Furukawa Company Group
Operation for Truck-mounted Cranes
SUPPORT

Operation for
Truck-mounted Cranes

The steps listed below are for operating the Truck-mounted Cranes.
For more details, please see the instruction manual.

Prior to operation

Inspection

Before operating the vehicle, verify it is parked on a solid, level surface and the condition of the crane has been inspected. Ensure there is no damage to the wire ropes and there are no oil leaks etc. Additionally, confirm each control lever is in the neutral position.

Inspection
Inspection

Turn on the PTO

First, start the engine in the truck cab. While keeping the clutch pedal depressed, turn the PTO switch on or pull the PTO lever and gradually release the clutch pedal.

Turn on the PTO

Extend the outriggers.

Pull the outriggers horizontally and then move the control lever to extend and place them vertically using the hydraulic pressure. Keep the following three points in mind when extending outriggers.

  1. Fully extend the outriggers horizontally
  2. If the ground surface is not solid, lay mats under the outriggers
  3. Extend the outriggers until the front tires of the truck lightly touch the ground in order to keep the truck level (center the bubble in the spirit level that is mounted on the base)
Extend the outriggers

Lower the hook

Once the stowed hook is freed, the preparation for operation is complete.

Lower the hook

Crane operation

Keep safety in mind

Keep safety in mind.

  • For details on how to read the Load indicator and Load meter, see this
  • For details on how to read the Load chart, see this

Hazardous or unsafe crane operation

Overloading

Never attempt to overload the crane as overloading may damage the crane or cause the truck to fall over, leading to a serious accident.

Overloading

Extracting objects from the ground

Extracting objects from the ground may overstress the crane, causing the crane to break. Excavate buried objects in the ground before attempting to moving them with a crane.

Extracting objects from the ground

Dragging

Diagonally dragging cargo on the ground may overstress the crane to the point that it may break. Only move objects after they have been lifted with the hook.

Dragging

Lifting more than 25% of capacity in front of the cabin

With the strength of the truck wheel drive shaft and the instability of lifting in front of the cabin taken into account, only cargo that weighs up to 25% of the normal load capacity can be lifted in front of the vehicle.
When handling cargo in front of the vehicle, keep this restriction in mind.

Lifting more than 25% of capacity in front of the cabin

For other points to note, see the instruction manual.

After operation

Put the crane in the stowed position (boom retracting, lowering, slewing)

Move the relevant levers to stow everything but the hook. Move the crane back to the original position by referencing the sticker on the base of the column.

Put the crane in the stowed position (boom retracting, lowering, slewing)

Stow and fixate the hook

If a Uni hook is not installed
Fixate the hook to the body with a sling or rope hooked so that it does not jolt while the vehicle is moving. If the hook is reeled excessively without being fixated, the wire rope is more likely to kink; fixate the hook without reeling it too much.

If a Uni hook is installed
Move the control lever to stow the hook.

Stow and fixate the hook

Stow the outriggers

Move the control lever to stow the vertical outriggers. (The outriggers on both sides can be retracted simultaneously.)
Hold the extension lever to unlock the horizontal outriggers and then push them fully into the crane while holding the extension lever.
After they are stowed, lock the outriggers with lock levers so that they will not come out as the vehicle travels.

Turn off the PTO

Once you have confirmed that the crane and outriggers are stowed, turn off the PTO while depressing the clutch pedal.
If the truck travels with the PTO turned on, jolts and vibrations that occur during traveling may break the pump and the truck’s transmission.