HydraMaster Boxxer 421, Owner'S Manual

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HydraMaster Corporation
Page 3-4: Operating Instructions
Boxxer 421
Shut Down
1. Flush clear water through the chemical system for 10 seconds. Turn off
the chemical flowmeter.
2. Cool the machine by lowering the adjustable thermostat to the “ LOW ”
position and the DIVERTER CONTROL switch to the “ OFF ” position while
spraying the cleaning wand into the vacuum hose for three to five minutes.
The chemical will be flushed from the unit, hoses and cleaning tool.
NOTE: If the machine is not properly cooled, the water box can overflow.
3. Remove the vacuum hose.
4. At this time, the blower should be lubricated with an oil-based lubricant.
See Lubrication in the Blower Operation and Maintenance Manual
included in Section 8 of this document.
NOTE: If freeze guarding is necessary, perform the freeze guard
procedure at this time. (see Section 4 for Freeze Guarding )
5. Lower the engine RPMs to idle.
6. Turn the key off.
7. Drain the water box.
8. Drain the vacuum tank. The vacuum filter should be cleaned prior to
mobilization of the van.
NOTE: In accordance with the EPA, state and local laws, do not dispose of
waste water into gutters, storm drains, streams, reservoirs, etc.
9. Perform daily maintenance as prescribed in this manual .