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Dorner Mfg. Corp.
12
851-704 Rev. A
7400 Series End Drive Conveyors
Preventive Maintenance and Adjustment
Lubrication
Conveyor Bearings
Conveyor bearing lubrication is required. Dorner
recommends using an H-1 food grade grease.
1.
Add grease to the bearing using the zerk fitting
on the exterior of the bearing shaft
assembly.
Figure 28
2.
Replace the bearings if they become worn.
Wearstrips and Belt Returns
Replace the wearstrips and belt returns if they become worn.
For wearstrip and belt return installation instructions:
• Refer to “Wear Strip Installation” on page 8.
• Refer to “Belt Return Installation” on page 10.
Maintaining the Conveyor Belt
Troubleshooting
Inspect conveyor belt for:
• Surface cuts or wear
• Skipping
Damage to belt links or rods, surface cuts and / or
wear indicate:
• Sharp or heavy parts impacting belt
• Jammed parts
• Accumulated dirt
• Foreign material inside the conveyor
• Improperly positioned accessories
Skipping indicates:
• Excessive load on belt
• Worn sprockets or impacted dirt on drive pulley
Damage to belt links or rods indicate:
• Excessive load on belt
• Dirt impacted on sprockets
• Excessive or improper side loading
• Improperly positioned accessories
Conveyor Belt Replacement
Conveyors with Guides
1.
that connect
the guide
to the frame.
Figure 29
NOTE
Although bearings are sealed, re-greasing is
recommended to increase bearing life. An
H-1 food grade grease is recommended. The
frequency of bearing re-greasing is
dependent upon the application in which the
conveyor is being used. Frequency of re-
greasing will increase with the frequency of
conveyor washing.
NOTE
Visit www.dorner.com for complete list of
troubleshooting solutions.
1
WARNING
SEVERE HAZARD!
LOCK OUT POWER before removing guards
or performing maintenance. Exposed moving
parts can cause serious injury.
1
2