4-70. JET LEVEL SENSOR REPLACEMENT (Con't).
Remove three bolts (2) jet level sensor (6), and shield from mounting channel (3).
Remove clamp (7) and tubing (8) from jet level sensor (6).
Remove two straight adapters (1) from jet level sensor (6).
b. INSTALLATION OF JET LEVEL SENSOR
When working inside tank, always provide adequate forced air ventilation
at the manhole opening with air directed into compartment where work
is being performed. Forced air ventilation allows for removal of any ex-
plosive quantities and contaminants resulting from the type of work be-
ing done, and serves to prevent oxygen deficiency. Failure to follow this
warning may result in death to personnel.
NEVER work alone inside a tank; a second person must be stationed at
the manhole opening. The person inside the tank must have a safety line
and harness on in case of emergency for rescue operations. In the event
a rescue operation is required, summon assistance IMMEDIATELY. DO
NOT attempt a rescue until assistance has arrived.
If connecting precheck tubing (10) to jet level sensor (6), perform
All male threads of fittings should be coated with antiseize tape if not
already factory-coated with an antiseize compound.
Install two straight adapters (1) to jet level sensor (6).
Install jet level sensor (6) and shield to mounting channel (3) with three bolts (2).
Connect tubing (4 and 11) to straight adapters (1) and tighten two nuts (5).
Install tubing (8) to jet level sensor (6) with clamp (7).
Connect precheck tubing (10) to jet level sensor (6) and tighten nut (9).