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9/16"

7/16"

1

2

3

4

7/16"

9/16"

Moldboard & A-frame Assembly (Continued)

07

Male O.R.B. Connector Adapter

(Port #2)

S6

S8

S4

RV

FC

S3

S5

Hydraulic Hose Identification Guide

Straight Blade Snowplows

Calumet, Michigan 49913

HYDRAULIC HOSES

1

2

3

Port

Function

S3
S4
S5
S6

S5 & S8

BLZ 1054

NOTE: Energize the following
solenoids for the functions:

1
2
3
4

Pressure Gauge

Quick Connect

Clockwise - Decreases Plow Drop Speed
Counterclockwise - Increases Plow Drop Speed

4

Right Angle - Left Cylinder
Left Angle - Right Cylinder

Raise - Lift Cylinder (Base)

Lower - Lift Cylinder (Rod)

Angle Relief Valve

Variable Flow Control Valve

RV
FC

Left Angle - Right Cylinder
Right Angle - Left Cylinder

Float

Raise - Lift Cylinder (Base)

Lower - Lift Cylinder (Rod)

8.

Next, align the mount holes on the pump and the manifold with the
holes in the brackets located on the A-frame. When installed correctly,
the manifold will be located at the front of the A-frame closest to the
pivot beam.

CAUTION: 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 the wire lead coils.
Doing so can cause a solenoid cartridge to bend, causing
the cartridge to stick when activated.

When installing the manifold between the mount
brackets on the A-frame, DO NOT handle the
manifold by the wire lead coils. The solenoid 
cartridges can bend, causing them to stick when
activated. Always carry the manifold by the sides
of the aluminum block.

Installing The Manifold Adapters

There are a total of 4 hydraulic adapters to install.
All of the adapters can be found packaged with
the manifold assembly. Remove the protective
stretch wrap from the manifold in a clean area.
DO NOT let any foreign objects enter into the
open ports. The valves can become contaminated
and greatly hinder the plow’s performance.
Review the table on page 33 for proper torque
specifications.

Note: The gray arrows shown in the manifold illustration above indicate
the direction the 90˚ adapters should face to receive the hydraulic hoses.

90˚ Adjustable Elbow O.R.B. Adapter

(Ports #1, #3 & #4)

Summary of Contents for 680LT

Page 1: ...2004 Assembly Operation Manual Blizzard Straight Blade Snowplow Models 680LT 720LT www blizzardplows com...

Page 2: ...nes and troubleshooting tips Should you need additional information contact your local Blizzard snowplow dealer Their knowledgeable staff is well informed on the latest straight blade information They...

Page 3: ...install on all Blizzard snowplow control stations in minutes Ideal for bucket seat vehicles with low center consoles Pedestal mount accessory shipped with complete hardware and adapter plate Blizzard...

Page 4: ...ing 6 Position snowplow in such a manner as to not block your vision or plow headlights while in transit 7 Do not change the position of the snowplow while in transit 8 Do not exceed 40 mph when trans...

Page 5: ...de stops lifting return the joystick to its neutral position C Angled Right Position To angle your straight blade to the right position the joystick toward the R on the label To stop angling the plow...

Page 6: ...age orientation Please remove these items prior to assembly 4 Place the main blade assembly on a flat level surface Once you have inspected all parts and removed all packaging materials your snowplow...

Page 7: ...e snowplow is lowered with the kickstand in the down position 2 Remove each dust cap from both of the ANGLE CYLINDER ports and attach one 7 16 20 x 7 16 20 MALE O R B CONNECTOR ADAPTER to each port No...

Page 8: ...ropriate fitting illustrated on page 7 in its respective port Note All ports are identified by a stamped number on the manifold The numbers also identify the hydraulic functions which can be ref erenc...

Page 9: ...CAUTION 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 the wire lead coils Doing so can cause a solenoi...

Page 10: ...96 to the male connector adapter on port 2 Route the hose under the pump and over the manifold Lastly connect the driver s side angle cylinder hose P N 60294 to port 1 Route the hose over the pump to...

Page 11: ...ution when making the connection Switches can break if done forcefully 5 Continue the harness installation by connecting the PLASTIC FEMALE ELECTRICAL CONNECTOR on the harness to the PLASTIC MALE ELEC...

Page 12: ...WHITE PUMP SOLE NOID ACTIVATION WIRE on the wire harness and position the eyelet over the remaining small terminal on the contactor Secure it with the hardware provided on the solenoid 3 Proceed to c...

Page 13: ...icle head light connector from the headlight Attach the HEADLIGHT ADAPTER CONNECTOR to the existing vehicle headlight connector Next plug the BLACK FIVE PIN CONNECTOR on the headlight adapter into the...

Page 14: ...either end of the light tower Connect the terminals from the plow lights to the terminals on the main lighting harness Repeat the installation for the opposite headlight 15 Align the four mount holes...

Page 15: ...ned Rotate the A frame latch counterclockwise until the latch is locked in the raised position Insert the two HITCH PINS through the mounting holes on the A frame and secure each with one hair pin cot...

Page 16: ...side rear of the moldboard shown below MOUNTING DISMOUNTING INSTRUCTIONS BLZ 1059 TM A Frame Latch Rotates Clockwise And Hooks Onto Draw Pin KEEP FINGERS AW A Y Should the Mounting Dismounting Instruc...

Page 17: ...Notes 15 Notes...

Page 18: ...to grease more frequently depending on your plowing environment 6 Lubricate all pins and bushings to prevent corrosion and to maintain consistent operation including the A frame latch A NLGI Grade 2 m...

Page 19: ...the pump filter and replace the hydraulic oil to within 3 4 from the top of the reservoir Changing the fluid annually will prolong the life of your pump and manifold Never mix different types of hydra...

Page 20: ...e Cylinder Stroke 4 5 8 Ram Diameter 1 Bore Diameter 1 3 4 Plow Headlights Type Low Profile w Turn Signals Measurements 12 W x 5 H x 5 1 4 D Housing Plastic Composite Mount Adjustable Ball Type Bulb T...

Page 21: ...207 Wire Diameter 28 41037 1 1 Bushing Stepped 1 13 O D 0 53 I D x 3 8 Stainless Steel 29 50069 6 6 Pin Clevis 3 4 DIA x 3 YZ 30 61357 8 8 Pin Cotter 1 4 x 1 1 2 Z 31 61434 1 1 Screw Hex Head Cap 1 8...

Page 22: ...pling Nipple 9 16 18 81 60167 2 2 Valve Spool Four Way Two Position C C 86020197 w o screen 82A 62148 1 1 Coil Harness Assembly 1 86 62045 62117 4 82 5 62096 62097 62116 N A 62045 1 1 Connector Electr...

Page 23: ...061 104 61107 1 1 Headlight Plow Driver s Side 105 61108 1 1 Headlight Plow Passenger s Side 106 62032 2 2 Wire Harness with 5 pin plug Plow Headlight N A 62061 2 2 Bulb Sealed Beam Halogen Glass Plow...

Page 24: ...1 97A 97 98 99A 99 100 1 3 4 5A 5 6 9 7 14 10 11 2 12 13 15 16 17 18 19 20 21A 21 22 23 24 25 24 26 27 28 29 29 29 29 29 30 30 30 20 30 31 32 33 34 36 36 37 38 39 40 41 42 43 45A 45 54...

Page 25: ...ranty non Blizzard snowplow service parts or accessories or damage resulting from the use of these unauthorized items Blizzard snowplows are protected by one or more of the following U S patents 5 638...

Page 26: ...1 82 85 86 87 82 83 82 88 78 89 76 A B C D E F G H J K S5 S4 S8 S3 S6 S5 S8 S4 S3 S6 CONNECTS TO PACKARD ELECTRIC CONNECTOR SEE SCHEMATIC ON PAGE 27 N A N A N A N A N A RIGHT ANGLE LEFT ANGLE 3000 PSI...

Page 27: ...SLIDE BOX EXTEND 18 5 RED BLACK RIGHT SLIDE BOX RETRACT 18 6 BLUE WHITE LEFT SLIDE BOX EXTEND 18 7 BLUE BLACK LEFT SLIDE BOX RETRACT 18 8 BLUE LEFT ANGLE 18 9 LT GREEN RIGHT ANGLE 18 10 WHITE LIFT 18...

Page 28: ...LUE G BLUE BLACK H BLUE WHITE J RED BLACK K RED WHITE 1 PLOW HARNESS 2004 WITH MOLDED PLUG P N 62039 NOT DRAWN TO SCALE UNLESS OTHERWISE SPECIFIED ALL DIMENSIONS IN INCHES ALL WIRE 18 GA EXCEPT AS MAR...

Page 29: ...GE RED WHITE WHITE BROWN BROWN HITCH SWITCH DPDT ON OFF ON BROWN PINK BLACK ORANGE WHITE WHITE 10 11 15 3 SEE VEHICLE WIRE HARNESS SCHEMATIC LT GREEN BLUE BLUE BLACK BLUE WHITE RED BLACK RED WHITE RED...

Page 30: ...2 B 2 A YELLOW BLACK B BLACK WHITE C YELLOW D GREEN YELLOW E YELLOW RED A 1 LT GREEN BLACK B 1 BLACK WHITE C 1 LT GREEN D 1 GREEN YELLOW E 1 LT GREEN RED A 2 WHITE B 2 BLACK WHITE C 2 WHITE RED D 2 G...

Page 31: ...A HIGH BEAM YELLOW BLACK F PARK RUN GRAY D RIGHT TURN PINK C GROUND BLACK B A B C D F VEHICLE END VIEW LOOKING AT CONNECTOR E C LT GRN LOW BEAM FEED B YELLOW HIGH BEAM FEED A WHITE RED COMMON D YELLOW...

Page 32: ...ACK 6 BLUE WHITE 7 BLUE BLACK 8 BLUE 9 LT GREEN 10 WHITE 11 ORANGE 15 PINK BLACK HIGH AMP WIRES COLORS PIN 1 BLACK PIN 2 RED WIRE SGT 4 AWG CONDUIT BLACK SLIT 0 50 I D BROWN WHITE 85 LONG RED 8 LONG R...

Page 33: ...E WHITE RED BLACK RED WHT BROWN BLACK GREEN YELLOW NOTE ALL GROUNDS HAVE BLACK WIRE BLACK 15 11 10 9 PINK BLACK 8 7 ORANGE PINK BLACK ORANGE WHITE LT GREEN BLUE BLUE BLACK 6 BLUE WHITE 5 RED BLACK 4 R...

Page 34: ...LAY GROUND FROM SWITCH 18 END VIEW LOOKING AT CONNECTOR 1 2 MOLEX FREE HANGING RECEPTACLE 093 2 PIN POWER CONNECTOR WITH MOLEX FEMALE TERMINAL PIN COLOR FUNCTION AWG NO 1 GREEN YELLOW RELAY GROUND FRO...

Page 35: ...lbs 430 ft lbs 7 8 9 41 550 454 ft lbs 606 ft lbs 1 8 38 600 482 5 ft lbs 640 ft lbs 1 8 54 540 680 ft lbs 900 ft lbs Clamp Loads Pounds Clamp Loads Pounds Nominal Thread Size Nominal Thread Size Gra...

Page 36: ...n the joystick control or wire harness Disconnect the joystick in the cab If the solenoid turns off there is a short in the electrical system Pump runs but plow functions are slow Fluid level in the p...

Page 37: ...illustration below gauge to the tee Push the plow against a solid object and record the pressure reading Note The setting should not exceed 3000 PSI Plow will not angle pump works Review all probable...

Page 38: ...electrical components 4 Snowplows mounted on vehicles other than those for whom Blizzard Corporation has provided a specific undercarriage system 5 Blizzard Corporation does not assume liability for...

Page 39: ...aler 3 Any snowplow or part thereof which has been subject to neglect misuse accident improper installation maintenance or storage This includes but is not limited to corrosion of any electrical compo...

Page 40: ...registered trademarks of Loctite Corporation USA Velcro is a registered trademark of Velcro Industries B V All other trademarks and registered trademarks are the property of their respective owners Al...

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