GREAT PLAINS QM150 Manual do Proprietário - Página 5
Procurar online ou descarregar pdf Manual do Proprietário para Instrumentos de medição GREAT PLAINS QM150. GREAT PLAINS QM150 16 páginas. Positive displacement fuel meter
Imprimir páginaCALIBRATION
The meter is accurately calibrated at the
factory for use with diesel fuel� Due to
differences in viscosity and flow rates,
the meter may require recalibration
to measure other fuels or to adjust
for inaccuracies� A gear replacement
kit is available (PN 139500-15, see
Illustrated Parts List section) to
convert the meter to unleaded fuels�
1� To adjust the calibration of the me-
ter, gain access to the calibration
screw by performing the following:
(see Figure 4)
2� Remove the back plate and the
(4) screws retaining it� The O-ring
seal under the plate must not be
damaged�
3� Using the 5MM hex L-wrench
provided with the meter, adjust the
calibration screw as required�
4� Note: The calibration screw set-
ting may have been adjusted at
the factory� The gasoline setting
is approximately fully closed (turn
clockwise)� Do not overtighten the
screw against the seat�
figure 4
5� Reinstall the plate, (4) screws
and the O-ring seal if removed�
Tighten (4) screws to 42-46 lb-in
[4�7-5�2 N
m] torque�
•
MAINTENANCE
The meter's strainer should be cleaned
at regular intervals, especially if reduced
flow is encountered�
Clean or Replace Strainer
1� Remove the socket screws at the
inlet fitting� Remove the fitting, O-
ring and strainer� (see Figure 5)
figure 5
2� The strainer rim is pressed into the
housing inlet but can be removed
by carefully grasping the end with
pliers and pulling with a wiggling
motion until free�
3� Using a fine brush, clean the strainer�
Replace the strainer as necessary�
4� Wipe the housing inlet clean and
reinstall strainer, pressing it into
the strainer bore� It is designed to
be field pressed back into place
using the end of a clean 1" pipe
nipple or similar tube tool using light
hammer taps�
CAUTION
The mesh strainer must always be
installed when operating the meter;
otherwise, particles may enter the
meter chamber and disrupt the
smooth operation of the oval gears�
5� Wipe clean the fitting and O-ring
groove� Coat the O-ring with oil or
light grease and seat into the fitting
groove�
6� Reinstall the inlet fitting and screws�
Tighten screws to 42-46 lb-in
[4�7-5�2 N
m] torque�
•
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