Graco Gusmer H-20 Pro Operation page 10

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F . 4: Component Identification - Front Controls
IG
20 Main Power Disconnect
Controls power to all circuits. Must be ON for any
function of proportioning unit to operate. Lock
disconnect in OFF position during machine
maintenance.
Incoming power leads from main electrical source
remain energized when main power disconnect is off.
To fully de-energize the electrical console, switch off
and lock out incoming power at source.
21 Main Power Light (White)
Illuminates when main disconnect switch is in ON
position and control power transformer is
operational.
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22 Control Power Switch
Controls120 VAC control power circuit. In ON
position, amber light within switch illuminates.
In OFF position, all machine operation stops
including motion and heating.
23 Emergency Stop Switch
Interrupts units control power circuit to stop all
motion and heating. Switch mechanically locks in
stop position. Turn switch clockwise to reset and
restore normal operation.
24 Motor Control Switch
Controls power to electric motor circuit. In ON
position, green light within switch illuminates and
hydraulic oil begins circulating.
25 Counter
Records cycle count of proportioning pumps. One
cycle equals two strokes (one in each direction).
Component Identification
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311392C
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