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MAXX 450D/470/Diesel
HydraMaster Corporation
02/21/06
9. If used, turn PUMP OUT switch to “ON” (switch light will be illuminated).
10. Set cleaning pressure at desired level.
Suggested Settings
Carpet Cleaning: 300 - 400 psi;
Hard Surface: 900 -1000 psi or as indicated on the tool.
Note: If pressure is above 900 psi the life of the chemical pump diaphragm
may be shortened.
11. Turn the chemical selector valve to the “PRIME” position to purge any
air from the system.
a. If the chemical does not begin to flow through the flowmeter within 60
seconds, remove the chemical PRIME line (the one without the filter)
from the chemical container and insert it into the vacuum hose connec-
tion at the front of the machine.
b. When the chemical begins to flow through the flowmeter, with the flow
indicator reading maximum flow and the PRIME line pulsing, turn the
chemical selector valve to “ON”, and place the chemical PRIME line back
into the chemical container.
c. Then, while spraying solution from the cleaning tool, adjust the chemical
flow by turning the chemical adjustment knob to the desired level.
12. Commence cleaning.
Upholstery Cleaning
NOTE: The engine throttle has three settings: IDLE, ECONOMY, and
HIGH PERFORMANCE.
1. Start engine with the THROTTLE switch in the “IDLE” position.
Allow the machine to run in idle for 2 - 3 minutes to warm up.
2. Connect hoses.
3. Connect the upholstery tool.
4. Move the THROTTLE switch to “ECONOMY” or “HIGH PERFORMANCE” mode
.
5. If used, turn the PUMP IN switch to “ON” (switch light will be illuminated).
6. Turn the PUMP switch to “ON” (switch light will be illuminated).
7. Turn the DIVERTER switch to “ON” (switch light will be illuminated).
During upholstery cleaning if you desire a lower temperature you may
want to leave the DIVERTER switch in the “OFF” position.
10/5/01
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