Linkbelt 290LX EXCAVATOR OPERATOR'S MANUAL - PDF DOWNLOAD

Page 102

OPERATING INSTRUCTIONS

BRINGING THE MACHINE UP TO OPERATING TEMPERATURE IMPORTANT: Normal operating temperature of the hydraulic fluid is between 50°C and 80°C (122-176F), in the middle of the temperature indicator. If the machine is used with the hydraulic fluid at a temperature below 20°C (68F), 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(68F), 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.

Idle - Start

trol slowly until the arm is completely retracted and hold the control in this position for 30 seconds. During this time the temperature of the hydraulic fluid will increase.

At start-up the engine speed defaults to low idle regardless of throttle position. This prevents over speeding a cold engine and extends its service life. TRIM THIS EDGE

After 30 seconds, extend the arm completely and hold the control in this position a further 30 seconds.

Auto engine warm-up 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.

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. Operate the travel and attachment controls three or four times to activate hydraulic fluid circulation.

Low Idle-Up Engine manual warm-up

When battery voltage or anti-freeze temperature drops the engine will automatically raise rpm’s from 900 to 1100 to help recharge the battery or keep engine fluids warm.

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.

Hydraulic oil warm-up Turn the engine throttle button to halfopen position. Operate the bucket control slowly until the bucket is completely closed. Operate the arm retracting con98

TRIM THIS EDGE LEFT PAGE Bur 6-30470


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AIR CONDITIONING

2min
pages 187-189

BATTERIES

2min
pages 197-198

ENGINE TROUBLESHOOTING

1min
pages 190-191

CONNECTING BOOSTER BATTERIES

1min
page 199

REPLACING A BUCKET

1min
pages 183-184

SHIMMING THE BUCKET

1min
page 185

RADIATOR AND OIL COOLER

1min
page 178

TRAVEL REDUCTION GEARS

1min
pages 170-172

SWING REDUCTION GEAR

1min
pages 168-169

AIR FILTER

2min
pages 164-167

RELEASING PRESSURE IN THE HYDRAULIC SYSTEM

1min
pages 151-152

HYDRAULIC SYSTEM

9min
pages 153-163

COOLING SYSTEM

2min
pages 146-148

FUEL SYSTEM

1min
pages 149-150

ENGINE

2min
pages 143-145

ENGINE OIL

1min
page 135

TRANSPORTING THE MACHINE

2min
pages 123-128

AUXILIARY HYDRAULIC (optional

2min
pages 118-122

PARKING THE MACHINE

1min
page 115

TOWING THE MACHINE

1min
pages 116-117

FILLING THE BUCKET

1min
page 114

MACHINE TRAVEL

2min
pages 108-110

MACHINE OPERATION

2min
pages 106-107

STOPPING THE ENGINE

1min
page 105

OPERATING THE MACHINE IN COLD WEATHER

1min
page 104

STARTING THE ENGINE

1min
pages 100-101

ENGINE OPERATION

1min
page 103

BRINGING THE MACHINE UP TO OPERATING TEMPERATURE

1min
page 102

BREAK-IN PERIOD

1min
page 98

MACHINE OPERATION

2min
pages 96-97

HOSE BURST CHECK VALVES (OPTIONAL

1min
page 91

LIFTING EYE

1min
page 89

TOWING EYES

1min
page 90

WINDSHIELD WASHER RESERVOIR

1min
page 88

TOOL SUPPLY VALVES (OPTIONAL

1min
pages 92-94

ENGINE HOOD

1min
pages 86-87

SIDE DOORS

1min
page 85

FUEL TANK

1min
page 83

ANTI-THEFT SYSTEM

3min
pages 60-62

SYSTEMS DISPLAY AND CONTROL PANEL

9min
pages 52-59

LOWER FRONT WINDOW

1min
page 80

DECALS

3min
pages 27-38

STEPS AND ACCESS HANDLES

2min
pages 44-45

MAINTENANCE AND ADJUSTMENTS

3min
pages 25-26

BEFORE USING THE HYDRAULIC BREAKER (optional

2min
pages 23-24

MAINTENANCE

5min
pages 19-22

MACHINE OPERATION

2min
page 15

PERSONAL SAFETY

1min
page 13

FIRE EXTINGUISHER

1min
page 17

SAFETY RULES

1min
page 11

BEFORE OPERATION

1min
page 14

UTILITY SAFETY

1min
page 12

BURN PREVENTION

2min
page 16

FIRE OR EXPLOSION PREVENTION

1min
page 18
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