User Manual
Table Of Contents
- Hydraulic System Variant 260/280
- Contents
- Chapter 1 Overall hydraulic system circuit diagram
- Chapter 2 Function
- Chapter 3 Valve components
- 3.1 Main valve block – without active hydraulic system Hydraulic circuit diagram
- 3.2 Baling chamber service shut-off valve – without active hydraulic system
- 3.3 Lock-up valve unit (734)
- 3.4 Pressure relief valve (754), Baling pressure build-up solenoid valve (Y50) without active hydraulic system
- 3.5 Flow controllers (755, 756)
- 3.6 Rotor cut-out clutch Shut-off tap (627)
- 3.7 ROTO CUT knife support IN/OUT solenoid valve (Y54/Y55)
- 3.8 Main valve block – with active hydraulic system
- Index
- 0299 256.1
TIC VARIANT 260/280 Hydraulic System
11/04 var-h 39
Key to diagram:
734-1 Lock-up valve unit non-return valve
734-2 Lock-up valve unit non-return valve
C Port
D Port
K Piston
P Port
T Port
Description of function:
Lock-up valve unit
non-return valve (734-1)
Blocks port (D) = to the rod spaces of tailgate cylinders (318-1 and 318-2).
Lock-up valve unit
non-return valve (734-2)
Blocks port (C) = to the rotor cut-out clutch (338) and the drive clutch
(370).
Port C Pressurized oil is applied here in case of:
- rotor cut-out clutch (338) and drive clutch (370) are to be shut down
- tailgate is to be opened
Port D To the rod spaces of tailgate cylinders (318-1 and 318-2). Pressurized oil
when tailgate is to be closed.
Piston K Is moved to the left by pressure build-up in port (P). This opens the lock-up
valve unit non-return valve (734-1).
Port P Oil supply from tractor. Pressurized oil when tailgate is to be opened.
Port T To tractor. Pressurized oil when tailgate is to be closed.