Textron ST480, Owner'S Manual & Service Manual

Page: 36 / 128

OPERATION AND SERVICE INFORMATION
3-28
Read all of manual to become thoroughly familiar with this vehicle. Pay particular attention to all Notes, Cautions and Warnings
Note 1 - Change oil after first 8 hours, then after every 50 hours.
Note 2 - Change oil every 25 hours when operating under heavy load
or in high temperatures.
Note 3 - Clean more often under dusty conditions or when airborne
debris is present. Clean foam pre-cleaner first and replace paper car-
tridge if dirty. Replace either if showing signs of damage.
TIRE INSPECTION
Tire condition should be inspected per the Periodic Service Schedule
(Ref Fig. 22 on page 3-26). Inflation pressures should be checked
when the tires are cool. Be sure to install the valve dust cap after check-
ing or inflating.
SEAT PROP
The driver seat is equipped with a prop for use every time the seat is
raised. To use, lift seat up against steering wheel to allow the prop to
move over the center console flange (Ref Fig. 23 on page 3-29).
RACK END BALL JOINT ♦ Lubricate, use wheel bearing grease
REAR AXLE ✓ Check for unusual noise and loose or missing mounting hardware
DRIVE BELT
✓
Check for cracks, fraying and excessive wear
250-300 HOURS or YEARLY
(includes items listed in previous tables & the following)
FRONT WHEEL BEARINGS
✓ Check and adjust as required, see Technician’s Repair and Service Manual
REAR AXLE
✓
Check lubricant, add lubricant (SAE 30 oil) as required (Refer to page 3-34)
SERVICE BRAKES
♦
Clean, see Technician’s Repair and Service Manual
✓ Check brake shoe linings, see Technician’s Repair and Service Manual
FUEL FILTER ♦ Replace (Refer to page 3-29)
SPARK PLUGS ♦ Replace, gap new plugs (Ref. Capacities and Replacement Parts on page 3-40)(Refer to page 3-37)
MUFFLER/EXHAUST ✓ Check mounting hardware; check for leaks at head and muffler gaskets
VALVES
✓ Check valve clearance, refer to Briggs & Stratton
®
Repair Manual (P/N 272144) for VANGUARD™ V-Twin
Overhead Valve Engines
500 HOURS
REAR AXLE ▲ Replace lubricant
CYLINDER HEAD AND PISTONS
♦ Clean combustion chamber deposits, refer to Briggs & Stratton
®
Repair Manual (P/N 272144) for
VANGUARD™ V-Twin Overhead Valve Engines
Fig. 22 Periodic Service Schedule