4-25. JET LEVEL SENSOR MAINTENANCE.
This task covers:
INITIAL SETUP :
General Mechanic Tool Kit (Appendix B, Section III, Item 3)
Dry Cleaning Solvent (Appendix E, Section II, Item 1)
Sealing Compound (Appendix E, Section II, Item 6)
Rags, Wiping (Appendix E, Section II, Item 13)
Lockwashers (b) (Appendix F)
Pumping Unit Shutdown
Tank 1/2 Full or Less
General Safety Instructions
Do not smoke within 50 feet (15.34 meters) of the Tank and
Dry cleaning solvent is potentially dangerous to personnel and
Open manhole (1), remove capscrews
(2) and lockwashers (3).
Maneuver sensor (6) out for access, then
disconnect sensor tubes (4). Note which tube is inlet
and outlet. Clean tube and apply tape to prevent tube
nuts (5) from falling back down tubes (4). Do not allow
tubes (4) to fall into tank.
Remove jet level sensor (6) from tank.
Loosen hose clamp (7) and disconnect
Remove capscrews (9), lockwashers (10)
and remove the jet level sensor (6) with deflector shield
(11) from bracket (12).
Remove screws (13) and flat washers (14) to
release tray (15) from sensor (16).