Sterling 882.00379.00 User Manual
Conveying System Mechanical Components Chapter 5: Maintenance
82 of 138
5-2 Preventative Maintenance
Maintaining Pump Packages
Pump packages need periodic maintenance to provide long dependable service. Check these
elements regularly:
elements regularly:
•
Maintain a proper oil level in the blower gearbox. The manufacturer’s brochure
(packed with the pump package) recommends oils, and lists instructions for checking
the oil level. See Oil Capacities chart on following page.
the oil level. See Oil Capacities chart on following page.
•
Pack blower bearings with high temperature ball bearing grease and change the oil to
the manufacturer’s recommendations.
•
V-belts are sized for maximum life with the pump package blower/motor combination.
Inspect periodically for proper tension, and replace when worn.
Note: V-belts stretch when new. Check belt tension after you have run them in. At
proper belt tension, the belt should deflect downward
1
/
64
” for every one inch
span (1 mm every 6.4 cm) from sheave to sheave.
•
Keep the pump package area clear of any debris that could be drawn through the vent
valve and into the blower while the pump package is idling.
•
Torque the motor and blower sheave bolts to 72 ft.-lbs. (98 NŸm).
•
Check the moisture traps in the compressed air lines. Drain as needed.
•
Check the compressed air lubricator(s) for flow rate and level. Use only 1 or 2 drops
of oil per day when lubricating. Adjust and fill as necessary.
•
Inspect the silencer periodically for contamination. Silencer fouling indicates poor
filter maintenance at the vacuum hopper or filter chamber. Fines may also be drawn
into the silencer through the pump package vent valve during the dump cycle from
poor housekeeping near the pump package.
into the silencer through the pump package vent valve during the dump cycle from
poor housekeeping near the pump package.
Caution!
Make sure you replace a contaminated silencer immediately to avoid
blower damage and possible fire hazard.
blower damage and possible fire hazard.
•
Standard pump package TEFC motors do not require lubrication or oiling. Optional
motors may have different requirements. Refer to the motor manufacturer’s
specification sheet in your Customer Information Packet.
specification sheet in your Customer Information Packet.
•
Keep the control panel and pump package junction boxes securely closed to prevent
component contamination.
•
Inspect air cylinders and plugers for proper operation.
•
Verify that all safety components/circuits are in full operational conditions.