Dawson HPH 1200, Руководство пользователя

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g. Pipework.
(i) For details of hose assemblies see hydraulic schematic drawing Appendix
7.4.1
(ii) In the event of steel pipe failure, 25mm 3 series fittings should be utilised in
conjunction with 25mm bore x 3mm wall thickness tube
(iii) Welded pipe ends are currently utilised and should it become necessary to
disturb these fittings a replacement 'O' ring should be used
h. Changing system hydraulic fluid
(i) Change hydraulic fluid
(ii) Remove cleanout cover and clean reservoir
(iii) Replace fuel inlet and hydraulic fluid inlet filter elements
(iv) Replace hydraulic pressure line filter element
(v) Replace hydraulic return line filter element
(vi) Blow through cooler matrix to clear
(vii) Replace solid pipe fitting 'O' rings as necessary
(viii) Replace tank cover gasket
(ix) Check all electrical connections for tightness
(x) Check drive coupling for wear and replace or adjust if necessary
5.5 Setting procedures
a. Re-setting pressure
The pressure regulating adjuster is situated on the main control valve assembly.
To adjust:
(i) Loosen the lock nut and wind the centre spigot counter clockwise to reduce pressure
(ii) Press the test button on the control panel to load the system
(iii) Turn the centre spigot clockwise to raise the system pressure
(iv) When the required pressure has been achieved (max 240 bar) tighten the lock nut
NOTE:
Should the required pressure be exceeded, wind the adjuster back
and increase again. Never wind the pressure downwards to set
b. Engine gauges replacement.
(i) There is a resistor fitted to all gauge power lines. This must be replaced after
maintenance to prevent damage to the gauges.