Zoomlion ZRT850, Operator'S Manual

Page: 50 / 179

Op
erat
ing
co
nd
itio
ns and
po
int
s f
or at
te
nt
ion
Operator’s Manual for Rough Terrain Crane
CAUTION
Do not operate the engine continuously at high speeds without a load.
CAUTION
Do not bypass gears when you move to a lower gear.
Slow the crane down before you change to a lower gear.
E. Do the items that follow before you go down a long hill slope:

Make sure that the brake system can stop the crane before you go onto the slope.

Put the transmission in the "F1” position before you go down the slope.
F. Know the below data while you steer the crane:

When you go into a corner, put the transmission in a lower gear and apply a small
quantity of pressure on the brakes.

The steering wheel has a mechanical limit. Do not continue to turn the wheel when at
the limit. Do not keep the wheel at the limit for long periods of time.
G. If the engine stops because the fuel tank is empty, air can go into the fuel system. When
this occurs, you remove the air from the fuel lines.
H. When you move the crane between locations, only one person is approved to be in the
cab.
5.2.4 CRANE MOVEMENT IN OFF-ROAD CONDITIONS
When the rear axle is in the mud (no traction) or on rough terrain, follow these steps:

Put the transmission in the "F1” position. This applies more torque to the drive system.

Put the vehicle in the 4-wheel drive mode.

Tow the vehicle or put rigid materials, e.g. pieces of wood or iron plates, below the wheels.
5.2.5 PARK THE VEHICLE
A. When you park the vehicle, follow the instructions below:

In bad weather condition (rain, snow, ice) or on a slope, make sure that there is a lot
of clearance in front and to the aft of the vehicle.

Put the park switch to the "P" position and put the chocks against the wheels.

Put the transmission in the neutral position.
B. Before you stop the engine, do the items that follow:

Push the accelerator pedal 2 or 3 times to increase the engine RPM. This makes the
oil flow into each part of the engine.

Let the engine idle while you monitor the coolant temperature.

Stop the engine, when the coolant temperature is in the correct range.

Put the battery master switch to the OFF position.
5-8