10.1
Electrical checks
BEFORE STARTING UP THE TIRE-CHANGER, BE
SURE TO BECOME FAMILIAR WITH THE LOCA-
TION AND OPERATION OF ALL CONTROLS AND
CHECK THEIR PROPER OPERATION (SEE PAR.
“CONTROLS”).
CARRY OUT A DAILY CHECK OF MAINTAINED-
TYPE CONTROLS CORRECT FUNCTIONING,
BEFORE STARTING MACHINE OPERATION.
11.0 CONTROLS
11.1
Control unit
It consists of two levers (Fig. 14 ref. A) and of two push buttons
(Fig. 14 ref. B) and a lever (Fig. 14 ref. C), with different functions,
fit onto a single control block.
The control unit can be used to move the upper and lower bead-
breakers and the tool and place them in the working position.
The control unit therefore governs all the movements necessary for
a complete bead-breaking, assembly and disassembly operation:
• bead rollers vertical shift movement.
• introduction of the bead breaker rollers inside the rim,
• mounting tool vertical shift movement.
The upper lever and button (A-B (UPP)) control the upper bead
breaker roller, vice versa the lower lever and button (A-B (LOW))
control the lower bead breaker roller.
Each lever has three positions:
- the first one (Fig. 14 ref. 1) is rest position, that keeps the bead
rollers into their current position.
- the second one (Fig. 14 ref. 2) (pressed lever, maintained-type
control) operates upper bead breaker roller descent (UPP. lever)
and/or lower bead breaker roller rise (LOW. lever).
- the third one (Fig. 14 ref. 3) (lever’s lifting) operates upper bead
breaker roller’s rise (UPP. lever) and/or lower bead breaker roller’s
descent (LOW. lever).
Pressing UPP. or LOW. maintained-type push buttons (Fig. 14
ref. B), the corresponding cam introduces the bead breaker roller
into the rim.
The control unit is also equipped with the lever (Fig. 14 ref. C) which
controls the ascent and descent of the tool:
- lift the lever to move the tool upwards;
- lower the lever to move the tool downwards.
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