Grove toucan 1010, Service Manual

Page: 61 / 73

61
Models
Revision 02-2000
Toucan 1010
Stopping sequence - Brusque drive direction
inversion sequence :
In case of brusque drive direction inversion, the work
platform first slows down and then stops before re-
starting in the opposite direction (as described in
the Start Sequence). The time delay for the work
platform to re-start in the opposite direction can be
adjusted by means of the potentiometer (P3). During
this time delay, the pump motor is running at low
speed, providing make-up flow to the hydraulic wheel
motors.
Setting
NOTE
The potentiometers arrow head indicator
positions shown on the figures below
correspond to an approximate setting.
Potentiometers with arrow head indicators :
Potentiometers without arrow head indicators :
NOTE
A smooth jerk occurs when the machine
switches from TORQUE speed to HI speed or
from HI speed to TORQUE speed.
Potentiometer (P1) setting :
1. Position the DRIVE SPEED selector switch to
HI speed ( ).
2. Perform a DRIVE REVERSE movement by
fully pulling the controller towards the operator
as quickly as possible.
3. The work platform should start in TORQUE
speed then should switch to HI speed within
an approximate 2 seconds time delay.
- If the time delay for the work platform to switch
to HI speed is longer than 2 seconds, reduce
the delay by turning slightly (by 1/32 turn) the
potentiometer P1 wiper screw anticlockwise.
- If the work platform switches too quickly to HI
speed, the work platform may not be able to
go forward or backwards, increase the delay
by slightly turning (by 1/32 turn) the
potentiometer P1 wiper screw clockwise.
Lower Control Box Electronic Board
P1
-
+
P2
+
-
P3
-
+
-
+
+
-
-
+
P1 P2 P3
MAINTENANCE 5 5