Tow Plow Operators Training Tow Plow Trailer snow
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Tow Plow Operators Training Tow Plow Trailer snow plow designed to be towed with a truck and standard plow configuration 25 clearing path with a 12 front plow Improve services by: Providing faster results Reducing cost for equipment, fuel
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01
Tow Plow Operators Training<br>
02
Tow Plow Trailer snow plow designed to be towed with a truck and standard plow configuration
25’ clearing path with a 12’ front plow
Improve services by:
Providing faster results
Reducing cost for equipment, fuel and labor<br>
25’ clearing path with a 12’ front plow
Improve services by:
Providing faster results
Reducing cost for equipment, fuel and labor<br>
03
Contact Time 12 total contact hours (required)
8 hours
Classroom, hands-on and closed driving course
4 hours
Dry-run (pre-winter)
Experienced operator will drive to demonstrate proper procedures
New operator will drive and be evaluated by experienced operator
Checklist to be completed
During storm check ride (optional)
No set amount of contact time
As required by supervisor
Experienced operator will drive to demonstrate proper procedures
New operator will drive and be evaluated by experienced operator
Release to operate the Tow Plow on decision of experienced operator
Checklist to be completed during check ride<br>
8 hours
Classroom, hands-on and closed driving course
4 hours
Dry-run (pre-winter)
Experienced operator will drive to demonstrate proper procedures
New operator will drive and be evaluated by experienced operator
Checklist to be completed
During storm check ride (optional)
No set amount of contact time
As required by supervisor
Experienced operator will drive to demonstrate proper procedures
New operator will drive and be evaluated by experienced operator
Release to operate the Tow Plow on decision of experienced operator
Checklist to be completed during check ride<br>
04
Course Objectives Identify Tow Plow key components
Identify all safety hazards, terms and labels
Perform a pre and post-trip inspection
Describe preventative maintenance
Identify and become familiar with all in-cab operator controls
Demonstrate on a closed course the safe and proper Tow Plow operating procedures<br>
Identify all safety hazards, terms and labels
Perform a pre and post-trip inspection
Describe preventative maintenance
Identify and become familiar with all in-cab operator controls
Demonstrate on a closed course the safe and proper Tow Plow operating procedures<br>
05
Training This training will focus on standard configuration
There are many different configurations based on district specific orders
Tow Plows may be outfitted with on or more of the following:
1000 gallon liquid chemical tank
8 cubic yard spreader
Become familiar with your Tow Plow
Train with equipment to be used
Train in area that the operator “typically” will be assigned to<br>
There are many different configurations based on district specific orders
Tow Plows may be outfitted with on or more of the following:
1000 gallon liquid chemical tank
8 cubic yard spreader
Become familiar with your Tow Plow
Train with equipment to be used
Train in area that the operator “typically” will be assigned to<br>
06
Safety Become familiar with all operating characteristics prior to operation during a winter event
Be aware of your surroundings
Must be able to see the Tow Plow
Clean windows
Clean mirrors
In-cab adjustable mirrors
Supplemental night lighting<br>
Be aware of your surroundings
Must be able to see the Tow Plow
Clean windows
Clean mirrors
In-cab adjustable mirrors
Supplemental night lighting<br>
07
Safety and Warning Labels Become familiar with all safety warnings and labels
Replace labels when:
Damaged
Not legible
In addition, become familiar with additional equipment on the Tow Plow including:
Spreader
Liquid chemical tank(s)<br>
Replace labels when:
Damaged
Not legible
In addition, become familiar with additional equipment on the Tow Plow including:
Spreader
Liquid chemical tank(s)<br>
08
Lockout / Tagout All employees shall follow MoDOT’s
lockout/tagout procedures prior to
performing any work on the Tow Plow
Control of hazardous energy shall be complied with under Section 2.7 The Control of Hazardous Energy (Lockout / Tagout)
Follow manufacturer’s procedures
Tow Plow
Accessory equipment installed on the Tow Plow<br>
lockout/tagout procedures prior to
performing any work on the Tow Plow
Control of hazardous energy shall be complied with under Section 2.7 The Control of Hazardous Energy (Lockout / Tagout)
Follow manufacturer’s procedures
Tow Plow
Accessory equipment installed on the Tow Plow<br>
09
Inspections Follow the manufacturer’s guidelines for the inspection and maintenance schedules
Hydraulic fluid level on tow vehicle
Inspect tires for damage, proper inflation and that all lug nuts are in place and have not become loose
“STAY BACK 100 FEET” sign installed on rear of Tow Plow
All safety and warning labels are in place and legible<br>
Hydraulic fluid level on tow vehicle
Inspect tires for damage, proper inflation and that all lug nuts are in place and have not become loose
“STAY BACK 100 FEET” sign installed on rear of Tow Plow
All safety and warning labels are in place and legible<br>
10
Inspections Continued Visually inspect all hydraulic hoses and connectors for wear, damage, and leaks
Check all cables, chains, and sheaves for excessive wear and damage
Visually inspect all plow and wing units
Inspect cutting edge and shoes for excessive wear
Do not allow cutting edge to wear down into the mounting angle on the mold board<br>
Check all cables, chains, and sheaves for excessive wear and damage
Visually inspect all plow and wing units
Inspect cutting edge and shoes for excessive wear
Do not allow cutting edge to wear down into the mounting angle on the mold board<br>
11
Inspections Continued Inspect mounting arms for excessive rust, damage, cracks in welds or bent and broken sections
Inspect mounting holes on the arms and lugs for excessive wear
Mounting holes greater than 3/16” clearance are to be repaired
Dump air from the brake storage tanks on tow vehicle and the Tow Plow to remove excessive moisture and ensure that the system air pressure returns and does not leak
Add air brake drier to brake system to prevent air brake freezing during extremely cold weather<br>
Inspect mounting holes on the arms and lugs for excessive wear
Mounting holes greater than 3/16” clearance are to be repaired
Dump air from the brake storage tanks on tow vehicle and the Tow Plow to remove excessive moisture and ensure that the system air pressure returns and does not leak
Add air brake drier to brake system to prevent air brake freezing during extremely cold weather<br>
12
Lubrication Grease all required components
All plow harness sheave nipples
All hydraulic pump drive shaft nipples
Front and rear tower sheaves and swivel blocks
Wing extension arm nipples
Front and rear tower guide tracks
All front harness pivot points
Check for loose or missing fasteners (nuts, bolts, cotter pins, lock rings, etc.)
Follow lubrication procedures for the Tow Plow and accessory equipment, such as spreaders
Refer to the owner’s manual for specific intervals<br>
All plow harness sheave nipples
All hydraulic pump drive shaft nipples
Front and rear tower sheaves and swivel blocks
Wing extension arm nipples
Front and rear tower guide tracks
All front harness pivot points
Check for loose or missing fasteners (nuts, bolts, cotter pins, lock rings, etc.)
Follow lubrication procedures for the Tow Plow and accessory equipment, such as spreaders
Refer to the owner’s manual for specific intervals<br>
13
Hydraulic Set-up Check hydraulic set-up prior to use
System pressure should be 2300 psi
Set hydraulic trims/flow for steering and mold board operation
Ensure that Tow Plow response is:
Consistent
Smooth
Not too slow (may reduce reaction time for obstacles)
Not too fast (could cause handling issues and damage)
Include operator to ensure response is adequate to the operators preference and needs<br>
System pressure should be 2300 psi
Set hydraulic trims/flow for steering and mold board operation
Ensure that Tow Plow response is:
Consistent
Smooth
Not too slow (may reduce reaction time for obstacles)
Not too fast (could cause handling issues and damage)
Include operator to ensure response is adequate to the operators preference and needs<br>
14
Installation Standard Configuration
Connection of hydraulics and liquid chemicals for spreaders and liquid tanks may vary
Refer to your experienced Tow Plow operator or District General Services for additional requirements
Attach Tow Plow to tow vehicle pintle hitch
Pintle receiver locked
Raise landing gear into full up position and handle stored in tow position
Air brake lines/glad hands connected (no leaks)
Connect Tow Plow safety chains
Connect plow lift hydraulic circuit
Connect steering hydraulic circuit
7 wire trailer plug installed and all Tow Plow lights operational
6 wire plug installed and all operator lights are operational
Inspect all lighting for damage and proper operation<br>
Connection of hydraulics and liquid chemicals for spreaders and liquid tanks may vary
Refer to your experienced Tow Plow operator or District General Services for additional requirements
Attach Tow Plow to tow vehicle pintle hitch
Pintle receiver locked
Raise landing gear into full up position and handle stored in tow position
Air brake lines/glad hands connected (no leaks)
Connect Tow Plow safety chains
Connect plow lift hydraulic circuit
Connect steering hydraulic circuit
7 wire trailer plug installed and all Tow Plow lights operational
6 wire plug installed and all operator lights are operational
Inspect all lighting for damage and proper operation<br>
15
Operational Preparation Ensure brakes are released and not frozen
Gently pull against the Tow Plow with brakes released to ensure brakes are not frozen
Remove mold board lock pins
Stand behind mold board
Start at center pins working out
Installing mold board lock pins
Install for transport or when deployment is not required for extended duration
Stand behind mold board
Start with outside pins and work to center<br>
Gently pull against the Tow Plow with brakes released to ensure brakes are not frozen
Remove mold board lock pins
Stand behind mold board
Start at center pins working out
Installing mold board lock pins
Install for transport or when deployment is not required for extended duration
Stand behind mold board
Start with outside pins and work to center<br>
16
Operational Check Perform operational check prior to leaving maintenance facility
Steering (deployment and retraction)
Steering wheels move freely through full stroke of activating cylinder while moving forward
Mold board (up and down)
Determine that the mold board moves freely from full up to full down<br>
Steering (deployment and retraction)
Steering wheels move freely through full stroke of activating cylinder while moving forward
Mold board (up and down)
Determine that the mold board moves freely from full up to full down<br>
17
Deployment / Retraction Visually check to ensure that the Tow Plow is clear of traffic
USE YOUR MIRRORS
Do not deploy or retract while stopped to prevent damage to the Tow Plow’s tires
Full deployment is not required to operate
Deploy to any desired position
Always deploy to a position that will clear all obstacles
Deployment (steering) and mold board functions (up and down) can be performed at the same time if desired<br>
USE YOUR MIRRORS
Do not deploy or retract while stopped to prevent damage to the Tow Plow’s tires
Full deployment is not required to operate
Deploy to any desired position
Always deploy to a position that will clear all obstacles
Deployment (steering) and mold board functions (up and down) can be performed at the same time if desired<br>
18
Deployment<br>
19
Low Visibility Always retract the Tow Plow in low visibility conditions
Always have plenty of sight distance
Give yourself time to react and retract the Tow Plow for:
Stalled/stopped vehicles
Pedestrians
Roadway hazards
Obstacles
Guard rails, bridge ends and signs
When in doubt, pull in the Tow Plow<br>
Always have plenty of sight distance
Give yourself time to react and retract the Tow Plow for:
Stalled/stopped vehicles
Pedestrians
Roadway hazards
Obstacles
Guard rails, bridge ends and signs
When in doubt, pull in the Tow Plow<br>
20
Steering Use Tow Plow deployment to “steer” while negotiating tight turns
Left turns with right hand Tow Plows
Right turns with left hand Tow Plows
Avoid turns that require you to stop and back up
If retracted to tow position during turns, raise the mold board
Can be left in deployed position with mold board down and adjusted for obstacles to clear larger intersections<br>
Left turns with right hand Tow Plows
Right turns with left hand Tow Plows
Avoid turns that require you to stop and back up
If retracted to tow position during turns, raise the mold board
Can be left in deployed position with mold board down and adjusted for obstacles to clear larger intersections<br>
21
Steering Through Tight Turns<br>
22
Pre-trip Inspection Before each use:
Make sure that all nuts and bolts are in place and properly tightened
Make sure that all other fasteners are in place and are performing their specified function
Make sure all safety signs are in place, clean, and legible
Replace any damaged parts or excessively worn parts
Inspect for damage to any part of the plow mold board or push frame
Examples include broken or worn bolts or pins, cracked welds, bent sections, and/or excessive rusting
Inspect for damage to trip mechanisms, such as broken springs, cracked welds, and worn or broken bolts
Check all hoses for cuts, cracks, and leaks
Dump air from air brake reservoir to remove any moisture<br>
Make sure that all nuts and bolts are in place and properly tightened
Make sure that all other fasteners are in place and are performing their specified function
Make sure all safety signs are in place, clean, and legible
Replace any damaged parts or excessively worn parts
Inspect for damage to any part of the plow mold board or push frame
Examples include broken or worn bolts or pins, cracked welds, bent sections, and/or excessive rusting
Inspect for damage to trip mechanisms, such as broken springs, cracked welds, and worn or broken bolts
Check all hoses for cuts, cracks, and leaks
Dump air from air brake reservoir to remove any moisture<br>
23
Plowing Operations Always try to position the Tow Plow in lanes that keep the plow farthest away from obstacles, such as guardrails, signs, etc.
Position the Tow Plow based on type of operation and configuration of the plows
Single operation
Plow two lanes as best as possible
Plow center turn lanes
Gang operation
Have enough plows to cover shoulder to shoulder
Utilize single plow trucks for clearing shoulders and ramps
Have single plow run shoulders next to guard rails<br>
Position the Tow Plow based on type of operation and configuration of the plows
Single operation
Plow two lanes as best as possible
Plow center turn lanes
Gang operation
Have enough plows to cover shoulder to shoulder
Utilize single plow trucks for clearing shoulders and ramps
Have single plow run shoulders next to guard rails<br>
24
Gang Plowing Try to position the crown of the road between the tow vehicle and the Tow Plow
For clearing first priority (high volume) routes, operational speeds should be within the following:
Safe for conditions present
Safe for traffic volume and conditions
Reduce spacing appropriately for limited visibility
Paced so that multiple gang trucks do not become separated
Spaced so that traffic may not pass between the gang plows<br>
For clearing first priority (high volume) routes, operational speeds should be within the following:
Safe for conditions present
Safe for traffic volume and conditions
Reduce spacing appropriately for limited visibility
Paced so that multiple gang trucks do not become separated
Spaced so that traffic may not pass between the gang plows<br>
25
Starting Operations with a Gang Communication is key
Ensure all operators know the procedures to be used
Ensure that all operators know their position in the gang
Enter traffic at speeds that are safe and allow the gang to stay together<br>
Ensure all operators know the procedures to be used
Ensure that all operators know their position in the gang
Enter traffic at speeds that are safe and allow the gang to stay together<br>
26
Plowing Operations Plowing heavy snow loads may require adjusting plow / truck position
Snow loads may suddenly decrease and allow the plow to skew back to it original position, such as clearing snow under bridges and overpasses
Tow may strike guardrail and other roadside devices when it returns to its normal position after the heavy snow load is released
Plowing aggregate shoulders
Raise mold board 2” to 4” above ground<br>
Snow loads may suddenly decrease and allow the plow to skew back to it original position, such as clearing snow under bridges and overpasses
Tow may strike guardrail and other roadside devices when it returns to its normal position after the heavy snow load is released
Plowing aggregate shoulders
Raise mold board 2” to 4” above ground<br>
27
Emergency Stopping Maintain a safe distance from traffic in front of you
The Tow Plow is equipped with ABS braking system
Brake as you normally would
The procedure for stopping a trailer skid is:
Recognize the trailer skid by seeing it in your mirrors
Check mirrors anytime you brake hard to make sure the trailer is staying where it should be
Once the trailer swings out of your lane it is hard to prevent a jackknife
Stop using the brakes to get traction back
Do not use the hand brake (this will cause the trailer to continue to skid)
Once the wheels start to grip the road again, the trailer will start to straighten out and follow the tow vehicle
If the Tow Plow is deployed during a skid, leave in the deployed position<br>
The Tow Plow is equipped with ABS braking system
Brake as you normally would
The procedure for stopping a trailer skid is:
Recognize the trailer skid by seeing it in your mirrors
Check mirrors anytime you brake hard to make sure the trailer is staying where it should be
Once the trailer swings out of your lane it is hard to prevent a jackknife
Stop using the brakes to get traction back
Do not use the hand brake (this will cause the trailer to continue to skid)
Once the wheels start to grip the road again, the trailer will start to straighten out and follow the tow vehicle
If the Tow Plow is deployed during a skid, leave in the deployed position<br>
28
Lighting There are two groups of lighting on the Tow Plow:
Work/warning
Operational (DOT)
Tow Plow lighting is connected to the truck via two separate trailer plugs:
7 wire large plug for DOT vehicle lights
6 wire plug for work and warning lights<br>
Work/warning
Operational (DOT)
Tow Plow lighting is connected to the truck via two separate trailer plugs:
7 wire large plug for DOT vehicle lights
6 wire plug for work and warning lights<br>
29
Laser Guidance Lasers can be used to determine Tow Plow position in relation to roadside obstacles
Can be helpful to determine Tow Plow position when fully extended
Mounted to the truck
Only represents full Tow Plow extension<br>
Can be helpful to determine Tow Plow position when fully extended
Mounted to the truck
Only represents full Tow Plow extension<br>
30
Tow Plow Inspection Used to assist operator in Tow Plow inspections
Use to pre-trip
Can be used for pre-storm inspections<br>
Use to pre-trip
Can be used for pre-storm inspections<br>
31
Dry-Run Check List Performed pre-season
Dry-Run
Allows operator to become familiar with the Tow Plow
Identify hazards
Identify turnaround points
Discuss and plan plowing procedures<br>
Dry-Run
Allows operator to become familiar with the Tow Plow
Identify hazards
Identify turnaround points
Discuss and plan plowing procedures<br>
32
Closed Driving Maneuvers Provides several plowing scenarios including but not limited to
Ramps
Stalled vehicles
Barriers
Curves
Include additional maneuvers as needed<br>
Ramps
Stalled vehicles
Barriers
Curves
Include additional maneuvers as needed<br>
33
THANK YOU!<br>