Dixon ZTR421 - Manual (Page 7)

ALWAYS DISENGAGE BLADE OPERATION BEFORE
DISMOUNTING.
9. Parking Brake:
Parking brake is on right hand side of floor area and is
engaged by pushing full forward with foot. To disengage,
pull lever back toward operator by hand. In emergency
situations, brake may be used in conjunction with the
natural braking of the transaxle by applying pressure with
foot. Always set parking brake before dismounting. Be
sure that parking brake is disengaged before moving.
MAINTENANCE
PRE-STARTING INSTRUCTIONS
1. Fill fuel tank with a good grade of regular gasoline. Do not
mix oil with gasoline.
2. Attach the spark plug wire to the spark plug.
3. With mower on a level surface, fill the crankcase with a
good grade of multi-purpose 10-30 oil as outlined in the
engine instruction manual.
4. On model equipped with a battery be sure the battery is
filled to proper fluid level with electrolite solution. After
initial filling, level may be retained with distilled water.
CAUTION:
5. During initial "Break In" period, the oil level should be
checked often.
6. Check oil level every five operating hours or each time
mower is used.
7. Change oil every 25 operating hours or sooner if equipment
is operated in extremely dusty conditions.
BELT ADJUSTMENT
Main Drive Belt - This belt should be kept taut to lengthen belt
life and prevent loss of power. To tension belt, loosen 4 bolts
which hold the engine to the mount and the lock nut on the
tension bolt at the rear of the machine. Tighten tension bolt until
belt is taut and retighten the 4 bolts holding engine and tighten
tension bolt lock nut.
MOWER DRIVE BELT
Belt tension for the mower drive belt is adjusted by turning the
turnbuckle to provide more forward movement of the engaging
idler.
REPLACE BELTS WHEN ADJUSTMENT CAN NO LONGER
BE MADE SATISFACTORILY OR IF BELTS BECOME
WORN.