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  • Alarm System
    • How do I know when my alarm is ready to arm?

      On the Z1100, the second light down will illuminate solid to tell you that it’s ready to arm. On the Optex all the lights, 1 through 8, will go out and the ready light will go on to tell you that it’s ready to arm.

  • Audio / Video
    • I just took delivery of my new Mobile Tool Truck. Why doesn’t the DVD audio come through the speakers?

      Go to your radio and make sure it’s set to AUXILIARY. The unit is pre-programmed to go through your speakers.

  • Batteries
    • Why isn’t my 7706 J Leece Neville charging?

      Check the connection of the sense wire from the little terminal on the positive side of the voltage regulator to the Red terminal on the battery Isolator to make sure you have 12 volt power. If you have power there, and the alternator is still not charging, then chances are that it’s a bad alternator. If the alternator was purchased locally there is a metal jumper on the positive side that has to be removed. If the metal jumper is left connected the alternator will remain live on the positive post causing the system not to be isolated and could result in damage to the regulator.

    • Why aren’t the auxiliary batteries holding power?

      The average life of batteries in a Tool Truck are a year to year and a half. Check the fluid level in the batteries. Make sure that the water levels is up if the plates are exposed that part of the battery will not recharge. You can fill the water level back up but the time on the battery is limited. Check the battery terminals for corrosion. Remove any corrosion and if it is severe replace the cable. Check the ground from the battery to the box and from the box to the frame. Remove the ground cable on the frame and clean the frame with a grinder and add a star washer in between the frame and the connection. If the cable has a lot of corrosion replace the cable. A good ground is a important part in the batteries getting and holding there charge.

    • I have power going out of my alternator. Why won’t my batteries charge?

      Isolator is a multi-battery diode block. It allows the current to go from the charging source to the battery source, and doesn’t allow the battery sources to draw between each other. Do a diode test on the isolator with a continuity tester. Test from the A1 source to one and then one to A1. Use the continuity tester one way then flipping it the other way. If the diode is open one way and closed the other way the isolator is working. Continue doing this procedure for all diodes connections.

  • Body
    • I have a Union City body and I notice, when driving in rain, that I get water dripping along my windshield. What can I do to fix this?

      Check the outside of the windscreen where the wiper arms come through the body. Seal this area with silicone.

  • Ceiling Fans
    • How do I connect my ceiling fans in the rear of my Mobile Tool Store?

      • Locate the blue wires mounted in the ceiling near the rear door.

      • Connect the blue wire to the fan wire and mount the fan to the ceiling at the wire source.

      • Go to the front of your mobile tool store, behind the front panel, you’ll see the coiled wire there.

      • Connect the wire to an available switch. If a switch is not available, you will have to connect the wire to a 20-Amp fuse. (call for more information on this procedure)

  • Engine
    • I have a diesel powered 5.9L Cummins engine and it doesn’t seem to have the power it used to. What can I do to improve the performance?

      Replace the fuel filter and on some versions there are secondary fuel filters. This secondary filter exists on most diesel vehicles. If you don’t know where to look give us a call.

    • How do I perform manual regeneration?

      If the vehicle has a Manual Regeneration Switch and the DPF Lamp is illuminated or flashing:

      • Park vehicle in an appropriate location, set parking brake, and place transmission in Park (if provided) or Neutral.

      • Set up a safe exhaust area. Confirm that nothing is on or near the exhaust system surfaces.

      • Disconnect PTO powered devices before starting regeneration.

      • Begin the parked regeneration. Note: Engine speed will increase and there may be a noticeable change to the sound of the turbocharger during the regeneration process. Once the diesel particulate filter is regenerated, the engine will automatically return to normal idle speed.

      • Monitor the vehicle and surrounding area during regeneration. If any unsafe condition occurs, shut off the engine immediately. To stop a stationary regeneration, depress the clutch, brake, or throttle pedal.

    • What are my engine’s oil requirements?

      • Only use Ultra Low Sulfur Diesel (ULSD) fuel.

      • CJ-4 (low ash) is the recommended oil.

      • CI-4+ is permitted. Read your Cummins Owners Manual for specific details.

    • Why does my engine sound vary at times?

      • The electric-actuated Variable Geometry Turbocharger causes the engine sound to vary at different times. This is normal. A slight turbo whistle may also be observed at idle conditions.

      • Compression brakes are quieter on engines with Exhaust Aftertreatment.

    • How can I optimize my fuel economy?

      Heavy-Duty Engines with Manual Transmissions:

      Maximize your time in top gear by using:

      • Progressive Shifting, or making each upshift at the lowest possible RPM.

      • Skip Shifting, or skipping gears and only using gears needed to move the load. (Note: Some transmissions will not allow skip shifting.)

      • On hills, lug back to 1200 RPM before making a shift.

      • On steep grade climbs, shift at 1300 to 1400 RPM.

  • Generator
    • Why do I have to hold the start switch for such a long time before my generator will start?

      Diesel generators have a priming pump. The pump bleeds the air out of the fuel line by pumping the fuel to the generator. There could be a fuel related issue where not enough fuel is reaching the generator.

      Gas generators have a fuel pump. Possibly, you may have a weak fuel pump or a collapsed fuel line. Is your fuel pump working? If it’s cranking but not starting, is it getting fuel? Is it getting spark?

  • Heating and Cooling
    • Why isn’t the air conditioning cooling?

      Solution: Check the condenser fans

      A. See if the condenser fans are working: Condenser fans are located underneath your Mobile Tool Store, on the driver side, near the engine compartment. When the A/C system is on, the condenser fans will be running. If the fans are not running check to see if there is power at the fans. If there is not power, check the fuses or relays. (see schematics on line or call for locations) If the fans are running proceed to step C.

      B. To help keep you system cooling efficiently you should clean the condenser with water at the beginning and end of the A/C season. If you are in a very dusty or dirty environment you may be required to do this more often Take a garden hose with a spray nozzle and wash the condenser thouroughly. Because the condenser is located underneath the Mobile Tool Store it may have accumulated dust or dirt. Dry the condenser with compressed air. If the condenser fans are working and the A/C system does not cool please follow the next step.

      C. Check Freon charge. When A/C systems are low on Freon, you may notice your compressor ‘short cycling’. Connect a set of gauges to the fittings located near the A/C compressor to verify charge. LDV charges each 40,000 BTU A/C systems with 5.8-pounds of Freon. Larger systems (check the label under your Mobile Tool Store hood) may require higher Freon amounts. If the gauge pressures read less than required, we recommend that you check the charge in the system. If the system is low on Freon check for leaks. LDV places dye in the Freon to assist technicians in finding leaks. If you find a leak, have it repaired by a qualified A/C technician. If there are no leaks in the A/C system then follow the next step.

      D. If the system pressures are off you may have a clogged drier or expansion valve (In the ACC system they use a Ford Orange orifice tube). Note: Anytime the system is open you should replace the drier. If you have a failed compressor you should also replace the expansion valve and or orifice tube and completely flush the system. Once this is completed charge the system to the proper amount of Freon.

      E. For futher information on the A/C systems or a wring schematic please contact our service dept.at 1-800-558-5986.

    • I turned my A/C on and the evaporator fans are blowing. Why am I not getting any cool air?

      Are the condenser fans working? If so, check the Freon charge.

    • Even though the fan is coming on, why is there no heat coming form my furnace?

      Determine if you are getting LP or fuel to the furnace.

      Do you hear the igniter sparking (tick, tick tick) but not lighting. Chances are you are not getting LP. In corrosion states, ninety percent of the time, the LP detector is the issue. You have a solenoid at the tank, the solenoid gets corroded. Check the connections on the solenoid. If the connections are corroded or bad then replace the solenoid.

    • The fans are coming on, but there is no spark…

      Check the electrodes in the front of the furnace. There are two screws you can remove in the front of the furnace. Remove the two screws in the front of the furnace. The electrodes look like a spark plug tip. Take them out. Clean the electrodes, re-gap them, and put them back in. See if it fires.

  • In-line fuel strainer
    • Do all Freightliner chassis have an in-line fuel strainer?

      Beginning with the 2003 models through the current model, all are equipped with an in-line fuel strainer. See attached PDF diagram for location.

  • Inverter
    • Why is my inverter constantly tripping?

      • Inverters are very sensitive to grounds. If you have an old or new inverter, and it constantly trips, there are two reasons for this issue. High voltage or low voltage. Either the alternator is spiking for some reason or it’s not charging enough and the voltage is going down.

      • Check computer inverter battery condition. If the battery condition is good then continue.

      • Check ground. Either unit ground or battery to frame ground.

  • Lift-Gate
    • Why won’t my lift gate work when I press the button on my hand-held control?

      Check the four pin connector on the side of the truck. One of those pins has to have power. Take a test light and check to see if there’s power. If there is power then continue.

      Check the connections in the remote. You can jump the pins in the plug to see if the gate works. If it doesn’t work, then remove the panel in the back.

    • Why is my lift gate coming down slower than usual?

      There could be excessive dirt build-up in the track.

      With the gate in the down position, use a degreaser on the area and pressure-wash the track to clean any dirt build-up. Then take some white lithium grease and spray the chains. This should be a regular maintenance procedure twice a year, once in the fall and once in the spring.

  • Lighting
    • Why are my interior fluorescent bulbs black on the ends?

      This happens because the fluorescent bulbs are started at both the ends of the tube. After a while the tube becomes blackened from constant start up. This will eventually inhibit the tubes ability to start up. You should replace the bulbs because eventually this may cause the ballast to work harder and may burn out the ballast.

  • Miscellaneous
    • Somebody accidentally wrote on my dry erase board with a regular marker. How can I clean it up?

      Take a dry erase marker and write over the marking and then wipe it off. If this doesn’t work use a cleaner available for dry erase boards.

    • What’s the best way to prevent my door locks from freezing up or sticking?

      Lubricate them with graphite or silicon spray on a regular schedule. Especially, the rear door locks. These locks accumulate a lot of dirt because of the lift gate.

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