PULLER-TENSIONER
Model: AFS303
Manual: MI-AFS303-320-00-GB
4. HOUR COUNTER PAGE
This page shows the working hour of the diesel
engine in the center and 4 percentage check
icons on the edges:
diesel engine water cooling temperature
hydraulic oil temperature
diesel engine fuel level
Switch from one page to the other one by using the up () or down () key.
4.6 STARTING OF THE MACHINE
a. Operate from the principal control panel (table 1).
b. Position to centre the control lever of the variable delivery pump.
c. Turn of one point the starting key (table 1, pos. 14).
d. Push and turn up to starting the starting key (table 1, pos. 14) and simultaneously keep the lever
(table 1, pos. 4) lowered.
The lever (table 1, pos. 4) must be lowered for a few seconds after the engine start-up.
e. Regulate the rpm with the accelerator (table 1, pos. 12).
f. Verify that the pressure indicate on the feeding manometer (table 1, pos. 7) is more than 20 bars
with minimum rpm; on the contrary stop the machine.
ATTENTION: when starting a cold machine, after heating the hydraulic oil as previously
described, begin stringing operations limiting the maximum working performances for
at least the first 15 minutes, that means to keep at half accelerator the Diesel rpm and
don’t exceed the 30% of the maximum stringing speed.
4.7 PULL CONTROL
The machine is equipped with two pull control devices for the control of the max. pull value on the line:
1. PULL LIMITING DEVICE that stops the machine when reaching the max. pull
2. PULL PROGRAMMING DEVICE that stops only the bull-wheels rotation keeping the diesel engine
turned-on when reaching the max. pull.
4.7.1 PULL LIMITING DEVICE SETTING
Completely turn right the knob (table 1, pos. 6).
With the suitable pawl, connected to the dynamometer move the red arrow in correspondence of
the max. pulling value that has not to be exceeded.
When the pre-set pull value is reached, the machine stops automatically and the diesel engine turns
off while the negative brakes automatically insert with the consequent stop of the bull-wheels
rotation. When the pull value is exceeded the warning light (table 1, pos. 20) on the control panel
turns on.
DANGER: when using a machine as tensioner, position the pull limiting device
(table 1, pos. 20) on the maximum scale, to avoid dangerous stopping.
This operation is absolutely indispensable when the machine “tensioner” works with a
puller without pull limiting device.
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