb 3/4-10 21,300 200 ft-lb 266 ft-lb 3/4-10 30,100 282 ft-lb 376 ft-lb
7/8-9 29,435 321 ft-lb 430 ft-lb 7/8-9 41,550 454 ft-lb 606 ft-lb
1-8 38,600 482 ft-lb 640 ft-lb 1-8 54,540 680 ft-lb 900 ft-lb
Clamp Loads
(lb)
Tightening Torque
"Lubricated" "Dry" "Lubricated" "Dry"
Nominal
Thread Size
Clamp Loads
(lb)
Tightening Torque
8.8
Grade Identifi cation for Metric–Grade 8.8 Bolt
Metric Class 8.8 Torque Values Metric Class 10.9 Torque Values
Diameter
(mm)
5 1,389 3 ft-lb 5 ft-lb 5 1,987 5 ft-lb 7 ft-lb 6 1,965 6 ft-lb 8 ft-lb 6 2,812 8 ft-lb 11 ft-lb 7 2,826 10 ft-lb 13 ft-lb 7 4,044 14 ft-lb 19 ft-lb
8 3,579 14 ft-lb 19 ft-lb 8 5,121 20 ft-lb 27 ft-lb 10 5,672 28 ft-lb 37 ft-lb 10 8,116 40 ft-lb 53 ft-lb 12 8,243 49 ft-lb 65 ft-lb 12 11,796 70 ft-lb 92 ft-lb 14 11,246 77 ft-lb 103 ft-lb 14 16,092 111 ft-lb 148 ft-lb 16 15,882 125 ft-lb 167 ft-lb 16 21,970 173 ft-lb 231 ft-lb 18 19,423 172 ft-lb 229 ft-lb 18 26,868 238 ft-lb 317 ft-lb 20 24,784 244 ft-lb 325 ft-lb 20 34,284 338 ft-lb 450 ft-lb
Clamp Loads
(lb)
Tightening Torque
"Lubricated" "Dry" "Lubricated" "Dry"
10.9
Grade Identifi cation for Metric–Grade 10.9 Bolt
Diameter
(mm)
Clamp Loads
(lb)
Tightening Torque
Lit. No. B64090, Rev. 07 10 June 15, 2010
Turns Size
N/A -02 6–7 N/A -03 8–9
2-0411–12
2-0514–15 1-1/2 -06 18–20 1-1/2 -08 36–39 1-1/2 -10 57–63 1-1/4 -12 79–88
1-1494–103
1-16108–113
1-20127–133
1-24158–167
1-32245–258
Size
-02 6–7
-03 8–10
-04 13–15
-05 17–21
-06 22–25
-08 40–43
-10 43 –57
-12 68–75
-14 90 –99
-16 112–123
-20 146–200
-24 154 –215
-32 218–290
ft-lb
min–max
ft-lb
min–max
Assembly Steps
1. Verify the port, O-ring, sealing surfaces and threads are clean and free of damage.
2. Lubricate the threads and the O-ring with 10W hydraulic fl uid.
3. For an adjustable ORB, completely back off the locknut and washer.
4. Hand tighten the fi tting until it contacts the port spotface. Point the elbow or tee in the desired direction and hold.
5. Torque to specifi cation.
NOTE: Torque values specifi ed are for threads lubricated with 10W hydraulic fl uid.
TORQUE SPECIFICATIONS
37° JIC Flare Torque Values
Assembly Steps
1. Make sure the tubing and threads are clean.
2. Lubricate the threads with 10W hydraulic fl uid.
3. Hand tighten the nut/sleeve to approximately 30 in-lb.
4. Make alignment marks on the nut and fi tting.
5. Tighten to turn or torque specifi cation.
6. When fully tightened, make a second set of alignment marks at the fully tightened position.
NOTE: Torque values specifi ed are for threads lubricated with 10W hydraulic fl uid.
Overtightening will reduce the clamping force resulting in loss of seal and reduction of fl ow.
O-Ring Boss Torque Values
Lit. No. B64090, Rev. 07 11 June 15, 2010
MOLDBOARD & A-FRAME ASSEMBLY
1. Position the pivot beam and A-frame near the connecting points at the rear of the blade between the two center support ribs. Insert one 3/4" x 3" clevis pin through each mounting hole and secure with 1/4" x 1-1/2" cotter pin.
Spring Loaded Adjustable Pivot Beam Kickstand
2. Mount the kickstand to the end of the pivot beam (driver-side) using the 1/2" x 4-1/2" cap screw provided. The spring, bushing and locknut are located on the inside of the pivot beam. Review the diagrams below and to the right. To pivot the kickstand, pull the spring loaded leg out and rotate it until the pin locks into place. Adjust the foot on the stand arm so that the foot is 1/8" from the ground when the A-frame is level and the A-frame mount points are 12-1/2" from the ground. Tighten both of the locknuts on the kickstand.
1/8" Ground Clearance
Lit. No. B64090, Rev. 07 12 June 15, 2010
12-1/2"
MOLDBOARD & A-FRAME ASSEMBLY
3. Position each angle cylinder with the rod end of the cylinder in the pivot beam and the hydraulic hose port facing away from the A-frame. Secure the cylinder to the pivot beam with a 3/4" x 5" clevis pin (95739) and a 1/4" x 1-1/2" cotter pin (B61357). Extend each cylinder rod until the cylinder base mounting hole aligns with the hole on the A-frame angle cylinder bracket. Insert another clevis pin and secure it with a cotter pin.
4. Remove the dust cap from both of the hydraulic angle cylinder ports and attach one 9/16" 90° adjustable elbow ORB adapter to each port. Each adapter should be angled toward the top of the moldboard. Connect one 3/8" x 24" hydraulic hose (B60091) to each angle cylinder adapter. Be careful not to overtighten the hose connections. Route both hoses over the TOP of each cylinder. This will prevent them from hanging or being pinched. Tighten fi ttings and hoses per torque chart.
5. Remove the plastic dust caps from the hydraulic lift cylinder ports. Attach one 9/16" 45° adjustable elbow ORB adapter (B60272) to the driver-side port (base end) and one 9/16" x 9/16" male ORB connector adapter (B60007) to the passenger­side port (rod end). Once the adapters have been installed on the cylinder, connect the hydraulic hoses. Tighten fi ttings and hoses per torque chart.
NOTE: Position the 45° fi tting in the cylinder port so that the hoses install directly in the center of the A-frame access holes. A hose installed too close to the edge of the opening may work itself free with the operation of the lift cylinder and/or movement of the snowplow.
The 45° adapter receives a 3/8" x 17" hydraulic
hose (B60273). Connect the 45° angle on the hose to the hydraulic adapter on the cylinder. The male connector adapter receives a 3/8" x 15" hydraulic hose (B60274). Connect the 45° end of the hose to the hydraulic adapter on the cylinder. Both hoses should be routed through the triangular openings in the A-frame. Tighten fi ttings and hoses per torque chart.
B60006
- Manifold Ports #3 & 4
9/16
56590
- Manifold Port #1
- Angle Cylinders
9/16
9/16
9/16
B60007
- Manifold Ports #3 & 4
- Lift Cylinder Rod End
9/16
9/16
9/16
B60072
- Manifold Port #2
9/16
9/16
B60272
- Lift Cylinder Base End
9/16
Lit. No. B64090, Rev. 07 13 June 15, 2010
MOLDBOARD & A-FRAME ASSEMBLY
6. Remove the draw latch mount pin, spacer and cotter pin from the draw latch assembly. By removing this pin, the inner draw latch plates can swing free. Remove the inner draw latch plate lift cylinder mount pin. Position the plates on either side of the lift/lower cylinder rod and insert the pin through the plates and cylinder rod. With the cylinder connected to the inner draw latch plates, rotate the draw latch assembly toward the draw latch mount holes on the A-frame. Align the holes in the outer draw latch plate with those of the inner draw latch plates and the A-frame.
Inner Draw Latch Plate
Lift Cylinder Mount Pin
3/4" x 2-1/2" or
5/8" x 2-3/8" (760LT only)
NOTE: The A-frame latch, located at the rear/ center of the A-frame, should be raised up to insert the draw latch mount pin. Pull the A-frame latch pull pin out and rotate the latch counterclockwise if it is locked into position.
Secure the assembly to the A-frame by replacing
the draw latch mount pin, spacer and cotter pin. Reset the A-frame latch so the A-frame latch pull pin locks into place.
A-Frame
A-Frame Latch Pin
Latch
Hydraulic Lift/Lower Cylinder
3/16" x 2-1/2" Cotter Pin
Inner Draw Latch Plate
Outer Draw Latch Plate
3/16" x 2-1/2" Cotter Pin
Draw Pin 1" x 6-1/2" or 1" x 5-5/8" for 760LT only
Cap Screw 3/4"-10 x 4-1/2" or 3/4"-10 x 4" for 760LT only
Draw Latch Mount Pin
1" x 4-21/32" or
1" x 3-7/8" (760LT only)
Draw Latch Arm Pivot Pin
3/4" x 2-1/2" or
3/4" x 2-3/8" for 760LT only
1" OD x 25/32" ID x 5/8"
Clevis Pin
3/4" x 3-41/64" or
3/4" x 3-7/16" for 760LT only
Spacer
1/4" x 1-1/2" Cotter Pin
Lit. No. B64090, Rev. 07 14 June 15, 2010
MOLDBOARD & A-FRAME ASSEMBLY
7. Assemble the manifold. The manifold, pump and coil harness have been connected at the factory; however, the manifold contains several components that you will need to install prior to securing the assembly to the A-frame. Each of the hose ports on the manifold is covered with stretch wrap. Remove the wrap and install the appropriate fi tting in its respective port. Tighten fi ttings and hoses per torque chart.
32
1
8. Align the mount holes in the pump with the holes in the hinged bracket, located on the A-frame.
NOTE: Before mounting the pump, angle the hinged bracket as needed and tighten the bracket hardware to lock it in place.
Secure with 3/8" x 3/4" cap screw and 3/8" fl at
washer through the top mount hole in the bracket and into the pump. Insert 3/8" x 1-3/4" threaded stud with 3/8" locknut through the bottom mount hole in the bracket and into the pump. The threaded stud should bottom out in the pump.
NOTE: When installing the manifold between the mount brackets on the A-frame, hold the manifold at the sides of the block. Never handle the manifold by coils. Doing so can cause a solenoid cartridge to bend, causing the cartridge to stick when activated.
NOTE: A medium strength thread-locking compound should be used on both of the pump mount fasteners.
4
NOTE: The arrows shown on the manifold illustration indicate the direction the 90° adapters should be positioned to receive the hydraulic hoses.
NOTE: DO NOT let any foreign objects enter into the open ports. The valves can become contaminated and greatly hinder the snowplow's performance. Torque to proper specifi cations.
NOTE: All ports are identifi ed by a stamped number on the manifold. The numbers also identify the hydraulic functions, which can be referenced on the label under the hydraulic pump and manifold cover.
9. Connect the hydraulic hoses to their respective adapters on the manifold. Hose PN B60091 Ports #1 and #2, Hose PN B60273 Port #3 and Hose PN B60274 Port #4. Tighten hoses per torque chart.
NOTE: Both lift cylinder hoses should be routed through the triangular openings in the A-frame. Position these hoses over the A-frame angle and to their respective manifold ports.
Lit. No. B64090, Rev. 07 15 June 15, 2010
MOLDBOARD & A-FRAME ASSEMBLY
10. Secure the manifold to the A-frame. Remove the washers, split lock washers and cap screws from the manifold and align the mount holes with the A-frame brackets. Properly replace and tighten all hardware.
Apply Thread-Locking Compound
11. Hook each extension spring to the receiving holes on the pivot beam and attach the opposite end of the spring to its respective spade bolts. Install the spade bolts through the extension spring mounting angle on the top rear of the blade. Secure each spade bolt by placing one 5/8" fl at washer on the bolt and thread one 5/8" locknut. Tighten each locknut until a piece of paper can pass between the 3rd and 4th coils on the spring.
Apply Thread-Locking Compound
NOTE: A medium-strength threadlocking compound should be used to secure the manifold mount fasteners.
12. Install the blade guides at each end of the moldboard. Insert the cap screw through the holes at the top of the wing reinforcement rib. Tighten all screws with locknuts.
Lit. No. B64090, Rev. 07 16 June 15, 2010
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