Electrical Circuit; Load Control; Tilt Control; High Travel Speed - Haulotte H12 SD Operating And Maintenance Instructions Manual

3.2.

ELECTRICAL CIRCUIT.

The electrical power used for the controls and engine ignition is supplied by a 12 V battery.
The electrical power needed to operate the bi-energy motor pumps is supplied by a 24 V drive battery pack.
An on-board charger, plugged in to a 16 A domestic socket, can recharge these batteries overnight.
Main safety devices - details
Engine automatic cut-out:
• oil pressure too low.
• air filter clogged.
• alternator or fan belt broken.

3.2.1. Load control.

If the platform load reaches 90% of the maximum allowable load, the buzzer sounds.
When the maximum load is reached, the control circuit cuts out, disabling all movements. The load must
reduced to permit reset.

3.2.2. Tilt control.

The tilt sensor emits a sound when the maximum allowable tilt angle is reached.
Maximum tilt angle
H12SD
H15SD
H18SD
If this state continues, after a time delay of 1 to 2 s, the scissors lower function is disabled; the travel function
is also disabled as long as the platform stays up.
To operate the travel function, the scissors must be fully folded.
NOTE: when the platform is stowed, the tilt sensor emits a sound while the slope continues to be over
maximum allowable tilt angle, telling the operator that the platform cannot be lifted.

3.2.3. High travel speed.

High travel speed is allowed only when the platform is fully stowed.
When the platform is up, only low speed travel is possible.
3.2.3.1. Hour-meter.
This shows the engine running time.
In the bi-energy version, a meter shows the motor pumps' running time.
3.2.3.2. Charging the drive batteries.
In the bi-energy version, if the drive batteries reach 80% discharge, the only possible movements are
machine stowage and travel, in order to reach a recharging point.
5°
5°
3°
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