To Replace Vacuum Fan Impeller Screen - Tennant ATLV 4300 Service Manual

VACUUMING
TO REPLACE VACUUM FAN IMPELLER
SCREEN
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, Set Parking Brake.
NOTE: Anytime hopper or vacuum system parts
are serviced the seals should be inspected and
replaced if necessary.
1. Open the hopper cover.
2. Go under the hopper cover and locate the
vacuum fan impeller screen. Remove the
three flat head screws and the one hex
screw holding the screen to the impeller.
3. Pull the impeller screen off the vacuum fan
motor shaft. Make note of the orientation of
the spacers.
4. Install the new impeller screen, spacers, and
sleeve onto the vacuum fan motor shaft.
5. Use blue loctite (242) on the threads of the
impeller screen hardware. Reinstall the one
M8 hex screw and three M6 flat screws.
6. Close the hopper cover.
7. Operate the machine and check the vacuum
fan for proper operation.
3-18
ATLV 4300 330495 (10- -98)