3.3. Operation Operation 3.3.9. Working with the wheel loader Tyre-appropriate operation Removing heaps of loose soil or rock debris may cause prema ture wear and tear of the tyres due to cracks and small fissures. As a result, the service life of the tyres is reduced. Proceed as fol lows to avoid unnecessary wear and tear of the tyres: Try to work on level ground and remove any rocks and large stones which are sticking out of the surface. Always drive in straight direction into the heap or slope. This ensures that you have always the largest intrusive force while reducing tyre wear and tear at the same time.
Drive slowly when removing agglomerated material and when loading blasted solid rock (speed range 1). For removing operations, lift the bucket as soon as you drive into the heap or slope. This procedure permits to increase the load of the front wheels, prevents slipway of the front wheels and reduces wear and tear of the tyres. Lower the bucket slowly onto the ground. If the bucket touches the ground too fast, the front wheels may be lifted from the ground, thus leading to premature wear and tear of the rear tyres. To prevent the front wheels from skidding, it is recommended to set the ground pressure of the front wheels as high as pos sible.
Therefore, immediately lift the bucket a little after run ning into the heap or slope. Switching on the 100 % differential lock (if equipped) On soft, slippery ground the forward thrust can be improved by engaging the differential lock. It takes effect on all four wheels. To engage the differential lock, press and hold the button (1) on the multifunction lever. NOTE The differential lock may only be switched on when the machine is in standstill. 1 If the differential lock is on, the control lamp (2) of the instrument panel is lit. 2 If only one wheel on an axle turns when you start to drive with the differential lock engaged, stop and correct the steering until the lock engages properly.
To disengage the differential lock, release the button (1) on the multifunction lever. The differential lock can be disengaged while you are driving When you drive in curves on hard ground, the differential lock has to be switched off. 3-58 WA90-5 – VEAM270100 DANGER DANGER