2.4 Cleaning
Clean the crumb screen with a solution of detergent and water. Clean the exterior surfaces of the MSDU with a soft cloth and a solution of detergent and water. It is not necessary to clean the interior of the reservoir, but if desired it may be wiped down with clean paper towels to remove excess residual oil.
WARNING
DO NOT clean the interior of the reservoir with water or detergent. Introduction of water or detergent into the unit will permanently damage the pump.
3.SERVICE PROCEDURES
3.1 Introduction
Other than routine cleaning and the replacement of worn suction tube
3.2 Replacing Worn or Damaged O-Rings
If pump efficiency degrades, it is likely that the
1.Lift the pump assembly straight up and out of the handle assembly.
2.Remove the worn or damaged
3.Insert the suction tube through the tube bracket in the handle and into the receiver on top of the reservoir. Push down on the pump assembly to make sure the suction tube is fully seated.
3.3 Replacing Worn Pump Vanes and/or Pump Shaft Seal
Depending upon the amount of use, the vanes in the pump assembly will eventually wear, reducing the efficiency of the pump. The pump shaft seal can also become worn and start to leak. A kit for replacing the vanes and the seal is available. The pump shaft seal can also be purchased as a separate item. To replace the pump vanes, and/or the pump shaft seal, follow the steps below (refer also to the illustration on Page 6).
1.Loosen the setscrew securing the pump handle to the pump shaft and slip the handle off the shaft.
2.Remove the five screws securing the front cover and remove the cover.
If replacing the pump shaft seal only, remove the old seal and install the replacement as shown in the illustration on Page 6, then go to Step 5.
If replacing the pump vanes, go to Step 3.
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