¤ WARNING: For reasons of safety, always follow these safety precautions. 8. PRECAUTIONS FOR MAINTENANCE 1-36 PRECAUTIONS WITH HIGH-PRESSURE GREASE WHEN ADJUSTING TRACK SHOE TENSION ‡ The track shoe adjustment device is filled with high- pressure grease. If maintenance is not carried out in the correct order, valve 1 may fly off and cause serious injury. ‡ When loosening grease discharge valve 1, never loosen it more than one turn. ‡ Do not put your face, hands, feet, or body in the direction of mounting of the grease discharge valve. Adjusting track shoe tension © See “24.2 WHEN REQUIRED”.
A0055200 WHEN ADJUSTING TRACK SHOE TENSION HANDLING HIGH-PRESSURE HOSES ‡ If oil or fuel leaks from high-pressure hoses, it will cause serious injury through fire or defective actuation. If any damage to the hoses or loose bolts are found, stop operations immediately and contact your Komatsu distributor. ‡ Experience and skill is required when replacing high pressure hoses. The tightening torque is determined according to the type and size of the hose, so please contact your Komatsu distributor. ‡ If any of the following conditions are found, replace the part. • Damage or leakage from hose mouthpiece. • Wear, damage, cutting of covering, or exposure of strengthening wire layer.
• Cover portion is swollen in places. • There is twisting or crushing at movable parts of hose. • Foreign material is embedded in the covering. • Hose mouthpiece is deformed.