12. OPERATION 12.11 PRECAUTIONS FOR OPERATION PRECAUTIONS WHEN TRAVELLING When travelling over obstacles such as boulders or tree stumps, the machine (in particular, the undercarriage) is subjected to a large shock, so reduce the travel speed and travel over the obstacle at the center of the tracks. As far as possible, remove such obstacles or avoid travelling over them. PRECAUTIONS AT Hi-SPEED TRAVEL On uneven roadbeds such as rock beds or uneven roads with large locks, travel at Mi or Lo speed. When Hi-speed travelling, set the idler in the forward direction.
PERMISSIBLE WATER DEPTH NOTICE When driving the machine out of water, if the angle of the machine exceeds 15 o , the rear of upper structure will go under wa- ter, and water will be thrown up by the radiator fan. This may cause the fan to break. Be extremely careful when driving the machine out of water. Do not immerse the machine in water by more than the permissible depth (under center of carrier roller a ). In addition, for parts that have been immersed in water for a long time, pump in grease until the old grease comes out from the bearings. (Around the bucket pins) PC450-ENG 2-69