Buhler 485, 535, 435 manual F3-96

3-88

Section 3 - Operation

Hydraulic Operation - Electro-hydraulic

Hydraulic Quick Couplers

Each remote valve section has a pair of hydraulic quick couplers located at the rear of the tractor.. These are color-coded with the hydraulic control levers in the cab.. The couplers are self-sealing and leverless and require no tools for connecting and disconnecting hoses.. The couplers also permit hoses to detach themselves from the coupler should an implement become disconnected from the tractor..

The left section couplers (2) are identified by an “extend/raise” symbol on the couplers dust cover and the right section (3) are identified by a “retract/lower” symbol on the couplers dust cover..

Excess oil drain hoses (4) are attached to each coupler to drain away oil released during connection and separation of the couplers..

The couplers will accept standard (1/2") SAE or ISO tips.. The couplers can be connected or disconnected under pressure..

5	2
	3
	4
	F3-96

Coupler Connection

1.To connect couplers, wipe the outside of the coupler and the tip of the implement to remove any dust and minimize contamination..

2.Swing the dust cover (5) aside and insert the hose into the coupler, making sure the hose is properly seated..

3.Actuate the remote valve to supply hydraulic pressure which will complete the hydraulic coupling of the tractor and implement..

To ease removal and installation of the couplers, relieve the pressure in the system.. Securely support the implement.. Make sure no one will be injured by moving equipment when relieving pressure in the system.. Move the control switch to the float position with the engine running.. This will relieve the pressure.. Turn the engine off with the control switch still in float.. After the engine is shut down return the control switch to the neutral position.. The couplers can now be connected or disconnected with minimal pressure and effort..

435/485/535