50 Troubleshooting
INLET
BUSHING
TURBINE
O RING
SENSOR
BEARING
BUSHING
BEARING
OUTLET HOUSING
DECAL
CALIBRATION
DWG. NO. 2767
DISASSEMBLY
Refer to drawing 2767 for proper parts place-
ment.
Remove the three nuts holding the two flowmeter
halves together.
Carefully pull the two halves straight apart. If
flowmeter is not pulled apart straight, damage to
bushings and shaft may result.
Remove any chemical or rust residue. Flush thor-
oughly with water. NOT WITH DIESEL FUEL.
TURBINE - Inspect the turbine and shaft for
damage or excessive wear.
BUSHINGS - Inspect the two graphite bushings.
The inside diameter should not be oval.
BEARINGS - Inspect the two sapphire end bear-
ings. Cracked bearings should be replaced.
These “glass” bearings are held in place by the
“pressed in” graphite bushings.
To replace a bushing or bearing, gently insert by
hand a #6 sheet metal screw into the graphite
bushing and pull.
NOTE: Damage may result to the sapphire
bearing if the screw is inserted too far.
Do not reuse graphite bushings after removal.
Use new bushings.
O-RING - Some chemicals may slightly deform
the o-ring. Replace if necessary.
ASSEMBLY
Place the turbine and o-ring into the housing half
without the sensor, with magnet end of the tur-
bine showing.
Carefully mate the flowmeter halves together.
Install the three 1/4 inch stainless steel screws.
IMPORTANT: Torque the three 1/4 inch ny-
lock nuts equally to 8.3 foot pounds (100 inch
pounds).
The turbine should spin freely when a very small
amount of air is directed into the flowmeter.
Summary of Contents for 8160
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