SAME SILVER 100.6 - Checking the Lift Mechanism; Testing the Operating Pressure; Removal of the Lift Control Valve

Fig. 16 - Adjustament diagram.
Checking the lifting system
— Check both external and internal lever splines for cracking or evident wear; replace as necessary.
— Make sure the lifting piston and the cylinder diameters are within acceptable wear limits comparing the related
specifications tables.
— Examine the lifting arm shaft bushings for scoring or excessive wear.
— Examine also the lifting arm to hydraulic cylinder connecting pin bushings for wear and firm installation in their seats
on the arms.
— Measure the cylinder inside control rod and the cylinder-mounted bushing diameters and compare with maximum
wear limit specifications as given in the related table.
— Check also the lifting shaft splines for excessive wear and the ground surfaces contacting the bearing bushings for
damage.
NOTE: Whenever the hydraulic lifting cylinders are disassembled gaskets should be replaced.
Checking the operating pressure of the lift system
The operating pressure, controlled by the valve associated with the auxiliary spool valves, is checked by connecting
gauge p/n 5.9030.513.0 to one of the valve work ports and proceeding as follows:
Start the engine, apply the parking brake in the interests of safety, and operate the directional control valve, reading
the pressure setting of the safety valve. This should be 180 bar; if the setting is found not to be correct, readjust by
means of the setscrew (Refer also to chapter on "auxiliary spool valves").
Removing the directional control valve from the lift housing
The following operations do not require the lift to be removed from the tractor:
1 - Remove the cover of the lift housing.
2 - Remove the shock valve from the forward end of the control valve; this done, remove the relative mounting as well.
3 - Using a screwdriver, release the spring from the pin at the rear end of the valve, then unscrew the pin itself and
remove.
4 - Addressing the rear end of the valve, release the spring of the draft control levers with a screwdriver; remove the
spring.
5 - Unseat the circlips, then remove the levers and rods of the valve control mechanism.
The steps thus far can be performed working both from inside and from outside the lift housing.
6 - Unscrew the valve fixing bolt located at the front end of the assembly.
7 - Using a wrench of appropriate shape, undo the second bolt located under the lift arms cross shaft;
(this bolt must be unscrewed completely, even though it cannot be removed before the valve assembly is
distanced from the lift housing).
8 - Lift the control valve assembly clear.
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vehicle
rear hydraulic power-lift
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