Stihl MS 311 User Manual - Page 75
Installing, Pump Diaphragm
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1 23 12.6.3 Pump Diaphragm 1 165RA348 TG 0001RA364 TG 0001RA366 TG 2 : If there is an annular indentation (arrow) on the sealing cone of the inlet needle, fit a new inlet needle. : Position the inlet control lever (3) with spindle (2) on the spring (arrow) first, then slide the inlet control lever's clevis into the groove in the inlet needle (1). - Troubleshooting, b 3.6 - Remove the carburetor, b 12.5 Installing 1 Make sure the spring locates on the : Take out the screw (1). control lever's nipple. - Press the inlet control lever down - Remove the end cover (2). and secure it with the screw. If the gasket and pump diaphragm - Check that the inlet control lever moves freely. are stuck to the carburetor, remove them very carefully. 2 - Install the metering diaphragm, b 12.6.1 : Fit the inlet needle (1). : Fit the spring (2) in the bore. 0001RA363 TG 0001RA367 TG : Carefully remove the pump diaphragm with gasket. 74 MS 311, MS 391
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