Husqvarna GT48XLSi Owners Manual - Page 17

MAINTENANCE TRACTOR Always observe safety rules when performing any maintenance. BLADE CARE For best results mower blades must be kept sharp. Replace bent or damaged blades. BRAKE OPERATION If tractor requires more than five (5) feet (1,5 m) to stop at highest speed in highest gear on a level, dry concrete or paved surface, then brake must be checked and adjusted. (See "TO CHECK BRAKE" in the Service and Adjustments section of this manual.) TIRES • Maintain proper air pressure in all tires. (See the sides of tires for proper PSI.) • Keep tires free of gasoline, oil, or insect control chemicals which can harm rubber. • Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage. NOTE: To seal tire punctures and prevent flat tires due to slow leaks, tire sealant may be purchased from your local parts dealer. Tire sealant also prevents tire dry rot and corrosion. OPERATOR PRESENCE SYSTEM AND REVERSE OPERATION SYSTEM (ROS) (See Fig. 21) CAUTION: Use only a replacement blade approved by the manufacturer of your tractor. Using a blade not approved by the manufacturer of your tractor is hazardous, could damage your tractor and void your warranty. BLADE REMOVAL (See Fig. 22) • Raise mower to highest position to allow access to blades. NOTE: Protect your hands with gloves and/or wrap blade with heavy cloth. • Remove blade bolt by turning counterclockwise. • Install new or resharpened blade with stamped "THIS SIDE UP" facing deck and mandrel assembly. IMPORTANT: To ensure proper assembly, center hole in blade must align with star on mandrel assembly. • Install and tighten blade bolt securely (45-55 Ft. Lbs./ 62-75 Nm). IMPORTANT: SPECIAL BLADE BOLT IS HEAT TREATED. Ensure operator presence and reverse operation systems are working properly. If your tractor does not function as described, repair the problem immediately. BLADE • The engine should not start unless the parking brake is engaged, and the attachment clutch control is in the disengaged position. CHECK OPERATOR PRESENCE SYSTEM • While the engine is running, any attempt by the operator to leave the seat without first setting the parking brake should shut off the engine. • With the engine running, the parking brake engaged, and the attachment clutch engaged, any attempt by the operator to leave the seat should shut off the attachment clutch. CENTER HOLE BLADE BOLT (SPECIAL) MANDREL ASSEMBLY STAR BATTERY Fig. 22 Your tractor has a battery charging system which is sufficient for normal use. However, periodic charging of the battery with an automotive charger will extend its life. • The attachment clutch should never operate unless the operator is in the seat. • Keep battery and terminals clean. • Keep battery bolts tight. CHECK REVERSE OPERATION (ROS) SYSTEM • With the engine running, the SmartSwitch Ignition (SSI) button (F) solid green, and the attachment clutch engaged any attempt by the operator to shift in reverse will disengage the attachment clutch. • With the engine running, the SmartSwitch Ignition (SSI) button (F) solid green, and the Reverse Operation System (ROS) button (G) lit, any attempt by the operator to shift in reverse should NOT disengage the attachment clutch. • Keep small vent holes open. • Recharge at 6-10 amperes for 1 hour. NOTE: The original equipment battery on your tractor is maintenance free. Do not attempt to open or remove caps or covers. Adding or checking level of electrolyte is not necessary. TO CLEAN BATTERY AND TERMINALS Corrosion and dirt on the battery and terminals can cause the battery to "leak" power. • Remove terminal guard. F • Disconnect BLACK battery cable first then RED battery cable and remove battery from tractor. • Rinse the battery with plain water and dry. • Clean terminals and battery cable ends with wire brush until bright. G • Coat terminals with grease or petroleum jelly. Fig. 21 • Reinstall battery. (See "REPLACING BATTERY" in the Service and Adjustments section of this manual.) 17