8-9: Troubleshooting
VACUUM SYSTEM
1.0 A weak vacuum at wand. The gauge reads normal.
Possible Cause
Solution
1.1 Blockage in the hoses or
wand tube
Disconnect the hoses and check for an obstruction.
1.2 Excessive length of
hose connected to the
truckmount
Do not attach excessive lengths of hose.
2.0 A weak vacuum
Possible Cause
Solution
2.1 Air leak somewhere in the
vacuum system.
Check the vacuum relief valve for proper adjustment.
Carefully check all the vacuum hoses for a cut or
break.
Check the recovery tank lid gasket.
Make sure the recovery tank drain valve is fully
closed.
2.2 The vacuum blower is
turning too slowly.
Check the rpm of the engine. Adjust as necessary to
3,150 rpm under a 0” Hg vacuum load.
2.3 The vacuum gauge is
defective.
Test the gauge and replace if necessary.
3.0 The vacuum gauge reads too high with no hoses attached
Possible Cause
Solution
3.1
The filter in recovery tank
is clogged.
Remove and clean or replace as necessary.
3.2 The hose from recovery
tank to the vacuum blower
is collapsed internally.
Inspect and replace as necessary.
Содержание Boxxer 318HP
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