Dewalt DXCMPA1982054 Instruction Manual - Page 18
Belt Replacement, Adjusting Belt Tension
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English tainer. 3. Replace the oil drain plug (S) and tighten securely 4. Slowly add compressor oil until it reaches the middle of the sight glass (T). NOTE: When filling the crankcase, the oil flows very slowly into the pump. If the oil is added too quickly, it will overflow and appear to be full. CAUTION: Overfilling with oil will cause premature compressor failure. Do not overfill. 5. Replace oil fill plug (U) and tighten securely. V = Full W = Add S = Oil drain plug T = Oil level sight glass U = Oil fill plug Fig. 4 Belt Replacement WARNING: This unit starts automatically. ALWAYS shut off and unplug the compressor, and bleed all pressure from the system before servicing the compressor, and when the compressor is not in use. Do not use the unit with the shrouds or belt guard removed. Serious injury could occur from contact with moving parts. Hot surfaces. Risk of burn. Pump head, and surrounding parts are very hot, do not touch (see the Hot Surfaces identified in Fig. 2). Allow compressor to cool prior to servicing. 1. Set the Auto/Off lever to X "Off", unplug the unit, and relieve all air pres- sure from the air tank. 2. Remove the belt guard by removing the 5 screws (X) using a Phillips head screwdriver. 3. Mark pump position on saddle. 4. Loosen the motor mounting screws and slide the motor toward the air compressor. 5. Remove the belt and replace with a new one. 6. See the Adjusting Belt Tension before tightening motor mounting screws. Adjusting Belt Tension 1. Slide motor into original position, line the motor up with the mark made earlier on saddle. 2. Tighten two outside motor mounting screws enough to hold the motor in place for checking pulley and flywheel alignment. 3. The belt should deflect 1/2" (13 mm)at midway between the pulley and the flywheel when a 5 pound (2.26 kg.) weight is applied at the midway point. 3. When proper belt tension is achieved, tighten all 18