Advanced maintenance
Primer pump reversing valve
2018-9015-003
03-2015
11.5
Primer pump reversing valve
11.5.1 Calibration
Note!
Before attempting to calibrate the reversing valve, manually slide the
valve spool in order to remove any particle that could be stuck inside.
Refer to the following steps.
Step 1: Valve spool
● Connect the hydraulic circuit of the primer pump to the tractor outlets;
● Activate the tractor hydraulic control;
● Close the ball valve (1) to activate the primer pump;
● Push the valve spool firmly by inserting a nail (2) in the opening (3) of the
reversing valve. Repeat this step on the opposite side of the valve. Push the
valve spool several times on both sides;
● Open ball valve (1) and deactivate tractor hydraulic control.
4
7
5
1
6
8
3
2
7
5
4
