Pivoting Extension Boom
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11 MAINTENANCE AND INSPECTION
The chart indicated below shows different inspections and the frequency at which they should
be performed.
Frequency of
inspections
Components
Procedures
Daily
Pivot joints
Move extension boom left and right and ensure
boom moves in desired location.
Support base
Push extension boom up and down. Ensure there is
no excessive "play" in movement.
Weekly
Flexible hoses
Ensure hose clamps are secured.
Check for cracks or tears in fabric. Replace if necessary.
Yearly
All components
Check sturdiness of support base installation.
Check wear on pivot friction discs and steel pins.
Check all welds.
Problem
Probable cause
Solution
Extension boom does
not stay in place
Boom base not level
Ajust level on boom base.
Friction discs worn out
Replace friction disks.
Insufficient suction
of dust or smoke
Tear or hole in
flexible hose fabric
Replace flexible hose.
Hose clamps loose
Tighten clamps or replace if necessary.
12 TROUBLESHOOTING