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Derby TW20 - Regular Maintenance; Maintenance Schedule; Checking Tire Pressures

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12
Regular
Maintenance
MAINTENANCE SCHEDULE AND PROCEDURES
The following schedule should be followed for normal care of your rider and mower. You will need to keep a record of
your operating time. Determining operating time is easily accomplished by observing the elapsed time recorded by
the hour meter.
SSeeee BBeeffoorree BBeeffoorree EEvveerryy EEvveerryy EEvveerryy SSpprriinngg
SSAAFFEETTYY IITTEEMMSS PPaaggee FFiirrsstt UUssee EEaacchh UUssee 55 HHoouurrss 2255 HHoouurrss 110000 HHoouurrss && FFaallll
Check Safety Interlock System 7 X X
Check Rider Brakes 19 X X
Check Mower Blade Stopping Time 22 X X
SSeeee BBeeffoorree BBeeffoorree EEvveerryy EEvveerryy EEvveerryy SSpprriinngg
NNOORRMMAALL CCAARREE IITTEEMMSS PPaaggee FFiirrsstt UUssee EEaacchh UUssee 55 HHoouurrss 2255 HHoouurrss 110000 HHoouurrss && FFaallll
Check Rider/Mower for loose hardware XX
Check Engine Oil Level 13* X X X X
Check Engine Air Filter 13* X ***X
Change Engine Oil & Filter ** 13* ***X Every 50 Hours ***X
Lubricate Rider & Mower 14 ***X
Check Tire Pressures 12 X ***X
Check Hydraulic Fluid 13 X ***X
Check Fuel Filter 13 X
Clean Battery & Cables 14 X
Clean & Sharpen Mower Blades 15 X
Inspect Spark Plug 13* X
Check Battery Fluid Level 14 X
Check Battery Drain Hose Assembly ---- X
Inspect for Worn or Damaged Parts ---- X
Clean Mower Deck ---- X X
Clean Mower Chassis ---- X X
* See the engine manufacturer's owner's manual.
** Change original engine oil after first 5 hours of operation.
*** More often in hot (over 85° F: 30° C) weather or dusty operating conditions.
CHECK TIRE PRESSURES
Tire Pressure should be checked periodically, and main-
tained at the levels shown in the chart. Note that these
pressures may differ slightly from the Max Inflation
stamped on the side-wall of the tires. The pressures
shown provide proper traction, improve cut quality, and
extend tire life.
Tire Pressure
Caster 25 psi
Drive 15 psi
Steering 25 psi
Figure 5. Checking Tire Pressure

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