142
Section 4 - lubrication & maintenance
Typical Vacuum Blower
Vacuum Blower
Maintenance Overview
The vacuum blower operates at an extremely high
RPM and has specific lubrication and maintenance
requirements. It is also very susceptible to dam-
age from debris because of the tight tolerances in
the blower impellers. Refer to the Maintenance Ma-
trix in this section and the blower manufacturer’s
operating manual for lubrication specifications and
maintenance schedules.
Remember that there is a special shutdown proce-
dure for the blower that includes light protective
oil to be injected into the service port with the
blower operating. This procedure is essential to
eliminate corrosion on internal blower components
that will cause the blower to seize when it is shut-
down. Refer to Daily Shutdown in this section for
the blower shutdown procedure.
Be sure the vacuum filter is always in good operat
-
ing condition with the plug inserted in the service
port so it fully protects the blower from collect-
ing vacuumed debris internally. If paint debris
ever gets into the blower impellers, use a paint
or lacquer thinner or other non-corrosive cleaner
to remove any residue build-up inside. It will be
necessary to remove the silencer in order to clean
the blower. Remember that if large debris gets
into the blower, it can cause severe damage to
the blower. Refer to Vacuum Canister & Filter for
instructions on maintaining the vacuum system
and cleaning the filter.
Daily Maintenance
•
Check for obvious loose mounting nuts and
bolts.
•
Check the oil level in the gear end of the
blower. It should be within 1/4” of the overflow
plug threads.
•
Grease blower drive end bearings with the lu-
bricant recommended by the blower manufac-
turer. Refer to the Service Matrix for lubricant
specifications.
• Clean the vacuum filter before each shift. Drain
the filter canister and check the filter at least
once every 2 hours of operation. Filters may
be cleaned with a pressure washer up to 2000
PSI (138 bars). A mild solvent solution may
be used to clean thermoplastic or tar residue
from the filter surface.
• Inspect the filter for holes or thin areas that
could allow vacuumed water or debris to get
into the vacuum blower or silencer. Clean,
secure filtration is necessary to keep your
vacuum blower in good operating condition.
Replace if necessary.
•
Check the vacuum canister door seal. Clean
or replace the seal if necessary.
200 Hour Maintenance
Perform all daily maintenance along with the items
outlined in this section.
•
Inspect hydraulic motor coupler, hydraulic
hoses and bolts.
•
Inspect and tighten all mounting bolts, hose
clamps and hardware.
•
Lubricate drain ball valve. Make sure to open
and close all ball valves at least once every
200 hours to keep them free and operating
properly.
•
Inspect, clean and lubricate the vacuum relief
valve to keep it operating properly.
• Inspect all hoses and fittings for signs of dete
-
rioration, chaffing and leaks. Repair or replace
as necessary.
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