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Air Purge
Prior to using equipment, purge chemical system of air
and test oil residual from functional testing at factory.
1. Turn on main air supply to transfer pumps and
drums/day tanks.
2. Open A- and B-inlet supply valves. Check for chemi-
cal leaks.
3. Turn hydraulic pressure control fully counterclock-
wise.
4. Turn ON red main disconnect. White main power
light will illuminate.
5. Turn ON amber control power switch; light within
switch will illuminate.
6. Hold coupling block with A- and B-ports over sepa-
rate containers and open both manual valves.
7. Turn ON hydraulic motor switch.
8. Turn pump switch to NORMAL position. If neces-
sary, gradually increase hydraulic pressure by turn-
ing hydraulic pressure control clockwise to start
proportioning pumps moving slowly.
A screeching noise is a characteristic of cavitation
and is normal at initial start-up for a maximum of 30
seconds. If screeching continues for more than 30
seconds, switch off pump switch and hydraulic
motor switch, and ensure that inlet fittings are tight
and that pump has not lost its prime.
311392C
9. Allow material to flow out of coupling block until spit-
ting of air stops and all traces of residual material
have disappeared. Close manual valves and flush
any residual chemical from outside of coupling
block. See Gun Operation Manual.
Properly dispose of waste chemicals in accordance
with applicable local, state, and federal codes.
10. Slowly increase hydraulic pressure and check all fit-
tings for signs of hydraulic chemical leaks. Tighten
fittings as required.
11. Turn OFF pump switch.
12. Mount spray gun to coupling block.
Af
After proportioning unit is at operating pressure and
hose connections are tight and free of leaks, use
duct tape to wrap hoses and electrical wires around
rubber isolators forming a compact bundle. If using
a scuff jacket, pull it over bundle and secure with
duct tape.
Hose Power Control System
The Hose Power Control System automatically main-
tains optimum power setting for hose heat systems with
any hose length from 50 ft. (15 m.) up to 410 ft. (125 m.).
There are no operator controls or adjustments required.
The system eliminates the need for manual adjustment
of transformer tap settings or manual hose heat power
control.
Initial Set-up
19
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