PRECAUTIONS FOR MAINTENANCE 2.8.18 PRECAUTIONS TO BE TAKEN WHEN USING HIGH-PRESSURE GREASE TO ADJUST THE TRACK TENSION The grease contained in the track tension adjustment device is pressurized. If the adjustment isn't carried out according to the instructions given in the maintenance section, the grease valve (1) may be ejected due to the high pressure and this may be dangerous for the operator. When reducing the track tension, do not loosen the valve (1) more than one turn. Keep face, hands and other body parts away from the valve (1).
2.8.19 DO NOT REMOVE THE SHOCK ABSORBING SPRING FROM THE SHOCK ABSORBER UNIT The shock absorber unit is provided with a shock absorbing spring with high preload, in order to absorb the im- pacts of the front idler roller. Do not attempt to remove the spring, since this may lead to serious accidents and even death. For any operation on the shock absorber unit, contact your Komatsu Utility Dealer. 2.8.20 HYDRAULIC ACCUMULATOR The hydraulic accumulator contains pressurized nitrogen. When carrying out any operation on the accumulator, do not pro- ceed carelessly, since this may cause an explosion and conse- quently serious injuries and even death.
For this reason, keep to the following instructions: do not remove the accumulator; do not bring the accumulator near sparks or naked flames; do not make holes in the accumulator, do not weld or use oxyhydrogen flames; do not hit or press the accumulator; when disposing of the accumulator, take care to release the gas it contains. Have this operation carried out only by a Komatsu Utility Dealer. 50