6
Maintenance
Replacing the Primary Pistons Seals
68
Accela Pump Hardware Manual
Thermo Scientific
Figure 50.
View of the piston inserted into the holding hook and the secondary piston seal
installed on the piston
6. Slide the guide bushing onto the piston (see
Figure 51
).
Figure 51.
View of the holding hook, piston, secondary piston seal, and guide bushing
assembly
7. With its spring facing toward you, slide the black, primary piston seal onto the piston.
The piston should protrude by approximately 6 mm as shown in
Figure 52
.
Holding hook
Secondary piston seal
Piston
Guide bushing
