Walker MC (18 HP) Owner's Manual

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Contents

Walker MC (18 HP) Owner's Manual Manual pdf 80 page image

Maintenance Instructions ADJUSTMENTS76Straight Ground Travel Adjustment - Step 41. Sit in the seat, start the engine (operate at nor-mal speed), 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 Adjust-ment - Step 3 and readjust). Tighten thesteering lever adjustment nut on the side ofthe mower with the wheel moving forwarduntil wheel movement 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 ob-serve if the mower moves in a straight line (usecement joint or other line on the ground for ref-erence).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., themower tracks to the right, indicating the LH wheelis moving too fast, tighten the LH adjustment nut.Straight Ground Travel AdjustmentForward Speed Control Friction LockThe FSC friction lock is adjusted to hold the select-ed forward speed when the steering levers aremoved and yet the friction is not too heavy to makemoving the control difficult (too much friction).The procedure for checking and adjusting the FSCfriction lock is as follows:Forward Speed Control Friction Lock1. Place the FSC in the full FORWARD positionand pull both steering levers back; the FSC le-ver should not move. If the FSC lever movesback when the steering levers are pulled back,the friction needs to be increased.2. With the steering levers held back, move theFSC lever back from the FORWARD position.With a proper amount of friction adjusted, theFSC lever should move back with a slightamount of resistance (friction). If the FSC levermovement is “stiff”, the friction needs to be de-creased.3. The FSC friction is increased or decreased bytightening or loosening the friction adjust-ment nut. Loosen or tighten the nut and checkthe control function until conditions of bothsteps 1 and 2 (above) are met.End Wrench onAdjustment NutFriction WasherFrictionAdjustment NutFSC Actuator