Poulan PP16H44A User Manual - Page 20
Adjust, Attachment, Clutch
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SERVICE AND ADJUSTMENTS FRONT-TO-BACK ADJUSTMENT (See Figs. 27 and 28) To obtain the best cutting results, the mower housing should be adjusted so the back is approximately 7/8" to 1-1/8" higher than the front when the mower is in height adjustment position. Measure distance "D" from ground line to bottom of deck curl at centerline outside of mandrels. / BACK 5 T _7- D + 7/8" TO 1-1/8" FRONT Dj TO ADJUST ATTACHMENT CLUTCH (See Fig. 29) The electric clutch should provide years of service. The clutch has a built-in brake that stops the pulley within 5 seconds. Eventually, the internal brake will wear so the mower blades will not stop as recommended. Adjustments should be made by authorized service technician. Make sure attachment clutch and ignition switches are in the "OFF" position. Adjust the three nylon locknuts until the space between clutch plate and rotor measures .012 inches at all three slot locations cut in side of brake plate. NOTE: After installing a new electric clutch, run tractor at full throttle, and engage and disengage electric clutch 10 cycles to wear in clutch plate. ROTOR CLUTCH PLATE FIG. 27 e • To raise rear of mower, loosen nut "E" on both rear .012" suspension arms. Screw both nuts "F" on both rear suspension arms an equal number of turns. • When distance "D" is 7/8" to 1-1/8" higher at rear than I front, retighten nuts "E". SLOT (3) I REAR SUSPENSION ARM NUT "E" REAR SUSPENSION TRUNNION LIFT BRACKET NYLON LOCKNUT (3) FIG. 29 BRAKE PLATE I iv NUT 4" FIG. 28 • Recheck side-to-side adjustment. IMPORTANT: WHENADJUSTINGREAR SUSPENSIONARMS, ALWAYS ADJUST BOTH EQUALLY SO MOWER WILL STAY LEVEL SIDE-TO-SIDE. 20