Unit : kgf / cm 2 7-15 14) FOR TRAVEL SPEED SELECTING PRESSURE (1) Preparation ① Stop the engine. ② Remove the top cover of the hydraulic tank oil supply port with a wrench. ③ Push the pressure release button to bleed air. ④ To measure the speed selecting pressure: Install a connector and pressure gauge assembly to turning joint P port as shown. ⑤ Start the engine and check for on leakage from the adapter. ⑥ Keep the hydraulic oil temperature at 50±5˚C. (2) Measurement ①Select the following switch positions. Travel mode switch : 1 speed 2 speed ·Power mode switch : P mode ②Measure the travel speed selecting pressure in the Hi or Lo mode.
③Lower the bucket to the ground to raise the track off the ground. Operate the travel lever at full stroke and measure the fast speed pressure. ④Repeat steps ② and ③ three times and calculate the average values. (3) Evaluation The average measured pressure should b e within the following specifications. Model Travel speed mode Standard Maximum allowabl e Remarks R505LVS 1 Speed 0 - 2 Speed 40±2 -