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MAINTENANCE
FILTER SERVICE
Replace filter elements of the hydraulic oil pressure filters
NOTICE
When a fault message "Pressure Filter restricted" is dis-
played, stop work and replace element of the corresponding
pressure filter.
Legend for illust. Z 22515
(Rr.1)
Control and filter panel of rear power unit, engine 1
(Fr.2)
Control and filter panel of front power unit, engine 2
(1)
Change over valve for operation mode of pump control sys-
tem for rear power unit, engine 1.
(2)
Change over valve for operation mode of pump control sys-
tem for front power unit, engine 2.
(3)
Pressure oil filter for fan drive hydraulic motor of coolant radi-
ator for rear engine "1". Filter restriction monitored by differ-
ential pressure switch B21-1.
(4)
Pressure oil filter for pump distributor gear PTO "1" lubricating
oil. Filter restriction monitored by differential pressure switch
B27-1.
(5)
Pressure oil filter for fan drive motor of hydraulic oil cooler "1".
Filter restriction monitored by differential pressure switch
B28-1.
(6)
Pressure oil filter for pilot- and pump control oil circuit. Filter
restriction monitored by differential pressure switch B22.
(7)
Pressure oil filter for fan drive hydraulic motor of coolant radi-
ator for front engine "2". Filter restriction monitored by differ-
ential pressure switch B21-2.
(8)
Pressure oil filter for pump distributor gear PTO "2" lubricating
oil. Filter restriction monitored by differential pressure switch
B27-2.
(9)
Pressure oil filter for fan drive motor of hydraulic oil cooler "2".
Filter restriction monitored by differential pressure switch
B28-2.
4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH
475
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