Dawson HPH 1200, User Manual

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5.3.4 Every 1000 hours
Check the following:-
a. Engine fan hub.
b. Engine belt tensioner bearing.
c. Engine belt tension.
d. Adjust valve lash clearance on engine.
e. Condition of all wiring and tightness of electrical connectors.
f. Wear on hydraulic pump flexible coupling.
g. Condition of exhaust.
Change the following:-
h. System hydraulic fluid.
5.4 Maintenance procedures
NOTE: Before any of the following procedures are undertaken, the battery
isolator switch must be switched off.
a. Changing fuel/hydraulic oil inlet filler elements.
(i) Replacement element
(ii) Remove filter bowl
(iii) Remove and discard filter element (do not clean)
(iv) Wash bowl thoroughly
(v) Fit replacement element into bowl
(vi) Re-assemble filter
(vii) Prime hand pump
b. Changing hydraulic pressure filter element.
(i) Replacement element
(ii) Remove filter bowl
(iii) Remove and discard filter element (do not clean)
(iv) Wash bowl thoroughly
(v) Fit replacement element onto spigot
(vi) Fill filter bowl with clean hydraulic oil
(vii) Replace bowl O' ring if necessary
(viii) Re-assemble filter