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6-5
T
P
2A
2B
3A
3B
4A
4B
1A
9
8
6
5
2
M
LS
EF
CF
P
1
10
7
Steering system
Return line
11
TILT
BACKWARD
Load
check
valve
22B7HS05
WHEN THE TILT CONTROL LEVER IS IN THE BACKWARD POSITION
4)
When the tilt control lever is pulled back, the spool on the second block is moved to tilt backward
position.
The oil from hydraulic gear pump(1) flows into main control valve(2) and then goes to the small
chamber of tilt cylinder(5) by pushing the load check valve of spool.
The oil at the large chamber of tilt cylinder(5) returns to hydraulic tank(11) at the same time.
When this happens, the mast tilt backward.