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Labrie Pendpac WITTKE RETRO FL Maintenance Manual

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Summary of Contents for Labrie Pendpac WITTKE RETRO FL

  • Page 1 ITTKE ETRO AINTENANCE ANUAL...
  • Page 3 ITTKE ETRO AINTENANCE ANUAL...
  • Page 4 Liability Labrie Enviroquip Group reserves the right to make design changes or improvements in its products without imposing any obligation upon itself to change or improve previously manufactured products. In no event shall Labrie Enviroquip Group assume liability for any incidental, consequential or...

  • Page 7: Table Of Contents

    Important Notes for Maintenance Personnel ......................... 1 Mission Statement ................................... 1 Vision Statement ....................................1 NHTSA Warning ....................................2 To Contact Labrie Plus ..................................3 In the U.S....................................... 3 In Canada ...................................... 3 Safety ................... 5 Safety Precautions for the Owner ............................... 5 Safety Precautions for the Employee ............................
  • Page 8 vi Table of Contents Tailgate Lock Valves ................................24 Tailgate Restrictor Fittings ..............................24 Hoist Restrictor/Check Valve ............................... 25 Backup Alarm ................................... 25 Global Motion Sensors (optional) ............................. 26 Rear Vision Camera ................................. 26 Overheight Warning Lamp ..............................27 Body Raised Buzzer ................................27 Access Door Open Buzzer ..............................
  • Page 9 Table of Contents vii Major Electrical Components ............................. 60 L TM The W Control System ........................... 61 ITTKE ETRO MDM Operations ..................................61 Measurements Screen ................................62 How the Electrical System Works ............................69 Circuit Breakers and Fuses ..............................71 Proximity Switches .................................
  • Page 10 viii Table of Contents...

  • Page 11: Introduction

    In addition, these mechanics should be fully versed in the operation of this unit. Mission Statement Labrie Enviroquip Group is dedicated to providing innovative designs, customized quality equipment and elite customer service. Vision Statement The Labrie Enviroquip Group Team will successfully lead the way the world views waste management.

  • Page 12: Nhtsa Warning

    ITTKE ETRO cause a crash should be immediately reported to the National Highway Traffic Safety Administration. In addition, these defects should be immediately reported to Labrie Enviroquip Group by notifying our service department. To contact NHTSA, you may call: 1( 800) 424 9393 or 1 (202) 366 0123 Written communications may be directed to: NHTSA, U.S.

  • Page 13: To Contact Labrie Plus

    E-mail (Customer Service): service@labriegroup.com For technical support and parts ordering, the serial number of your vehicle is required. Therefore, MPORTANT Labrie Enviroquip Group recommends to keep record of the information found on the VIN plate, which is located in the cab.
  • Page 14 4 Introduction...

  • Page 15: Safety

    Safety Precautions for the Owner Labrie Enviroquip Group strongly believes that safety is a team effort. Bearing this in mind, we encourage the employer to follow these guidelines: Provide all employees – both operators and maintenance personnel –...

  • Page 16: Safety Precautions For The Employee

    6 Safety Provide operators with the necessary route rules and regulations. Instruct operators on awareness to road hazards such as other people, obstructions and dimensional constraints which includes familiarity with the vehicle width and height, both while at rest and during operation. Ensure that all vehicle safety features, such as body and tailgate props are properly used by all personnel when operating or servicing the vehicle.

  • Page 17: Overheight Caution

    Safety 7 4. Back up the truck while unloading refuse. 5. Hoist the body while on uneven ground. 6. Prop a loaded body with the hoist safety prop. 7. Drive with arms in overheight condition. 8. Enter the hopper or main body unless the engine is shut off, the key is removed and there is an out of service tag on the steering wheel.

  • Page 18: Safety Decal Categories

    8 Safety Safety Decal Categories Recognizing and understanding the safety decals affixed to your vehicle can prevent damage and could prevent injury or even death. Decals fall into the following four categories: Figure 2-1 Safety decal categories Safety Decals and Locations Do not Enter! Stay Clear of Door...

  • Page 19: Do Not Enter Hopper! Extreme Crush Hazard

    Safety 9 Do not Enter Hopper! Extreme Crush Hazard Read and Understand Your Operating Manual Before Using This Vehicle...

  • Page 20: Keep Hands And Body Clear

    10 Safety Keep Hands and Body Clear...

  • Page 21: Stand Clear Of Tailgate! Extreme Crush Hazard

    Safety 11 Stand Clear of Tailgate! Extreme Crush Hazard Service Hoist Handle...

  • Page 22: Do Not Climb On Canopy

    12 Safety Do Not Climb on Canopy Check All Bridge Clearances...

  • Page 23: Do Not Drive When Overheight Warning Lamp Is Illuminated

    Safety 13 Do Not Drive When Overheight Warning Lamp is Illuminated Tailgate Locks Must Be In Place...

  • Page 24: Crush Hazard. Body May Fall

    14 Safety Crush Hazard. Body May Fall The Top of This Vehicle is High Enough...

  • Page 25: Danger Of Electrocution/Damage To Vehicle

    Safety 15 Danger of Electrocution/Damage to Vehicle Frame is Heat Treated...

  • Page 26: Disconnect All Batteries And Electronic Control Modules

    16 Safety Disconnect All Batteries and Electronic Control Modules Remove Cap Slowly...

  • Page 27: Extension Ladder Must Be Secured

    Safety 17 Extension Ladder Must Be Secured Lubrication Points...

  • Page 28: Service Hoist Instructions

    18 Safety Service Hoist Instructions Air Tank Drain Notice...

  • Page 29: Setting The Tailgate Props (Curb Side)

    Safety 19 Setting the Tailgate Props (Curb Side)

  • Page 30: Setting The Tailgate Props (Street Side)

    20 Safety Setting the Tailgate Props (Street Side)

  • Page 31: Diesel Fuel Notice

    Safety 21 Diesel Fuel Notice Programmed PTO Settings : Do not use PTO settings; use MDM for overspeed. Hydraulic Fluid Notice...

  • Page 32: Hydraulic Oil Grade Notice

    22 Safety Hydraulic Oil Grade Notice Hydraulic Oil Fill Level Failure to heed all safety decals on your vehicle and in this manual may lead to injury or death. MPORTANT...

  • Page 33: Safety Features

    Safety 23 Safety Features Your unit may not have all the safety features explained here. Check with your supervisor or maintenance department if you have any questions or concerns. Automatic Grease System (optional) This system ensures all cylinder pins and related parts receive the required amount of grease. Consult the OEM manual for more information.

  • Page 34: Tailgate Lock Valves

    24 Safety Tailgate Lock Valves The tailgate lock valves ensure that the tailgate, when open, must be “powered down”. In other words, it cannot close via gravity. These lock valves also prevent the tailgate from unlocking if it is not “powered up”.

  • Page 35: Hoist Restrictor/Check Valve

    Safety 25 Hoist Restrictor/Check Valve Located in the port of the hoist or service hoist cylinders, the restrictor prevents rapid descent of the body in the case of a hose failure. Backup Alarm Located at the rear of the chassis, the backup alarm emits an audible warning whenever the transmission is in “reverse”...

  • Page 36: Global Motion Sensors (Optional)

    26 Safety Global Motion Sensors (optional) These tailgate-mounted sensors set the parking brake and sound a buzzer when an obstruction is detected behind the unit. Consult the OEM manual for more information. Figure 2-3 Global motion sensor Rear Vision Camera A camera is mounted to the tailgate, sending a live image of the view behind the truck to the in-cab mounted monitor.

  • Page 37: Overheight Warning Lamp

    Safety 27 Overheight Warning Lamp A red indicator lamp with label is mounted to the dash so as to be in the driver’s field of view when looking forward. The indicator illuminates whenever the arms/forks are above 13’-6” in height. Body Raised Buzzer An audible warning is transmitted by the MDM control panel whenever the body is raised and not at rest on the chassis frame.

  • Page 38: Pump "On" Indicator Lamp

    28 Safety Pump “On” Indicator Lamp A red indicator lamp, located in the pump engage switch, illuminates whenever the hydraulic pump is Auto Pack Indicator Lamp A green indicator lamp, located in the Auto Pack control button, illuminates whenever Auto Pack is engaged.

  • Page 39: Tailgate Props

    Safety 29 2. Set the chassis parking brake. 3. Check for overhead clearance. 4. Chock the front and rear tires. 5. Remove left and right body latch pins. 6. Unlatch the body safety prop spring pin latch. 7. Raise the body far enough to allow the body safety prop to hang vertically. : Do not raise the body higher than is required to engage the body safety prop.

  • Page 40: Tailgate Lock Blocks

    30 Safety Close the tailgate as far as required so that the props engage the receptacles attached to the body frame. Complete the Lockout/Tagout procedure (see Lockout/Tagout Procedure on page 37). Tailgate Lock Blocks The tailgate lock blocks are an integral part of the tailgate latch. The blocks must be engaged to prevent unintentional opening of the tailgate, which could cause serious damage to the tailgate and latch.

  • Page 41: Safety Interlock Tests

    Safety 31 Safety Interlock Tests Your W is equipped with a number of safety interlock functions that are ITTKE ETRO programmed into the electronic control unit (ECU). Testing of all interlock functions should become an integral part of your daily inspection as an operator. If any of these test fail, do not operate your vehicle until it has been repaired.

  • Page 42: Test: Auto Pack Function Locked Out By Tailgate Ajar

    32 Safety If the packing panel moves in either instance, refer to “Adjusting Top Door Proximity Switch” on page 78. Test: Auto Pack Function Locked Out by Tailgate Ajar Each tailgate latch hook triggers a proximity switch when fully closed. These proximity switches, when triggered, allow the ‘Auto Pack’...

  • Page 43: Test: Arms 'Up' Locked Out By Packer Panel Not Home

    Safety 33 Test: Arms ‘Up’ Locked Out by Packer Panel Not Home The packer panel triggers a proximity switch in the fully forward or ‘home’ position. This proximity switch, when triggered, allows the operator to raise the arms. If the proximity switch is not triggered, the operator can only raise the arms until they trigger overheight proximity switch #1, which roughly corresponds to the arms being at a height that puts the fork pivot tube above the cab windshield.

  • Page 44: Test: Tailgate Function Locked Out By Body Raised

    34 Safety Activate arms ‘down’. The arms should not move. Caution! Be careful not to cause damage to the cab when performing this test. If the arms move, refer to “Adjusting Body Raised Proximity Switch (Tip-to-Dump Units)” on page 85. Test: Tailgate Function Locked Out by Body Raised On full eject units with a service hoist or on tip to dump units, the body triggers a proximity switch when it is down and at rest on the chassis frame.

  • Page 45: Lockout Summary

    Safety 35 Lockout Summary Table 1 Lockout summary Function Locked Out Locked Out By Auto Pack and/or Packer “Full Eject” Top Door Prox. Switch Auto Pack Tailgate Prox. Switches Packer “Full Eject” Tailgate Prox. Switches Auto Pack and/or Packer “Full Eject” Arm Overheight Prox. Switch #1 Packer “Full Eject”...

  • Page 46: Warning Lamp/Buzzer Tests

    36 Safety Warning Lamp/Buzzer Tests Distinct positions of moving body parts, such as the packer panel, top door, rear door, arms and forks will trigger either of the amber warning lamp, the red warning lamp, the in-cab buzzer or the chassis backup alarm.

  • Page 47: Lockout/Tagout Procedure

    Safety 37 Table 3 Warning lamps (Cont’d) Amber Green Action Red Danger Red Pump On Caution Overheight Autopack Top Door Not Open Tailgate Ajar Tailgate Fully Open Body Raised Lockout/Tagout Procedure The lockout/tagout procedure should be followed whenever you are inspecting, cleaning or repairing your W ITTKE ETRO...

  • Page 48: Lifting Components For Service

    Do not stand or walk under a load that is suspended unless there are additional safety blocking devices in place. While Labrie Enviroquip Group has included the specifications of the lift equipment we use, these specifications are intended as guides only. It is your responsibility to ensure your lift equipment meets all safety standards and that only qualified personnel attempt these lifts.

  • Page 49: Securing The Rear Body

    Safety 39 If the fork cylinders are removed or disconnected, the forks can rotate freely - tie each fork to the arms before lifting the arms and forks assembly. Place a lift sling rated to 6400 lbs. (2.903 tonne) in the middle of the fork pivot tube. Complete job, reconnect.

  • Page 50: Lifting The Front Body

    40 Safety To secure the rear body: Inspect the welds on the body’s lifting lugs and repair, if necessary (see Figure 2-5). Position the lift beam with chains 75 in. on center above the tailgate. Attach a 5 ft. (1.524 m) long chain to each end of the lift beam. Thread the loose end of each chain through a shackle.
  • Page 51 Safety 41 The lift beam should be 20.32 cm x 10.16 cm x 20.32 cm (8 in. x 4 in. x 8 in.) with .9525 cm (3/8 in.) grade 80 lift chains with a working load limit of 3.2206 tonne (7100 lbs.) at 90 degrees. To lift the front body: Secure the rear body.

  • Page 52: Lifting The Body

    42 Safety Figure 2-8 Proper lift setup Lifting the Body Lifting the Front Loader body requires securing both the front body and the rear body to a lift beam. You will need two lift spools and two lift beams. Never lift the rear body until you have secured the front body to another lifting device. MPORTANT To lift the body: Secure the rear body to a lift beam.
  • Page 53 Safety 43 Lift the body. Figure 2-9 Proper lift setup...
  • Page 54 44 Safety...

  • Page 55: Maintenance

    Also refer to “Lubrication” on page 49 Initial lubrication carried out by Labrie is sufficient for production and transport purposes ONLY! With your safety in mind, we would like to remind you...

  • Page 56: Oil Identification Tag

    ITTKE ETRO (see Figure 3-1). This non-permanent tag specifically describes the hydraulic oil your equipment was filled with at the Labrie factory. Record this data in your service records for future reference. Figure 3-1 Oil identification tag Hydraulic System Settings...

  • Page 57: Consumable Maintenance Materials

    Hydraulic oil: (The oil Identification Tag attached to the Castrol HVI 32 or equivalent hydraulic tank describes the oil the unit was filled with when it left the Labrie factory. Refer to “Oil Identification Tag” on page 46.) Suction line 100 mesh suction...

  • Page 58: Welding Information

    48 Maintenance Welding Information Caution! prior to welding on packer body. Disconnect all batteries and electronic modules The W consists primarily of 5 types of steel. ITTKE ETRO ASTM A569 - mild sheet steel, commercial grade ASTM A715 - high strength, low alloy sheet and plate ASTM A514 - high strength, quenched and tempered steel QT440 - abrasion resistant steel Ultra Wear - abrasion resistant steel...

  • Page 59: Lubrication

    Maintenance 49 Lubrication LUBRICATE, LUBRICATE, LUBRICATE!!! Insufficient lubrication is a major cause of component failure. The W , like most equipment, has numerous points that require grease ITTKE ETRO (see Figure 3-3). Figure 3-3 Lubrication points See Table 1 on page 50 for a complete list of lube locations and the frequency they should be greased.

  • Page 60: Maintenance Checklist

    50 Maintenance Maintenance Checklist Table 1 Lubrication Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Packer blade cylinder pins (4) Follower plate pin and cylinders (3) Arm cylinder pins (4) Arm pivot tube collars Fork cylinder pins (4) Fork pivot tube collars (2) Tailgate hinge pins (2) Tailgate cylinder pins (4)
  • Page 61 Maintenance 51 : Some lube points might be greased by an automatic grease system, if equipped. Consult manufacturer’s manual for information. Table 2 Cleaning Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Safety decals Mirrors, lamps, windows, camera Clear debris at tailgate seal Clear contact surfaces of body and chassis...
  • Page 62 52 Maintenance Table 3 Mechanical Inspection (truck at rest) [cont’d] Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Service hoist cylinder ears (4), pins (4), and retaining hardware Service hoist cylinder mounting bolts on chassis (quantity varies) Hoisit safety prop and prop sockets (inspect prior to using) Arm assemblies (2) Arm assembly mounting bolts,...
  • Page 63 Maintenance 53 Table 3 Mechanical Inspection (truck at rest) [cont’d] Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Follower plate travel channels Front rubber scraper and holding strip Interior of hopper and main body walls, floor, and roof Exterior of hopper and main body walls, floor and roof Side access door assembly...
  • Page 64 54 Maintenance Table 4 Operation (main controls) [cont’d] Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Observe travel is smooth and even, speed is normal, controls are responsive. Forks up/down Arms up/down Cart attachment Parker Blade Pack/return/autopack/autostop Follower blade Pack/return/autopack/autostop Top door open/close Tailgate open/close...
  • Page 65 Maintenance 55 Table 4 Operation (main controls) [cont’d] Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Arms up lockout/top door test (Top door proximity switch) Arms up lockout/packer blade test (Packer blade ahead proximity switch) Body raised test (Body raised proximity switch) Other O = Operator...
  • Page 66 56 Maintenance Table 5 Operation (misc. controls and features) [cont’d] Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Pack lamp Backup lamps Backup flood lamps Strobe lamp Camera dual lamps Alternating flashers Backup alarm Global motion sensors Check miscellaneous control console devices are functioning Throttle advance switch Arms activated autopack switch Fork width switch...
  • Page 67 Maintenance 57 Table 6 Hydraulic system (cont’d) Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Clean the breather cap (replace if necessary) [more often if required] Clean suction strainer with varsol/ compressed air (replace if damaged) [more often if required] To protect the hydraulic components of your new equipment, the return line filter MUST BE CHANGED AFTER THE FIRST 50 HOURS OF USE.
  • Page 68 58 Maintenance Table 6 Hydraulic system (cont’d) Pre- 1000 Item Description Daily Weekly Monthly trip landfill hours Check pack circuit pressure switch setting. Adjust if required. *134 Inspect arms up/down cam(s) are secure and tripping deceleration valve(s). Other O = Operator b.

  • Page 69: Further Notes On Lubrication

    Maintenance 59 Further Notes on Lubrication Although a specific manufacturer’s brand of oil is listed in the Consumable Maintenance Materials list (see Consumable Maintenance Materials on page 47), similar oil by other manufacturers may be used. Use the recommendations below for guidelines. Also, consult the oil manufacturer to ensure your exact application needs are fulfilled.

  • Page 70: Major Electrical Components

    60 Maintenance Major Electrical Components In-cab Control Box The in-cab control box houses switches and indicator lights to control the various functions of the vehicle. The function of these switches and indicator lights is described in the Operator’s Manual. IQAN® Software Based Control System The IQAN®...

  • Page 71: The Wittke Retro F Ltm Control System

    Maintenance 61 Figure 3-5 Expansion module in air control box (300 series) The W Control System ITTKE ETRO The W is controlled by a logic control system called IQAN® MDM. This system ITTKE ETRO uses 3 XT2 modules that read inputs and distribute outputs. The W system is an “electric over air over hydraulic system”, which is controlled ITTKE...

  • Page 72: Measurements Screen

    62 Maintenance When you first turn on the MDM screen the Pendpac version will appear. You can then scroll up or down through all of your warning and danger indications or positions of your body. In order to clear all the warnings off of your screen you may press the OK (F1) button all the way to the left bottom of your screen.
  • Page 73 Maintenance 63 Voltage inputs XT2-A0-C1: __(100S) Auto-Pack MOM Extend MOM Retract MOM Pump Engage Tailgate UP MOM Tailgate DN MOM Top Door OPN MOM Top Door CLS MOM Access Door Prox Body Prox XT2-A1-C1: __(200S) Joystick Select Hoist UP MOM Hoist DN MOM Forks Wide MOM Forks NAR MOM...
  • Page 74 64 Maintenance XT2-A2-C1: __(300S) Arm Stowed Prox Arm Over Prox Fork Stowed Prox Top Door Prox Voltage Measure Inputs Digital Outputs XT2-A0-C1: __(100S) Red LED Yellow LED Pump Engage Hoist UP Hoist DN Auto-Pack Light...
  • Page 75 Maintenance 65 XT2-A1-C1: __(200S) Joystick Selector OCB Joystick LOW Fork Tilt LO Arms Overheight Pump Indicator Back Up Alarm XT2-A2-C1: __(300S) Arm UP Lockout Joystick Lockout Forks Wide Forks Narrow Digital Measure Outputs...
  • Page 76 66 Maintenance Current Outputs XT2-A2-C1: __(300S) Tailgate UP/DN :17/18 :31/32 Top Door Open/Close Open :19/20 Close :33/34 Current Measure Outputs PWM Outputs XT2-A2-C1: __(300S) Pack Retract...
  • Page 77 Maintenance 67 PWM Measure Outputs Function Parameters You can adjust the function parameters of your vehicle. The only function parameter for the front loader is the arm cycles it takes for the optional arms activated auto-pack. Apply the following procedure to set the function parameters: Go to the main menu.
  • Page 78 68 Maintenance Display Screen Settings You can adjust the display screen settings to include contrast, LCD lighting, clock and audible alarm sound. To adjust display screen settings, do the following: Go to the main menu. Scroll up or down to the settings function. Press OK (F1).

  • Page 79: How The Electrical System Works

    : Always refer to the appropriate schematic for reference and troubleshooting. Laminated schematics and an overview were sent to you at time of delivery. Please call LabriePlus for free replacements or visit our website (see To Contact Labrie Plus on page 3). MDM Control Panel (located centrally in the cab) The Front Loader’s push buttons, toggle switches and warning lamps are located in a centrally...
  • Page 80 70 Maintenance Pneumatic Box Mounted on the body header, the pneumatic box houses the solenoidoperated air valves that direct air to the air actuators on the hydraulic valve bank. Power and ground are required to energize the solenoid so air can pass to the work section dedicated to that particular air valve. Figure 3-8 Pneumatic box Proximity switches...

  • Page 81: Circuit Breakers And Fuses

    (see Figure 3-11). Caution! Never hold a circuit breaker button down when it refuses to reset. Severe electrical damage may result. Report this to your supervisor and maintenance department. : Consult the OEM manual for information on equipment not manufactured by Labrie.

  • Page 82: Proximity Switches

    72 Maintenance Function Amps lOCATION Pump & pack circuits In-cab box Marker lamps In-cab box Backup lamps In-cab box Pack & hopper lamps In-cab box Strobe lamp In-cab box Alternating flashing lights In-cab box Figure 3-11 Manual reset switches Proximity Switches Proximity switches act as remote electrical on/off switches.
  • Page 83 Maintenance 73 Location of Proximity Switches (curbside) Side access door proximity switch Body raised Half pack Packer blade proximity proximity ahead proximity switch switch switch Location of Proximity switches (streetside) Top door proximity Tailgate fully open switch proximity switch Forks fully retracted Arm partially raised Tailgate ajar proximity switch...
  • Page 84 74 Maintenance Adjusting Gap between the Proximity Switch and the Tab If any of the proximity switches installed on the W is not triggered when it should ITTKE ETRO be, an adjustment of the gap between the proximity switch and the tab facing it must be performed. To do so: COMPLETE lockout/tagout procedure (see Lockout/Tagout Procedure on page 37).
  • Page 85 Maintenance 75 Figure 3-13 Packer blade ahead proximity switch Testing Procedure: Empty all refuse from the body and set the engine to 1500 rpm. Initiate an Auto-Pack cycle and observe the ‘home’ position of the blade when the cycle completes. Adjust the Packer Blade Ahead Proximity Switch if: •...
  • Page 86 76 Maintenance Remove the cover protecting the packer blade ahead and half pack proximity switches and check that the actuator bolt is 3 3/4 in. (9.52 cm) from the front end of the slot and perpendicular to the front header. Adjust if necessary. : Full Eject: The actuator bolt is attached to a clamp that should be 1/16 in.
  • Page 87 Maintenance 77 Adjustment Procedure: Move the packer blade to the half pack position, switch OFF the hydraulic pump, shut the engine off and remove the key (see Lockout/Tagout Procedure on page 37). Remove the cover protecting the packer blade ahead and half pack proximity switches and check that the actuator bolt is 3 3/4 in.
  • Page 88 78 Maintenance Testing Procedure: Open the side access door approximately 2” (5 cm) and attempt to operate any hydraulic function. All hydraulic functions should be disabled. Caution! Injury or death may occur if you attempt to enter the body while the packer blade or arms are working.
  • Page 89 Maintenance 79 Repeat steps until proximity switch is properly adjusted. Adjusting Tailgate Fully Open Proximity Switch The tailgate fully open proximity switch allows the packer to complete a full eject sweep when the tailgate is fully open. Location: The tailgate fully open proximity switch is located on the body roof, near the street-side tailgate hinge.
  • Page 90 80 Maintenance Figure 3-18 Tailgate ajar proximity switch (protective cover removed) Adjustment Procedure: On the MDM control module, press the REAR DOOR toggle switch down while pressing the DOOR ENABLE switch to relieve any pressure on the tailgate latch blocks. Remove both tailgate locks.
  • Page 91 Maintenance 81 Figure 3-19 Tailgate mercury switch Adjustment Procedure: Complete the Lockout/Tagout Procedure (see Lockout/Tagout Procedure on page 37). Push out the left rear stop/tail light. Ensure the mercury switch body is fully inserted into the mounting bracket clips, and positioned the correct way around.
  • Page 92 82 Maintenance Figure 3-20 Arm partially raised proximity switch Adjustment procedure: Lower the arms. Complete the Lockout/Tagout Procedure (see Lockout/Tagout Procedure on page 37). Loosen the proximity switch mounting nuts. Slide the switch forward or backward in the mount to achieve a gap of approximately 1/4” with the tab. Loosen the cam’s retaining bolts and the locking setscrew if necessary to achieve the required gap.
  • Page 93 Maintenance 83 Figure 3-21 Arm fully retracted proximity switch The fork fully retracted proximity switch sends a signal to the warning lamp on the MDM control module to illuminate and to the monitor to display the “Arms not Stowed” message if the arms are not completely parked.
  • Page 94 84 Maintenance Figure 3-23 Distances to achieve 31” 57-3/8” Adjust the tab so it activates the arm fully retracted proximity switch. Lower the arms. Retract the forks until a distance of 31 inches is achieved between both fork cylinder attachments (center to center) [see Figure 3-23, (B)].

  • Page 95: Pneumatic System

    Maintenance 85 Adjusting Body Raised Proximity Switch (Tip-to-Dump Units) The body raised proximity switch is ACTIVATED when the plate welded to the underside of the body loses contact with the chassis. The proximity switch then triggers the “Body Raised” warning message to appear on the MDM display screen.

  • Page 96: How The Pneumatic System Works

    86 Maintenance How the Pneumatic System Works The Pneumatic system includes: Air Supply Filtering System Controls Valve Box and Air Valves Air Actuators Air supply Air is drawn from the chassis air tank, passes through an air and mist filter system and into the valve box.
  • Page 97 Maintenance 87 Figure 3-26 In-line lubricator Controls Standard arm/fork control is by means of a dual handle joystick, mounted next to the driver. Figure 3-27 Dual handle joystick The arms up joystick’s air lines are the only lines with a cutout valve. This cutout valve cuts air to the joystick and to the arm up function when the packer is not in the ‘home’...
  • Page 98 88 Maintenance The throttle advance switch fitted to the outside control station will advance the engine RPM to 1500 when activated. The transmission must be in neutral, and the engine ECM programmed to act on the input signal. With the throttle advance switch in the “auto” position, the system will advance to 1500 RPM when the PACK, RETURN or AUTOPACK functions are activated.
  • Page 99 Maintenance 89 Figure 3-30 Valve Box Supply air from the chassis air tank passes through the filters then feeds the air valves in the valve box. These normally closed air valves are grouped into banks capped with manifold ends with ports for supply and exhaust air to be routed.
  • Page 100 90 Maintenance Air actuators Air from the air valves and joystick is routed to the air actuators mounted on the hydraulic valve sections. The air actuators are dedicated to a particular hydraulic function and influence the direction in which the valve spool is moved. Once the air supply is removed from the actuator, the valve spool is centered by its spring, and the actuator returns to the neutral position.

  • Page 101: Pneumatic System Schematics

    Maintenance 91 Pneumatic System Schematics Each W unit is provided with its specific schematic. Please refer to this schematic ITTKE ETRO for more details on the pneumatic system of your unit. Commercial Front Loader...
  • Page 102 92 Maintenance Residential Front Loader...
  • Page 103 Maintenance 93 Tip-to-Dump...

  • Page 104: Hydraulic System (Commercial Type Fl)

    94 Maintenance Hydraulic System (Commercial Type Fl) : The hydraulic system section is divided by body type (commercial, residential, tip-to-dump). The first section, Commercial Front Loader, represents a standard configuration. Residential Front Loader and Tip-to-Dump Front Loader variations follow. Hydraulic Oil Tank The hydraulic oil tank is a 55 gallon capacity reservoir mounted to the chassis frame.

  • Page 105: Return Line Filter Element

    Maintenance 95 Return Line Filter Element While every effort is made at the Labrie Enviroquip Group factory to ensure clean hydraulic systems, it should be noted that most hydraulic system manufacturers recommend the filter be replaced after a break-in period. Labrie’s recommendation is to replace this filter element after a break-in period of 50 hours operational use.

  • Page 106: Hydraulic Oil

    96 Maintenance Carefully remove the element by the handle, rotating it as you do so to release suction. Remove and retain the yellow contamination retainer. Clean and install onto the new filter. Inspect O-rings and housing for damage. Replace as necessary. Moisten sealing surfaces (with oil) on the filter housing and cover plate.

  • Page 107: Hydraulic Pump

    The renewal interval of hydraulic oil may be determined by operational duty cycle, operating conditions and local maintenance schedule. Labrie Enviroquip Group recommends hydraulic oil be replaced or filtered every 1000 hours. : Do not mix different brands of oil. In doubt, drain and refill with new oil.

  • Page 108: Pressure Relief Valve

    98 Maintenance Working Sections Hopper top door, tailgate, arms, forks and pack circuits are controlled by a work section dedicated to each function. Air actuators attached to the work section shift the spool in the desired direction to allow pressurized oil to operate the hydraulic cylinder. Returning oil is allowed to escape to tank via the return passage, outlet section &...

  • Page 109: Work Circuits (Residential)

    Maintenance 99 1. Hopper Top Door Circuit: The hopper top door circuit includes one double-acting hydraulic cylinder and two flow restrictors. 2. Tailgate Circuit: The tailgate circuit consists of two double-acting hydraulic cylinders, two lock valves and two flow restrictors. 3.

  • Page 110: Pack Circuit Dump Valve

    100 Maintenance For adjustment procedure, refer to “Adjusting the Arms Up Deceleration Valve” on page 107. Pack Circuit Dump Valve The pilot-operated check valve (dump valve [see Figure 3-40]) is fitted into the pack hydraulic circuit for the purpose of speeding up the return stroke of the packer blade. Figure 3-40 Dump valve Pressure in the pilot line during the return stroke opens the dump valve and allows approximately...

  • Page 111: Tailgate Lock Valves

    Maintenance 101 Location: The pressure switch is fitted onto the front header cross tube, next to the main hydraulic valve. For adjustment procedure, refer to “Adjusting the Main System Pressure” on page 109. Tailgate Lock Valves The lock valves (see Figure 3-42) provide a hydraulic lock to keep the tailgate cylinders from bleeding oil back into the system.

  • Page 112: Hydraulic System (Residential Type Fl)

    102 Maintenance To adjust the service hoist pressure: Loosen locknut. Using and allen wrench, turn the adjustment screw clockwise ½ turn. Tighten locknut. Figure 3-43 Service hoist pump Figure 3-44 Adjustment screw Hydraulic System (Residential Type Fl) The hydraulic system on a residential Front Loader with the cart tipper option includes: Priority Valve, Directional Control Valves, Pressure Relief Valves, and...

  • Page 113: Residential Main Valve Bank

    Maintenance 103 While the priority valve cartridge is adjustable plus or minus 20 percent, it is factory set and should not require adjustment. Caution! Tampering with the priority flow may exceed cart tipper manufacturer’s recommendations and void warranty. Location: Front header, behind the driver’s side of the cab, next to the main valve. Figure 3-45 Priority valve Residential Main Valve Bank...

  • Page 114: Auxiliary Hydraulic Attachment Work Section

    104 Maintenance Auxiliary Hydraulic Attachment Work Section The uppermost of the working sections, the auxiliary hydraulic attachment work section (see Figure 3-47) commonly directs oil to the cart tipper attachment and receives oil from the top inlet section. The outlet ports are equipped with work port relief valves preset to 1500 psi. These protect the cart tipper circuit from excessive pressure and are non-adjustable.

  • Page 115: Arms Down Deceleration Valve

    Maintenance 105 Figure 3-48 Arms down work section Arms Down Deceleration Valve The arms down deceleration valve (see Figure 3-49) automatically decelerates the arms as they are lowered. A cam bolted to the arm pivot tube rotates as the arms are lowered and gradually depresses the valve spool, reducing the flow of oil exiting the shaft end of the arm cylinders.

  • Page 116: Regeneration Valve

    106 Maintenance Location: Main hydraulic valve bank, on the front header of the body (uppermost section). Figure 3-50 Hoist work section Regeneration Valve The regeneration valve (see Figure 3-51) enables the PACK cycle to complete a rapid sweep of the hopper area.

  • Page 117: Hydraulic System Adjustments

    Maintenance 107 Figure 3-52 Regeneration valve and the PACK cycle Hydraulic System Adjustments The required hydraulic system adjustments include: Adjusting the Arms Up Deceleration Valve Adjusting the Arms Down Deceleration Valve Adjusting the Main System Pressure. Adjusting the Pressure Switch Adjusting the Arms Up Deceleration Valve For description of this valve, refer to “Arms Up Deceleration Valve”...

  • Page 118: Adjusting The Arms Down Deceleration Valve

    108 Maintenance Figure 3-53 Position the cam Tighten the retaining bolts of the cam. Lower and raise the arms while running the engine at idle speed and again while running the engine at 1500 rpm. : The arms should slow when they are approximately 18 in. (45.72 cm) away from the arm stops and gently come to rest against the arm stops.

  • Page 119: Adjusting The Main System Pressure

    Maintenance 109 5 b. Tap the cam in the required direction. 5 c. Tighten the retaining bolt of the cam and repeat step 4. Attach a container or carry can to the forks and repeat steps 4 and 5. Remove the container from the forks and repeat steps 5 and 6 until the arms decelerate with and without a container on the forks.
  • Page 120 110 Maintenance Figure 3-55 Pressure relief valve (top inlet section) Loosen the locknut and turn the screw clockwise to increase system pressure, counterclockwise to decrease. Repeat step 2. When the hydraulic pressure is set to 2250 psi, tighten the locknut and recheck. Remove the gauge and replace the plug.

  • Page 121: Adjusting The Pressure Switch

    Maintenance 111 Figure 3-56 Pressure relieg valve (mid-inlet section) Loosen the locknut and turn the screw clockwise as far as it will go. Note the starting position. Run a hydraulic function and note the reading on the gauge. This reading should be approximately 2350 psi and indicates the pressure relief setting of the top inlet section.
  • Page 122 112 Maintenance To adjust the pressure switch: : This procedure is best carried out when the body is full and the half pack proximity switch is inoperable due to insufficient packer blade travel. Check the main system pressure and verify that it is correctly set to 2250 psi. Refer to “Adjusting the Main System Pressure”...

  • Page 123: Pressure Relief Valves

    1000 psi. Hydraulic Hose Labrie Enviroquip Group uses only premium quality hydraulic hoses designed specifically for use in our hydraulic systems. All pressure hoses have a maximum working pressure of at least 3,000 psi, with a x4 burst pressure rating.

  • Page 124: Hydraulic Cylinders

    Replace any hydraulic hose which shows signs of damage. Hydraulic Cylinders Hydraulic cylinders used by Labrie Enviroquip Group incorporate the very latest designs and technology. Many cylinders feature rods treated with a nitration process to achieve exceptional wear resistance and protection against corrosion and mechanical damage (see Figure 3-61).

  • Page 125: Curotto Automated Can

    Figure 3-63 Curotto Can Details can be found in the Curotto Can “Operations and Maintenance” and “Parts and Service” manuals available from Labrie. Cart Tipper Refer to “Auxiliary Hydraulic Attachment Work Section” on page 104. Consult OEM for further information.

  • Page 126: Hydraulic System Schematics

    116 Maintenance Hydraulic System Schematics Commercial Front Loader...
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  • Page 130 Our office in the U.S. Our office in Canada 1981 W. Snell Road 175 Route du Pont Oshkosh, WI 54904 St-Nicolas, QC G7A 2T3 Toll Free: 1-800-231-2771 Toll Free: 1-877-831-8250 Telephone: 1-920-233-2770 Telephone: 1-418-831-8250 General Fax: 1-920-232-2496 Service Fax: 1-418-831-1673 Sales Fax: 1-920-232-2498 Parts Fax: 1-418-831-7561 Mailing Address...

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