Operating instructions

9
To correct this, stand the mast at a vertical position and inject some Hilomast
lubricating oil, allowing it to drain down inside the tubes. Then pull out each section in
turn and thrust downward (with the air release valve closed). This forces the lip of the
seal back to its original position against the wall of the tube.
DISMANTLING THE MAST
If possible, lay the mast horizontally and pull out the sections to full extension. MAKE
SURE TO PROVIDE THE MAST WITH SEVERAL SUPPORTS ALONG ITS
LENGTH TO PREVENT THE TUBES BENDING. Apply low air pressure to the mast
and test for air leaks around the collars using a soap solution. If an air leak is
discovered, remove the sections above that collar i.e. all the smaller sections, as one
unit if possible, by releasing the collar from its tube (see following instructions). If no
positive leaks are found by the above method, closely examine the keyways for
cracks. If none can be found proceed as follows:
PIN
COLLAR LOCATION
PAN HEAD
SCREW M6x10mm
SCREW M6x10mm
PAN HEAD
SCREW M6x10mm
PAN HEAD
SOCKET HEAD
SCREW M8x30mm
LOCKING COLLAR
STRIP
COLLAR LOCKING
PAN HEAD
SCREW M6x10mm
LOCKING STRIP
DAMPER
RING
COLLAR SLIDE
NYLATRON KEY
SCREW
RETAINING
COLLAR
THUMB SCREW
SCREW
RETAINING
COLLAR
COLLAR
AIR INLET
BASE PISTON
MAST TUBE
AIR RELEASE
BASE PISTON
SCREW SELF TAP
O-RING
VALVE
VALVE