Key elements of the drive system are as follows: Variable-speed drive The variable-speed drive consists of two clutches connected by a drive belt:. Drive clutch is attached to and rotated by the engine. Driven clutch is attached to and drives the transaxle. Features include:. Infinite selection of speeds (0 km/h to 32 km/h 0 mph to 20 mph). No shifting necessary as operator increases speed.

• John Deere Gator Th 6x4 Diesel Owners Manual

Adjusts speed to the load to avoid bogging down when going up a hill or through challenging conditions because the wrong gear was selected. Here is how the variable-speed drive works:. As the engine speed increases, the spring-loaded drive clutch is closed by weights being forced out by centrifugal force. As the drive clutch closes, the belt rides up to the largest diameter of the drive clutch and forces open the driven clutch.

With the belt running in the smallest diameter of the driven clutch, the speed being transferred to the transaxle is increased. The driven clutch is designed to sense varying loads (inclines, mud, etc.) and constantly adjusts the drive speed upward or downward, so the engine rpm remains constant at constant throttle position. Transaxle The transaxle is fully enclosed and runs in oil for reliability.

Helical gears are used for quiet operation. The differential design reduces scuffing of the turf during turns because the inside wheels turn slower than the outside wheels (vehicles that have a solid axle shaft must skid the inside wheel when making a turn). Traction assist (differential lock) is built into the transaxle:.

Allows locking the rear drive wheels together. Provides increased traction in tough spots The neutral start safety interlock is provided for the engine ignition system. Bolt-on cast-aluminum rear axle housings provide an extremely strong supporting structure. Large, sealed bearings are located inside the housing for better protection.

John Deere Gator Th 6x4 Diesel Owners Manual

Forged-splined shaft for increased torsional strength. The engine offers the following performance and reliability features:. Overhead valve design for greater efficiency and fuel economy. Full-pressure lubrication system with replaceable oil filter. Dry replaceable single-element air cleaner with remote intake. Indirect injection diesel with glow plugs insures fast starts in cold temperatures.

Spark arresting muffler (optional). Dual radiator system for additional cooling capacity. Deaeration tank decreases service time and ensures coolant will be free from trapped air. 18.9 L (5 U.S. gal.) fuel tank capacity Dual radiator system. All models feature a park brake indicator light, hour-meter, and tank-mounted fuel gauge as standard equipment. Traction assist (differential lock) is hand operated and conveniently located between the operator and passenger seats.

Traction assist indicator light (Gator TH 6X4 only). Glove box is located in the dash to provide a convenient storage area for small tools and the operator's manual.

Grab bar is provided for the passenger. Center-mounted key switch. Additional storage is provided between the seats.