Evc Operating Unit; Hydraulic System (Tractor Operated Hydraulics) - Hardi Commander Twin Force Plus Instruction Book

EV EVC Oper EV C Oper C Opera a a a a ting unit C Oper ting unit ting unit ting unit
EV EV C Oper ting unit
FAULT
Operating unit not function-
ing
Hy Hy dr dr dr draulic sy aulic sy aulic sy stem (Tr r r r r actor Oper stem (T stem (T
Hy Hy Hydr aulic system (T aulic sy stem (T
FAULT
Boom slow/eradic.
Ram not functioning.
Fault-finding
PROBABLE CAUSE
Blown fuse(s).
Wrong polarity.
Valves not closing properly.
No power.
actor Opera a a a a ted Hy actor Oper actor Oper ted Hy ted Hy
actor Oper ted Hydr ted Hy
PROBABLE CAUSE
Air in system
Regulation valve incorrectly set
Insufficient hydraulic pressure
Insufficient amount of oil in
tractor reservoir
Restrictor or regulation valve
blocked
CONTROL/REMEDY
Check mechanical function of micro-switches.
Use cleaning/lubricating agent if the switch
does not operate freely.
Check motor. 450-500 milli-Amperes max.
Change motor, if over.
Brown - pos. (+). Blue - neg. (-).
Check valve seals for obstructions.
Check micro-switch plate position. Loosen
screws holding plate a
Wrong polarity. Check that brown is pos. (+),
Blue is neg. (-).
Check print plate for dry solders or loose
connections.
Check fuse holder are tight around fuse.
dr dr dr draulics) aulics) aulics)
aulics) aulics)
CONTROL/REMEDY
Loosen ram connection and activate hydraulics
until oil flow has no air in it (not whitish).
Open or close until desired speed is achieved
(clockwise = less speed).
Remember oil must be at operating tempera-
ture.
Check output pressure of tractor hydraulics.
Minimum for sprayer is 130 bar.
Check and top up if needed.
Secure boom with “S” hook.
Dismantle and clean.
GB 16 02
/ turn.
1
2
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