Wacker Neuson 28Z3, Operator'S Manual

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3-10
OM 28Z3 US – Edition 2.0 * * 28Z3b320.fm
Operation
Indicator lights and warning lights: overview
30 Hydraulic oil filter indicator light (red)
Indicates inadmissibly high pressure in the hydraulic return line to the reservoir. In this
case:
☞
Have the hydraulic oil return filter checked and, if necessary, replaced by an authorized
Wacker Neuson service center.
☞
The indicator light can come on briefly if the hydraulic oil is cold, but goes out again
once operating temperature is reached.
31 Indicator light (red) – alternator charge function
NOTICE
Possible engine damage. The coolant pump no longer runs if the V-belt is
faulty. Engine may overheat or break down.
If the indicator light comes on with the engine running:
☞
Stop the engine immediately.
☞
Have the cause repaired by an authorized Wacker Neuson service center.
The V-belt or the charging circuit of the alternator is malfunctioning if the indicator light
comes on with the engine running. The battery is no longer charged.
32 Engine oil pressure indicator light (red)
Comes on if the engine oil pressure is too low. In this case:
☞
Stop the machine
☞
Stop the engine immediately and check the oil level
The indicator light comes on when the ignition is turned on and goes out as soon as the
engine runs.
33 Coolant temperature indicator light (red)
Warning!
Burn hazard. The engine coolant is under pressure at high temperature. Fail-
ure to observe specific instructions to check the coolant level in the radiator of
the cooling system can cause serious injury from burns or pressure spray of
the coolant.
☞
Do not attempt to remove the radiator filler cap or drain the radiator coolant
until the coolant temperature is less than 43°C (110°F).
☞
Stop the engine and wait at least 10 minutes or until the cap is comfortable
to the touch before attempting removal.
☞
Wear protective gloves and eye protection.
☞
After determining the temperature is low enough to avoid burns, slowly turn
the cap counterclockwise to the first notch stopping cap rotation. Wait to
confirm that any pressure has been relieved. Depress the cap and continue
to rotate the cap in a counterclockwise motion until the cap is free and can
be removed.