Hercules LT0892, Инструкция по эксплуатации

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5.5 The safety valve does not seal completely
The safety valve (W) will open when the load reaches the 20% of the
capacity, the safety valve must seal completely in capacity, no
leakage. (This has been set in factory, do not regulate it under
general conditions.)
With a certain load on the forks, press the pump rod by the control
lever quickly so that oil quickly flows over the hydraulic valve. If the
forks do not lift or tilt, it is because that the overflow valve does not
close (not seal), regulate the pressure of the spring of the overflow
valve. If this does not solve the problem, the valve insert must be
replaced by new ones or the whole safety assembly.
5.6 Bleeding the hydraulic system
The pump will not operate if there is air in the hydraulic system.
The system can be bled as follows:
1) Loosen the screw (1112) of the filling hole in external cylinder.
2) With a certain load on the forks (about 200kg), pump the control
lever to make the forks up to the top, then open the lowering valve
quickly to make the forks down to the bottom.
3) Open the lowering valve, keep on pumping the control lever many
times, then lift fork again, lower again until expel the air.
5.7 Adjustments of the three working positions of the handle
5.7.1 Three working positions of the handle
1) Lift position (the position of fork lifting): The handle is in the bottom
position
.
2) Normal position (Neither lift nor lower position): The handle is in
the neutral normal position
.
3) Lower position (The position of fork lowering): The handle is in
the upper position .
5.7.2 Adjustment of normal position
1) Place the handle bar in normal position .
2) Press the control lever to the lowest position.
3) Regulate the nut (H1104) on the guiding rod (H5906) of control
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