RedMax SRTZ2500 Owner's/operator's Manual

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RedMax SRTZ2500 Owner's/operator's Manual Manual pdf 21 page image

9. Maintenancen BLADES (MA1)• When refilling the tank or resting, it is often agood idea to use the time to oil the cuttingblades.• If a gap exists between the upper and lowerblades, follow the procedure below to adjustthem so that they fit more closely together.1. Loosen lock nut (A) as shown in the diagram.2. Tighten screw (B) fully, and then turn one-thirdto one-half of a rotation backward.3. While holding onto the screw to keep it inposition, tighten the lock nut.4. Check to make sure that the flat washer (C) isloose enough so that it may be turned bypressing on it with a finger.(1) Upper blade(2) Lower bladeScrewing in the screw too tightly may make itimpossible for the blades to move. Conversely, notscrewing in the screw tightly enough may make theblades of the trimmer feel dull and cause leavesand branches to become caught in the blades ofthe trimmer.NOTEMA1every every every25 50 100system/compornent procedure before hours hours hours noteuse after after afterfuel leaks, fuel spillage wipe out 4fuel tank, air filter, fuel filter inspect/clean 4 4 replace, if necessarysee nADJUSTING replace carburetoridle adjusting screw 4IDLING SPEED (p.19) if necessaryclean and readjust GAP: .025in(0.6~0.7mm)spark plug 4plug gap replace, if necessarycylinder fins, intake air cooling vent clean 4muffler, spark arrester, cylinder exhaust port clean 4throttle lever, ignition switch check operation 4replace ifcutting parts 4something's wronggear case grease 4screws/nuts/bolts tighten/replace 4 4 not adjusting screwsENGINESHAFTn MAINTENANCE CHART21