MAINTENANCE BASICS Check that the machine is unloaded before you check the tire pressure. Prior to start of work, measure the tire pressure of the cold tires. If the tire pressure is too low, the tire will be overloaded. If the tire pressure is too high, this will lead to formation of notches in the tire resulting in bursting of the tire when it is subjected to shock load. To avoid such damage, set the pressure of the tires according to the values given in the following table. If you are not sure, ask your tire deal- er. Do not deflate the tire when the tire pressure increases due to a rise in temperature. For this reason, check and set the tire pressure before you start work, i.e.
when the tires are still cold. If the tires are too soft, increase the tire pressure accordingly. The following degree of resilience (tire loaded/unloaded) of the front tires can be used as the guideline for the visual check. Transport of normal loads (horizontal position of boom): approx. 15 - 25%. Digging (rear wheels lifted off the ground): approx. 25-30%.
135 TIRES RECOMMENDED TIRE PRESSURE on public roads during operation Manufacturer Size Type Front axle Rear axle Front axle Rear axle bar psi bar psi bar psi bar psi DUNLOP 12.5 - 18 MPT E91-2 2.0 29 1.75 26 1.5 22 1.5 22 DUNLOP 12.5 - 20 MPT TG 32 2.0 29 1.5 22 1.5 22 1.5 22 DUNLOP 13.5/55 R18 SP PG7 2.75 40 2.5 37 1.5 22 2.25 33 DUNLOP 335/80 R18 SP T9 2.5 37 2.25 33 1.5 22 2.25 33 DUNLOP 335/80 R20 SP T9 2.25 33 2.0 29 1.5 22 2.0 29 DUNLOP 365/70 R18 SP T9 2.25 33 2.0 29 1.5 22 2.0 29 MICHELIN 335/80 R18 XM 27 2.5 37 1.5 22 1.75 26 1.75 26 BARUM 12.5 - 18 NB 38 2.5 37 1.75 26 1.75 26 1.75 26