Walker T23 Operator's Manual

Also see for T23: Operator's Manual Safety, Assembly, Operating, and Maintenance Instructions Operator's manual Operator's manual Operator's manual

Operating Instructions46● Check the blower wheel for bent blades andexcessive clearance between the blade tip and theblower housing. A clearance greater than1/8 in. (3 mm) will cause a significant loss of blowerperformance.● Check the blower discharge chute into the grasscatcher for smoothness and freedom from ob-struction.● Check the elbow inside the grass catcher for abuildup of material in the radius of the elbow. Incertain conditions (damp/dirty grass) a considerable“clump” of material can accumulate at this point,greatly restricting material and airflow.● Check that the openings in the removable airexhaust screen in the grass catcher are notplugged. If the screen is clogged, refer to Cleaningthe GHS Exhaust Screen in this section.NOTE: An optional exhaust screen with largerholes (3/4”) is available for use when mowing in wetgrass; the screen provides less airflow restrictionand more clog resistance (use standard screen indry conditions to avoid excessive material blowingout of the catcher).Remember, anything that restricts airflow or mate-rial flow along the entire path from the mower deckto the grass catcher can cause clogging.Using the Tilt-Up DeckRefer to CLEANING of Grass Buildup in MowerDeck Housing in Maintenance Instructions.Using the GHS CatcherPowerfil ®The GHS catcher has an oscillating grass deliveryspout (POWERFIL®) which is designed to spreadgrass clippings throughout the interior of the grasscatcher (even when mowing wet, heavy grass). Theoscillating action may be checked by turning theignition switch to the ON (RUN) position andmoving the blade clutch to the ENGAGED posi-tion. The spout should oscillate approximately 35cycles per minute.NOTE: If the grass spout fails to oscillate, the clutchswitch should be checked for function (the switchclosure is adjustable).“Full” Signal HornThe GHS catcher has a “full” signal horn to alertthe operator to dump the catcher when it is full (toprevent overfilling and clogging). The “full” signalhorn is activated by a vane switch (Grass-Pak®switch) mounted on the grass delivery spout. Oscil-lating action of the spout triggers the vane switch asgrass begins to fill in around the spout when thecatcher is almost full.The “full” signal function may be checked by turningthe ignition switch ON (RUN), engaging the bladeclutch (engine not running), opening the catcherback door, and triggering the Grass-Pak® vane byhand as it oscillates. The horn should sound as theswitch is moved in one direction.WARNINGDO NOT test the Powerfil® oscillation orGrass-Pak® switch with the engine run-ning. Projectiles may be thrown out of thegrass delivery spout, and COULD causeserious injury.The “full” signal horn is designed to operate (sound)when the grass catcher is almost full. The timingof the signal is adjustable by changing the positionof the vane on the Grass-Pak® switch. If the signalis coming on too soon (catcher not completely full)or too late (grass clogging in catcher spout anddelivery chute), refer to ADJUSTMENTS for GHS“Full” Signal Horn Adjustment in Maintenance Instructions.NOTE: The horn signal should be adjusted tosound BEFORE the catcher is completely full togive the operator time to react and stop mowing. Anindication the horn signal is coming on too late (de-layed too much) is if grass clippings are falling out ofthe grass catcher delivery chute when the catcher isdumped.