HARDI-EVRARD ALPHA PLUS 4100 - Advanced System Adjustments; Electronic Anti-Skid Unit Operation

ALPHA PLUS HARDI NOVA
DD EE SS CC RR II PP TT II OO NN AA NN DD OO PP EE RR AA TT II OO NN
CHAPTER
22-
26
22 -11 44 EE LL EE CC TT RR OO NN II CC AA NN TT II -SS KK II DD UU NN II TT (( OO PP TT II OO NN ))
TWIN
RPM
+
-
REGU
LOR
S
E
L
E
C
T
I
O
N
N
E
R
A
L
'
A
R
R
E
T
AUTO
MANU
22-
1133
-
55
AANNGGLLIINNGG OOFF AAIIRR AANNDD LLIIQQUUIIDD AADDJJUUSSTTMMEENNTT
HARDI NOVA TWIN 4520 module
By pressing the TWIN module pre-set or switches on the joystiick for more than 3 seconds , the current set-
tings of the fan speed and the air slot angle is memorized.
By pushing one of the pre-set keys, the Twin module activates the appropriate stored parameters for speed
and air air angle (HARDI NOVA see Nova manual)
2
4
S2
S1
S3
S4
3
1
1
2
3
4
5
R3
R1
R2
R1
FRONT RIGHT
FRONT LEFT
REAR LEFT
REAR RIGHT
The anti-skid system has to be operated when the machine works in hard and hilly conditions
CA
UTION : Switch on the anti-skid system before starts slipping of the machine
Push on the switch
((11))
, control light
((22))
lights up to indicate anti-skit is operating
The speed sensors
RR11
to
RR44
incorporated the hydraulic motors
((55))
continuously measure the rotation speed
of each drive wheel. The regulating computer
((44))
compares those speeds and if necessary reduces hydraulic
flow to the wheel which has a tendency to spin.
11
Hydraulic pump
22
Hydraulic valve S1 to S4
33
Speed sensor R1 to R4
44
Electronic unit
55
Hydraulic motor 1 to 4
Speed sensor (Input)
Hydraulic valve control (Output)
Hydraulic circuit
2
1