OPERATING INSTRUCTIONS
BRINGING THE MACHINE UP TO OPERATING TEMPERATURE Template Name: OM_1_col Template Date: 1994_04_29
IMPORTANT: Normal operating temperature of the hydraulic fluid is between 50°C and 80°C, in the middle of the temperature indicator. If the machine is used with the hydraulic fluid at a temperature below 20°C, then damage can be caused. After starting the engine and before using the machine, allow the hydraulic fluid to reach a temperature of 20°C, as indicated by the appearance of the first bar segment on the hydraulic fluid temperature indicator. See item 8 under “Systems display and control panel” in the “Controls/Instruments/Accessories” Section.
Engine automatic warmup
Hydraulic oil warm-up
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Turn the engine throttle button to halfopen position. Operate the bucket control slowly until the bucket is completely closed. Operate the dipper retracting control slowly until the dipper is completely retracted and hold the control in this position for 30 seconds. During this time the temperature of the hydraulic fluid will increase.
Once the engine has started, the warming-up process begins automatically. At first, engine speed is held at a pre-determined, low level. As the temperature increases, engine speed increases in proportion. It is possible to interrupt the warming-up process at any time, simply by manually changing engine speed or by operating one of the control levers. Warming-up takes approximately 5 to 10 minutes.
After 30 seconds, extend the dipper completely and hold the control in this position a further 30 seconds.
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Engine manual warm-up
Continue the extending and retracting procedure until the temperature rises. See item 8 under “Systems display and control panel” in the “Controls/Instruments/Accessories” Section.
With the engine throttle button a quarter open, start the engine and allow it to run approximately for 5 to 10 minutes. When the coolant temperature increases, carry out the hydraulic fluid warm-up procedure.
Operate the travel and attachment controls three or four times to activate hydraulic fluid circulation.
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