Replacing the Drive Belt - 6-Cylinder Engines

LX1053313-UN-09APR13

LX1045740-UN-26NOV10

LX1045741-UN-26NOV10

A - Bore (cam)

B - Bore (base plate)

C - Tensioner roll

D - Corrugated-head screws (6 pieces)

E - Drive belt

F - Fan

NOTE: On tractors with front PTO, the drive belt must be replaced by your John Deere™ dealer.

Pull the catch and lift the hood up.

CAUTION: Disconnect ground cable (—) from battery.

Use a square-section key to turn the tensioner roll (C) (see arrow) until holes (A) and (B) are in alignment. Insert a 5 mm (0.2 in.) dia. metal pin into the two bores that are in alignment and secure the tensioner roll.

Take the six screws (D) out of the fan.

Take drive belt (E) off over fan (F).

Install the drive belt according to belt routing and slacken drive belt tensioner again.

For tensioning, turn tensioner roll slightly to release metal pin and pull it from the holes. The drive belt tensioner returns to its tensioning position automatically.

IMPORTANT: When installing, always use new corrugated-head screws.

Put on fan (F) and tighten the new corrugated-head screws (D) to the following specification.

Item	Measurement	Specification
Attachment to fan	Torque	22 – 28 Nm 16 – 21 lb-ft

Routing of Drive Belt

LX1045748-UN-01DEC10

Drive Belt, Engine with Air Compressor

LX1045749-UN-01DEC10

Drive Belt, Engine without Air Compressor