Komatsu 75001, Shop Manual

Page: 516 / 1293

SEN03838-00
WA250, 250PZ-6 30-130
43
130 Testing and adjusting, Part 3
Special functions of machine monitor (EMMS)
3) With the [<] and [>] switches, select 03:
FAN REV PD screen.
4) Press the [ U ] switch to settle.
a If the [ U ] switch is pressed, the screen
to adjust the interval of fan automatic
reverse operation is displayed.
5) With the [<] and [>] switches, select an
interval in the range from “0.1” to “200”
(Unit: h).
6) Press the [ t ] switch to settle the setting.
a The selected interval of fan automatic
reverse operation is not changed to a
value less than twice the continuance
of the fan automatic reverse operation.
7-2. Adjustment of continuance of fan automatic
reverse operation
a This function is used to change the contin-
uance of the reverse operation when the
f a n a u t o m a t i c r e v e r s e o p e r a t i o n i s
selected.
a The continuance of the fan automatic
reverse operation is adjustable in the
range from 0.5 minutes to 10 minutes. It
must be set to below 1/2 of the interval of
the fan automatic reverse operation, how-
ever, and cannot be set longer than 1/2.
a When the machine is delivered, the con-
tinuance of fan automatic reverse opera-
tion is set to 2.0 minutes.
a When the machine is delivered, the inter-
val of the fan automatic reverse operation
is set to 2.0 h.
1) On the service mode menu screen, dis-
play the TUNING screen.
2) Hold down the [ U ] switch for at least 5
seconds to display the next screen.
a Do not use this item.