7. PISTON-CYLINDER MAINTENANCE
Page 113
© 2007 DH Instruments, a Fluke Company
7.5
PUTTING THE PISTON INTO THE CYLINDER
Never attempt to put the piston into the cylinder without using the special piston insertion tool and
the procedure described in this section. Doing otherwise can result in the piston cocking in the
cylinder and damage to both parts.
When the piston has been removed from the cylinder, it must be put back into the cylinder before the
piston-cylinder can be reinstalled in the FPG Platform.
Figure 62.
Alignment of the FPG piston in the cylinder
The piston must be installed in the cylinder with the correct end at the top and the correct rotational
orientation. Installing the piston incorrectly in the cylinder may result in poor FPG performance and/or
out of tolerance measurements.
Place the cylinder in the FPG piston insertion tool
cup so that the serial number etched on the
outside of the cylinder is towards the top and right
side up.
Slide the cup and cylinder all the way down the
insertion tool spindle.
