Operator`s manual

RD 27 Operation

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4.12 Transmission

See Graphic: wc_gr002308

Both roller drums are driven. An infinitely variable displacement pump

and hydrostatic transmission drive the hydraulic motors fitted to each

drum. Forward and reverse travel are selected using a forward-reverse

lever located to the side of the driver’s seat. In order to comply with

safety standards, the machine has a device which only enables

starting of the diesel engine when the forward-reverse lever is in the

neutral position.

Forward-reverse lever

Shift the lever into “Forward” (f) or “Reverse” (r) according to the

direction of travel desired. The further forward or reverse the lever is

positioned, the faster the roller will travel.

Road speed varies from “ZERO” to a permitted maximum of 10 kph

(6.2 mph). Road speed is the same in both “Forward” and “Reverse”.

If you wish to change direction of travel from FORWARD to REVERSE

or vice versa, move the lever to the "N neutral” position (n), allow the

vehicle to come to a complete stop, then move the lever in the direction

desired. The end of this lever is also fitted with a button for activating

the exciter.

Note: The machine is equipped with an operator present system. The

system prevents the machine from moving forward or reverse unless

the operator is seated. The operator should remain seated at all times.

When negotiating gentle slopes, keep the engine at high rpm's and the

forward-reverse lever at the minimum position.

CAUTION: This vehicle has a hydrostatic transmission which means

that the forward-reverse lever can also be used as an engine brake.

Shifting the lever to the neutral position stops the vehicle.

CAUTION: Never drive the machine at low idle speed. Driving the

machine at low idle speed can damage the drive pump.

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