Fan Reverse Rotation Switch; Manual Operation - Hitachi ZW140-6 Operator's Manual

Fan Reverse Rotation Switch

Fan reverse rotation switch (1) reverses the hydraulic driven
fan. In case the radiator is clogged, rotate the hydraulic driven
fan in reverse direction to blow out the clogged dust. Carry
out the fan reverse rotation regularly to prevent the cooling
system from clogging.

Manual Operation

IMPORTANT:
 Fan rotating direction can be changed during the
engine is running. Each time the ON side of fan
reverse rotation switch (1) is pressed, the fan's
rotating direction switches alternatively. While
switching the fan rotating direction, fan reverse
rotation indicator (2) flashes. When the fan rotates
in reverse direction, indicator (2) stays ON. When
fan reverse rotation switch (1) is pressed while fan
reverse rotation indicator (2) turns ON, indicator
(2) starts flashing. When the fan rotates in normal
direction, fan reverse rotation indicator (2) goes OFF.
Do not press fan reverse rotation switch (1) during
indicator (2) is flashing.
 Always operate the switch while applying the
parking brake. When the parking brake is released,
the fan reverse condition is automatically canceled
after 1 minute. In case abnormal situation occurs
such as engine coolant overheating, reverse rotation
may forcibly be released, or fan reverse rotation
switch may be disabled.
1. Close the side cover and the rear grille before operating
the switch.
2. Start the engine. Be sure to confirm that the parking
brake is applied. Press ON side of fan reverse rotation
switch (1) once. Fan reverse rotation indicator (2) starts
flashing. Approximately 1 minute later, the fan rotates in
reverse direction, and fan reverse rotation indicator (2)
stays ON.
3. After operation, press fan reverse rotation switch (1)
again to return the fan rotation to the normal direction.
OPERATOR'S STATION
1-80
ON
OFF (Neutral)
AUTO
2
1
MNDB-01-005
1
MNEC-01-019
MPTC-01-019