Walker MS (13 HP) Owner's Manual

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Contents

Walker MS (13 HP) Owner's Manual Manual pdf 71 page image

Maintenance Instructions ADJUSTMENTS67Steering Lever End Play Adjustment - Step 21. Position the FSC lever to the most FORWARDposition.2. Loosen the adjustment nut on each steering le-ver actuator until end play develops between thelever actuator and the adjustment nut (sliding ontransmission control rod).3. Hold the actuator back as shown (against thespring pressure) and tighten the nut to the pointwhere the end play is removed and then tightentwo additional turns.IMPORTANT: If the adjustment nut is too loose(end play exists), excessive loads are placed ontransmission internal control stops. If the adjust-ment nut is too tight (preferred condition), the max-imum forward travel speed is reduced.Neutral Function Adjustment - Step 31. Move the FSC lever to the NEUTRAL-PARK po-sition (rear travel limit).2. Start the engine (operate first at idle and thennormal operating speeds) and check for move-ment of the drive wheels.NOTE: If the engine will not start, check and ad-just the neutral safety switch (see item 4 below).Neutral Function Adjustment3. If drive wheels are moving, stop the engine andadjust the FSC neutral stop by adjusting theFSC actuator clevis (refer to Neutral Function Ad-justment photo for clevis location). If the drivewheels are moving backward, remove the cotterpin and clevis pin and screw the clevis forward.If the drive wheels are moving forward, screw theclevis backward. Restart the engine and checkfor wheel movement (several “trial and error” ad-justments may be required). At this point it maynot be possible to adjust both wheels station-ary since the differential adjustment has notbeen made. (This is covered by the StraightGround Travel Adjustment - Step 4.) In this case,the neutral adjustment should be made for onewheel stationary and the other moving forwardslightly.4. Check and adjust the neutral safety switch forclosure and function with the FSC in neutral (theengine will not start when the switch is open).Use the panel nuts on the switch body to adjustswitch position for closure in neutral. Refer to ad-justment description for Safety Switches in thissection.Straight Ground Travel Adjustment - Step 41. Sit in the seat, start the engine (operate at normalspeed), and with the FSC in the NEUTRAL-PARK position check for forward movement ofeither drive wheel (if either wheel moves back-ward, refer back to Neutral Function Adjustment- Step 3 and readjust). Tighten the steering le-ver adjustment nut on the side of the mowerwith the wheel moving forward until wheelmovement stops.2. Check for straight ground track on a level sur-face (with hands off the steering levers). Setthe FSC at several different speeds and observeif the mower moves in a straight line (use cementjoint or other line on ground for reference).NOTE: The final tracking adjustment is madewith the mower moving, since the adjustment isquite sensitive and is more easily “fine tuned”when moving.3. If travel is not straight, tighten the adjustmentnut that is on the same side of the mower asthe wheel that is moving too fast, e.g., the mow-er tracks to the right, indicating the LH wheel ismoving too fast, tighten the LH adjustment nut.CAUTIONNEVER attempt to disconnect any safetydevices or defeat the purpose of thesesafety devices.NeutralSafety SwitchFSC ActuatorClevis