Blackhawk Technology Company
V-2PneumaticPistonPumpI&O-10365 | 20220811
16
Maintenance
PERIODIC CHECKS
• Check pump back pressure at the discharge tee.
⸰
• Check liquid discharge rate at the discharge tee.
⸰
• Check air leakages at actuator drive motor.
⸰
•
⸰
REPLACING SEALS IN THE ACTUATOR DRIVE MOTOR.
•
• The actuator’s drive motor has a number of seals in it and they will wear over
time.
• The cylinder nose seal cartridge, located below the actuator cylinder, is a critical
seal.
⸰ If this seal starts to leak air, pressure cannot be built up in the cylinder and the
actuator will not reciprocate. Replace cylinder seals at this time.
REPLACING STUFFING BOX SEALS.
•
•
⸰
⸰ Seal life depends on discharge pressure, stroke speed, grit and temperature of
liquid.
⸰
port.