CAPITULO IV: APLICACIÓN PRACTICA
4.1.3 Aplicación y análisis:
Before performing the various maintenance tasks, move the machine to maintenance position unless otherwise explicitly specified in the description.
The various maintenance tasks include:
– Lubricating the lift arms
– Checking the oil level or changing the oil in the engine, gears, axles, hydraulic tank, etc.
– Replacing filters as well as adjustment and repair work on the hydrau-lic system
Safety precautions for maintenance
Always observe the accident prevention regulations during mainte-nance work.
Make sure that visual contact between the operator in the cab and mainte-nance personnel is always maintained.
Danger
There is a risk of accidents for maintenance personnel.
The presence of unauthorised persons on the machine can place the maintenance personnel in extreme danger.
!
Never enter a dangerous area of the machine without making your pre-sence known.• Make sure you can be clearly seen before entering one of the machine's danger areas.
• Secure the machine against rolling away with wheel wedges.
Maintenance positions
The maintenance position depends on the maintenance task to be performed.
The two basic maintenance positions 1 and 2 are described below.
They enable you to access the individual maintenance points.
Visual contact
Wheel wedges
LBH/Version 01/10.2006/en/hd/22/02/2007
To move the machine into maintenance position 1 proceed as follows.
Maintenance position 1
• Park the machine on level ground.
• Lower the lift arms.
• Set the bucket down flat on the ground.
• Engage the parking brake.
• Turn off the diesel engine.
• Take out the ignition key.
To move the machine into maintenance position 2 proceed as follows.
Maintenance position 2
• Park the machine on level ground.
• Engage the articulation lock.
• Lower the lift arms.
• Tilt the bucket out and set it down on the ground on its teeth or cutting edge.
• Engage the parking brake.
• Turn off the diesel engine.
• Take out the ignition key.
Opening the service hatches, doors and hoods
Open the door if you need to access the following units or components:
– Hydraulic pumps – Hydraulic tank
– Hydraulic tank shut-off valve – Air filter
– Battery main switch
Engine compartment hatch Maintenance position 1
Maintenance position 2
Opening the engine compartment hatch
LBH/Version 01/10.2006/en/hd/22/02/2007
Warning
There is a risk of injury if the engine compartment door falls shut.
!
Check that the gas-filled springs securely hold the hood fully open.• Open the lock with the ignition key.
• Completely open the hatch 1 using the handle 2.
Two gas-filled springs 3 hold the opened hatch in this position.
When the hood is open, you can access the following units:
– Diesel engine – Pump distributor gear – Cooling system – Hydraulic tank
Engine compartment hatch and hood cable
• Open the engine compartment hatch.
Warning
Engine parts which are in motion can cause injury.
Rotating or moving engine parts, such as the fan blades or V-belts, can cause injury.
!
Only open the engine compartment hood when the engine is shut down.• Pull the cable 1 for unlocking the engine compartment hood until the lock is open.
Engine compartment hood 1 Engine compartment hood
2 Gas-filled springs 4 Cable lock
5 Hydraulic tank cover Opening the engine
compartment hatch
LBH/Version 01/10.2006/en/hd/22/02/2007
The lock 4 unlocks the engine compartment hood 1.
The hood is automatically opened and held in position by two gas-filled springs 2.
• Turn the securing pipe 2 in the direction of the arrow (position shown).
The gas-filled spring 1 is now blocked.
The engine compartment hood cannot be opened.
Warning
There is a risk of injuries if the hood falls shut.
!
Check that the gas-filled springs securely hold the hood fully open.• Check the function.
• Open the hydraulic tank over 5 as required.
Unlock the cover and open it.
When the hood is open, you can access the cooling system.
Make sure that the cab door is closed.
• When opening or closing the hood, climb onto the machine via the cab access, making sure that you have secure footing.
Cooling system hood 1 Left cooling system hood
2 Right cooling system hood 3 Gas-filled springs 4 Handle
• Completely open the hood 1 and/or 2 by pulling up the handle.
The hood is held in this position by the gas-filled spring 3.
Warning
There is a risk of injuries if the hood falls shut.
!
Check that gas-filled spring holds it completely open.• Check the function.
Opening the engine compartment hatch
LBH/Version 01/10.2006/en/hd/22/02/2007
Turning off the battery main switch
The battery main switch is located at the rear left of the engine compartment.
For certain maintenance jobs, the battery main switch must first be turned off.
Find out from the descriptions of the relevant maintenance tasks whether the battery main switch must be turned on or off. See the section on mainte-nance tasks.
Switch on the battery main switch after completing these maintenance tasks.
Caution
There is a risk of damaging the electrical system.
! Do not turn off the battery main switch while the engine is running.
Battery main switch
1 Battery main switch 2 Main switch key Danger
There is a risk of accidents for maintenance personnel.
If unauthorised people are on the machine it can put the maintenance personnel in extreme danger.
!
For safety reasons, it is essential that the battery main switch is turned off.!
Pull out the key for safety reasons.• Turn off the battery main switch 1 by turning the key 2 to the 0 position.