Operation

Jump-starting the engine

Safety instructions

DANGER!

Never jump-start the engine if the battery of the machine is frozen, because there is a risk of explosion. The Model 680 must not touch the jump-starting machine because when both machines are connected by jump leads, because there is a risk of sparking.

• The external power source must deliver 12-V; higher supply voltages will damage the electrical systems of both machines.

• Only use authorized jumper cables that are in good condition.

IMPORTANT!

The jumper cable connected to the positive (+) terminal of the starting battery must never touch electrically conductive machine parts, because there is a risk of short circuit.

• Route the jumper cables so that they cannot catch on rotating components in the engine.

Procedure

☞ Start the engine of the jump-starting machine.

☞ Connect one end of the red jump lead (+) to the + terminal of the dead battery, then connect the other end to the + terminal of the starting battery.

☞ Connect one end of the black jump lead (–) to the – terminal of the starting battery.

☞ Clip the other end of the black jump lead (–) onto the engine block.

DANGER!

DO NOT connect the other end of the jump lead to the negative terminal of the dead battery, because gas emerging from the battery may ignite if sparks are formed.

☞ Start the engine of the machine with the dead battery.

After the engine has started

☞ While the engine is running, disconnect both jump leads in exactly the reverse order (first remove the – terminal, then the + terminal) – this prevents sparking near the battery.

Before driving the machine

Special instructions for public roads • Follow these instructions –see Use: attachment on page12.

☞ Carry out a functional check of:

• Brakes.

• Steering.

• Lights.

☞ Empty the bucket.

☞ Tilt back the bucket B

–see Loader unit control valve overview on page81.

☞ Raise the loader unit so that both red marks D on the lift frame and the bulkhead are aligned.

IMPORTANT!

Ground clearance for transport(fig. 26/C) is about 8“ (200mm) (with the standard bucket, standard tires, and both marks D aligned).

Securing the control lever (joystick)

☞ Secure control lever 10 against inadvertent operation. To do this:

• Lock lock lever 16 (see arrow).

➥The lock lever is located to the right of the control lever base console, next to the preheating/start switch.

☞ High speed (option): Press rocker switch 39/70 for the load stabilizer.

➥ –see Load stabilizer (option) on page60.

Inspection and adjustment of important functional units

Steering

☞ Functional check: Move the steering wheel to the left and right. The steering system is only operational when the engine is running. If the diesel engine or hydraulic steering fails (e.g., failure of the pump drive), the machine can still be steered.

WARNING!

If the power steering fails, turning the steering wheel requires greater effort. Take this into account especially when towing the machine.

☞ Adapt towing speed to the steering.

☞ Use a tow bar.

Wheel synchronization position

☞ –see Synchronizing the steering system on page62.

Steering column height and angle setting

DANGER!

DO NOT adjust the steering column when driving or working –Accident risk.

☞ Stop the machine.

☞ Turn off the engine.

☞ Apply the parking brake.

You can set the steering column height and angle.

Function

Operation

☞ Pull lever 7 upward A.

Height setting

☞ Pull or push the steering column into the correct position.

☞ Release lever 7.

➥ Steering column is locked.

☞ Press lever 7 rearward B.

☞ Move the steering column into the correct position.

Angle setting

Service brake

CAUTION!

☞ Release lever 7.

➥ Steering column is locked.

The rear brake lights DO NOT come on when you:

•Brake by applying the parking brake.

•Brake hydrostatically with the drive.

☞ Only pressing brake/inching pedal 37/31 causes the brake lights to come on.

Dirt on or around the brake pedal may prevent it from functioning correctly: Accident risk.

☞ Always keep brake/inching pedal 37/31 clean.

☞ Before driving the machine, press brake/inching pedal 37/32 down and check:

• For resistance after pressing the pedal down to about 50% of its maximum power.

• If the brake lights come on after you press the brake pedal down.

☞ For resistance after pressing the pedal down at a low speed.

DANGER!

Pressing brake/inching pedal 37/31 down slightly causes the inching valve to respond; the inching valve does NOT effectively brake the machine –

Accident risk.

☞ Press brake/inching pedal 37/31 down to its maximum power.

Driving

IMPORTANT!

You can only move the machine after releasing parking brake 37/13.

After starting the engine:

☞ Release parking brake 37/13.

☞ Select the driving direction by using toggle switch 39/76 on the control lever.

➥ Indicator 39 /52 comes on.

☞ Gradually press down accelerator pedal 37/8.

➥ Machine is now moving.