Operation

Indicators and warni ng lights: overview

Unfold page 37 for a better overview.

48 Indicator (red) – engine oil pressure

Comes on if the engine oil pressure is too low, if the engine oil pressure is too low:

☞ Stop the machine.

☞ Turn off the engine immediately and check the oil level (➠ page 104). Comes on after the ignition is turned on and turns off after the engine runs.

43 Temperature indicator – engine and cooling oil

Indicates the engine oil temperature.

NOTE:

The engine oil temperature must range from 176 – 248 °F (80 – 120 °C). The maximum permissible engine oil temperature is 266 °F (130 °C) (red section).

46 Indicator (red) – alternator charge function

Comes on after the ignition is turned and goes out after the engine runs. Comes on while the engine is running if:

• The V-belt or charging circuit for the alternator is faulty.

• The battery is not charged anymore (➠ page 110).

45 Indicator (yellow) – air filter

Indicates air filter contamination. If the air filter is contaminated: Have the air filter replaced by an authorized dealer.

66 Indicator (green) – right/left turn indicator on rear attachment

Flashes repeatedly:

• When turn indicator 34 is used.

• If there is an electrical connection to a front or rear attachment.

52 Indicator (blue) – high beam

Comes on if high beam is turned on or during headlight flashing.

61 Indicator (yellow) – cold starter

Comes on when the key in preheating start switch 14 is in position 2 (a glow plug preheats the air in the combustion chamber of the engine when the key is in position 2).

47 Indicator (red) – parking brake

Comes on when parking brake lever 13 is applied.

49 Hydraulic oil temperature indicator

Comes on if the hydraulic oil temperature exceeds 203°F (95°C).

IMPORTANT!

Risk of hydraulic damage as soon as temperature indicator 49 comes on:

☞ Relieve work and driving hydraulics. To do this:

•Stop the machine.

•Move control lever 10 to neutral.

•Select neutral by using tip switch 81.

•Run the engine at increased speed until indicator 49 turns off.

44 Indicator (red) – hydraulic oil filter

Indicates too high of pressure in the hydraulic reflux line to the tank. In this case:

☞ Have the hydraulic oil filter checked and, if necessary, replaced by an authorized dealer.

50 Indicator (green) – right/left turn indicator

Flashes repeatedly while turn indicator 37/34 is used.

41 Indicator (red) – steering synchronization

Indicates that the wheels on both axles are aligned ➥ –see Synchronizing the steering system on page62.

51 Indicator (green) – four-wheel steering

Indicates that four wheel steering is turned on ➥ –see Changing steering mode (withouthigh-speed) on page62.

69 Indicator (green) – front-axle steering

Indicates that front axle steering is turned on ➥ –see Changing steering mode (withouthigh-speed) on page62.

Indicators 52 and 68 (green) – driving direction

Indicates forward/reverse driving direction

➥ –see Selecting the drive range on page58.

40 Indicator (green) – differential lock

Indicates that the differential lock is turned on ➥ –see Turning on the differential lock on page61.

Notes:

Getting Started

Safety instructions

Important information

• Never use the controls or cables as handles.

• Never climb onto or jump off a moving machine.

• Refer to the load diagrams for the loader unit pallet forks –see on page97.

• The machine may only be used in good operating condition in accordance with its designated use and the instructions in the Operator’s Manual, and only by persons who are properly trained and fully aware of the risks involved in operating the machine –see Checklists on page45.

Running-in period

The performance and service life of the machine are heavily dependent on using the machine carefully during its first 100 operating hours.

• Do not overload the machine.

• Do not run the engine at a high speed for extended periods of time.

• Increase the load gradually while varying the engine speed.

• Follow the maintenance schedule –see Maintenance schedule Model 680 (overview) on page128.