Buhler 435, 485, 535 manual F4-16

4-43 Section 4 - Lubrication & Maintenance

Every 1500 Hours or Yearly

Operation 56

Change the Transmission Oil

(Synchromesh Transmission Only)

To drain the transmission oil, use the following procedure based on the type of transmission the tractor is equipped with..

Synchromesh Transmission - Operate the tractor a sufficient amount of time to warm up the transmission oil.. Remove the drain plug (1) from the transmission housing and allow the oil to drain into a pan..

Replace the drain plug and torque to 108 N..m (80 ft-lbs ± 5%).. Refill the transmission with new oil through the fill tube (2) to the proper level as indicated by the sight gauge (3)..

Operation 57

Clean the Transmission Suction Screen (Synchromesh Transmission Only)

The synchromesh transmission has a removable sump screen located under the suction tube that will require cleaning periodically.. To remove the suction screen, proceed as follows:

Drain the transmission oil (see operation 49)..

Loosen and remove the four cap screws (7) that mount the suction tube block (8) to the rear face of the transmission.. Push the tube out of the way to access the suction port..

Remove the suction screen (9) from the port and clean it in a suitable solvent.. Replace the screen into the suction port..

Remove the O-ring (10) from the front face of the suction tube block (8).. Check that it is in good condition before refitting into the suction tube block.. Replace the O-ring (10) if it is damaged.. Reinstall the suction tube block bolts (7) and torque to 75 N..m (55 ft-lbs)..

IMPORTANT: The 1407 Twindisc powershift transmission has a non-removable suction screen that does not require maintenance.

3
	2
1	F4-16

Synchromesh Transmission Only

8
	9
	10
7	7
	F4-71

Synchromesh Transmission Only

435/485/535