Gasboy Atlas Start-up - Manual (Page 183)

MDE-4334D Atlas™ Start-up and Service Manual · July 2013 Page 6-63
Pump Motor Hydraulic/Mechanical Components
Belts and Pulleys
Following information is required to inspect and service the belts and pulleys:
Inspecting Belts and Pulleys
Check belts and pulleys every time you inspect or change belts. Replace them if any of these
conditions exist:
• Excessive wear in the pulley grooves, on the pulleys, belts, excessive pulley-to-shaft
clearance, or excessive bearing play
• Cracks or linear separations in the belt
• Frayed belts or excessively worn belts
Service Tips
• Excessive belt tension can cause motors or the pumping unit to fail prematurely.
• Excessively low belt tension can cause premature belt failure, noise or pulley failure as
well as reduced flow rate.
Belts and pulleys can pinch fingers and hands.
Injuries may result. Avoid placing fingers or hands between belts and pulley.
Never apply power while fitting the belt to the pulley.
WARNING
Setting Belt Tension
Overtightened belt tension can cause both pump and motor bearing to excessively wear out
and lead to premature failures. Loose belts result in low flow, pulley and belt failures, or noise.
Use the following rating of belt tension: 45-55 lbs (200-244 Newtons).
Do not run the motor to install the belt. The belt is tight during assembly. Some belts have
arrows marked on them to show the direction of rotation. While replacing the belts, ensure that
the arrows point in the direction of rotation.