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7.3 Refill Capacities/Lubricants
General Information
Lubrication is an essential part of preventive maintenance, affecting to a great extent the useful life of
the unit. Periodic lubrication of the moving parts reduces to a minimum the possibility of the mechanical
failures.
The lubrication chart that follows in this section shows those items requiring regular service and the
interval at which they should be performed. Details concerning the oil and other lubricants follow the
lubrication chart. A regular service program should be geared to the items listed under each interval.
These intervals are based on the average operating conditions. In the event of extremely severe, dusty,
or wet operating conditions, more frequent lubrication than specified may be necessary.
•
Specific recommendations of the brand and grade of lubricants are not made here due to regional
availability, operating conditions, and also the continual development of the improved products.
For more information, refer to component manufacturer's manual.
•
All the oil levels are to be checked with the roller parked on a level surface and while the oil is cold,
unless otherwise specified.
•
On plug type check points, the oil levels are to be at the bottom edge of the check port.
•
All the grease fittings are SAE standard unless otherwise indicated. Grease the non-sealed fittings
until the grease is seen extruding from the fitting. One ounce (28 grams) of EP-MPG equals one
pump on a standard one pound (0.45 kg) grease gun.
•
Over lubrication on the non-sealed fittings will not harm the fittings or components, but under
lubrication will definitely lead to a shorter lifetime.
•
Grease fittings that are worn and do not hold the grease gun or those that have a stuck check ball
must be replaced.
To prevent the minor irregularities from developing into serious conditions, several other services or
checks are recommended for the same intervals as the periodic lubrication:
•
Thoroughly wash all fittings, caps, plugs, and the like with a non-flammable and non-toxic cleaning
solution before servicing to prevent dirt from entering while performing the service. During the
regular lubrication service, visually check the entire unit with regard to cap screws, nuts, and
bolts being properly secured.
•
Spot check the several cap screws and the nuts for proper torque. If any are found loose, a
more thorough investigation must be made.
•
If a defect is detected, that requires special service, stop the roller operation until the defect has
been corrected. If necessary, contact the Dynapac representative for assistance.
57
Maintenance
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