Operation

☞ Turn the ignition key to position “3” and hold it in this position until the engine starts.

☞ Release the ignition key.

Starting at low temperatures

☞ Turn the ignition key to position “2” hold it in this position for about 15 seconds.

☞ Press accelerator pedal 23/8 all the way down.

☞ Turn the ignition key to position “3” and hold it in this position until the engine starts.

☞ Release the ignition key.

When the engine runs smoothly (increased engine speed):

☞ Release accelerator pedal 23/8.

IMPORTANT!

In general, a battery delivers less energy in cold conditions. Therefore, make sure the battery is always well charged.

After the engine has started

☞ Check that the following indicators have gone out:

• 29/43

• 29/46

☞ Let the engine warm up. In cold (winter-type) weather

☞ Increase the engine speeds slowly.

☞ Do NOT run the engine at full load until it has reached its operating temperature.

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 ml48 must not touch the jump-starting machine because when both machines are connected by jump leads, 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.

12 V 12 V 34001b710_05.eps

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).

Operation

Before driving the machine

Special instructions for public roads

• Follow these instructions –see Use: attachment on page9.

☞ Carry out a functional check of:

• Brakes.

• Steering.

• Lights.

☞ Empty the bucket

–see Hand lever of the machine on page77.

☞ Tilt back the bucket 31/B

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

IMPORTANT!

Ground clearance for transport31/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 unintentional operation. To do this:

• Lock stop lever 13 (see arrow).

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

☞ High speed (option): Press rocker switch 25/65 for the load stabilizer.

➥ –see Load stabilizer (option) on page52.

Inspection and adjustment of important functional units

Steering

☞ Functional check: Move the steering wheel to the left and right.

The power steering system is only operational when the engine is running. But 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

NOTE:

The machine has self-synchronizing axles. If you notice that the wheels on both axles do NOT run in the same track –see Synchronizing the steering system (with 25 mph [40 km/h] high speed option) on page54.

Service brake/inching pedal

WARNING!

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 23/31 causes the brake lights to come on.

Dirt accumulation in the area of the brake pedal can result in brake malfunctions –

Accident risk.

☞ Always keep brake/inching pedal 23/31 clean.

☞ Before driving the machine, press brake/inching pedal 23/31 down and check:

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

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

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

WARNING!

Pressing brake/inching pedal 23/31 down slightly causes the inching valve to respond; the inching valve does NOT effectively brake the machine –

Accident risk.

☞ Press brake/inching pedal 223/31 down to its maximum power.