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Lit. No. 74912, Rev. 00 

May 1, 2020

Warning and Caution Label

Attach/Detach Label

ATTACH

DETACH

1.  Slowly drive vehicle forward 

to engage 

receiver pins

 into 

headgear slots

.

2.  Move 

power switch

 to 

center or "OFF" position.

3.  Plug in electrical harnesses.

4.  Push and hold 

power switch

 

and 

attach/detach 

operation switch

 RIGHT to 

rotate 

headgear

 up until 

hitch pins 

are aligned with 

the 

hitch pin holes

 on 

receivers

. Release both 

switches.

5.  Hold down 

lock lever

 and 

move 

hitch pin handle

 

forward to fully engage 

hitch 

pins

 in 

receivers

. Release 

lock lever

 to engage 

lock 

pin

 into hole in 

lock pin 

bracket

.

6.  Move 

power switch

 to LEFT 

or "PLOWING" position.

1.  From inside the cab, lower 

snowplow onto ground with 

blade

 straight. Turn plow 

control in vehicle OFF.

2.  Push and hold 

power switch

 

RIGHT and push and hold 

attach/detach operation 

switch

 RIGHT momentarily 

to rotate 

headgear

 up and 

release load on 

hitch pins

.

3.  Hold down 

lock lever

 to 

disengage 

lock pin

 and 

move 

hitch pin handle

 

rearward into notch in end of 

slot to fully disengage 

hitch 

pins

 from 

receivers

.

4.  Push and hold 

power switch

 

RIGHT and push and hold 

attach/detach operation 

switch

 LEFT to rotate 

headgear

 down until 

stand

 

contacts ground and 

hydraulic unit turns OFF.

5.  Unplug electrical harnesses.

52203 .05

US patents  6,276,076; 6,393,737; 6,408,549; 6,412,199; 6,442,877; 6,615,513; 7,134,227; 7,400,058; 

7,430,821; 7,737,576; CAN patents  2,259,508; 2,358,145; 2,358,354; 2,466,195; and other patents pending.

Keep fingers away from snowplow and truck attachment points.

WARNING

Read Owner's Manual for complete instructions.

DETACH –

Steps 3 & 4

 ATTACH –

Steps 4 & 5

Receiver

Receiver

Pins

Headgear

Stand

Hitch Pin

Headgear

Slots

Hitch Pin

Holes

Lock

Lever

Lock

Lever

Hitch Pin

Handle

Hitch

Pin

Handle

Lock Pin

Bracket

Lock

Pin

Lock

Pin

Blade

Lock Pin

Bracket

SAFETY

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.

 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

Indicates a potentially hazardous situation 

that, if not avoided, could result in death or 

serious personal injury.

WARNING/CAUTION AND INSTRUCTION 

LABELS

Become familiar with and inform users about the 

warning/caution and instruction labels on the back of 

the blade.

NOTE: If labels are missing or cannot be read, see 

your sales outlet.

Crush Hazard Label

Summary of Contents for RDV 77790

Page 1: ...snowexproducts com May 1 2020 Lit No 74912 Rev 00 A DIVISION OF DOUGLAS DYNAMICS LLC CAUTION Read this document before installing the snowplow CAUTION See your SnowEx outlet website for specific vehi...

Page 2: ...headgear down until stand contacts ground and hydraulic unit turns OFF 5 Unplug electrical harnesses 52203 05 US patents 6 276 076 6 393 737 6 408 549 6 412 199 6 442 877 6 615 513 7 134 227 7 400 05...

Page 3: ...fluid under pressure can cause skin injection injury If you are injured by hydraulic fluid get medical attention immediately SAFETY PRECAUTIONS Improper installation and operation could cause personal...

Page 4: ...3 50 M36 x 4 00 2101 2701 1468 1952 325 M16 x 2 00 231 167 M18 x 2 50 318 222 Recommended Fastener Torque Chart Size Size Torque ft lb Grade 5 Grade 8 Metric Fasteners Class 8 8 and 10 9 These torque...

Page 5: ...s 4 Remove the packaging hardware that secures the headgear to the T frame except for the clevis pins and the shipping brackets 5 Remove the fasteners and blocking that secures the T frame to the pall...

Page 6: ...d 2 Use distance d from Step 1 and the following chart to determine the proper T frame hole T Frame Hole Chart Distance d Hole 14 25 15 5 1 13 0 14 25 2 11 75 13 0 3 T FRAME TO HEADGEAR 1 Position the...

Page 7: ...using the 3 8 x 1 1 4 cap screws and 3 8 locknuts from the parts bag NOTE Failure to install stacking stops when required will result in blade lift arm or headgear damage 5 If the T frame was install...

Page 8: ...holes in wing hinges 3 Insert the pivot pin from top to bottom through all hinges as shown Pivot Pin 1 2 x 2 7 8 Clevis Pins 5 32 x 1 1 2 Cotter Pins 4 Move the snowplow into a normal operating positi...

Page 9: ...deflector using two 3 8 x 1 1 2 cap screws and 3 8 locknuts 9 Install the blade guides with 5 16 x 1 cap screws and 5 16 locknuts as shown Blade Guide 5 16 Locknuts 5 16 x 1 Cap Screws INSTALLATION IN...

Page 10: ...res to the headlamps 6 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 tight...

Page 11: ...he headgear so that the hitch pin is at the same height as the hitch pin hole height X 3 While depressing the stand move the attach detach lever rearward into the detach position to lock the stand int...

Page 12: ...rvoir NOTE Add fluid only when the blade is resting fully on the ground 5 Replace and tighten the breather WARNING To prevent accidental movement of the blade always turn the control OFF whenever the...

Page 13: ...the blade hits or drops on you you could be seriously injured Quill FINAL INSPECTION AND ADJUSTMENT 1 Fully angle the blade in both directions in raised and lowered positions Adjust hose fittings wrap...

Page 14: ...late adjust the center cutting edges as follows 2 Loosen the four 5 8 x 2 center cutting edge carriage bolts but do not remove them 3 Slide the center cutting edges inward until they contact the space...

Page 15: ...f the cab control for safekeeping 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...

Page 16: ...rer may require or recommend optional equipment for snow removal Do not exceed vehicle ratings with a snowplow TrynEx International offers a limited warranty for all snowplows and accessories See sepa...

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