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 TM 55-1905-223-24-15
(2) Disconnect the relief valve hydraulic line (14) from coupling (3).
(3) Remove dial pressure gauge (1).
(4) Loosen retaining nut (16).
(5) Unscrew pipe (17) from elbow (19) and remove pipe.
(6) Unscrew elbow (19) from head (2) and remove elbow.
(7) Remove head (2) from coupling (3).
c. Remove Relief Valve.
(1) Disconnect the relief valve hydraulic line (14) from relief valve (13).
(2) Unscrew the relief valve (13) from the control valve (4).
(3) Remove relief valve.
d. Remove Suction Strainer.
(1) Remove suction strainer (12) from coupler (11).
(2) Check strainer for oil sludge deposits or other contamination. Clean as required using cleaning solvent.
e. Remove Reservoir Heater.
(1) Remove the thermostat cover from the heater assembly.
(2) Disconnect and tag electrical power connections to reservoir heater (15).
(3) Remove reservoir heater by turning the steel screw connector counter-clockwise (see detail).
(4) Check heater elements for oil sludge or other contamination. Clean as required using cleaning solvent.
f. Remove Breather.
(1) Remove breather.
(2) Disconnect safety chain securing the breather (5).
(3) Replace breather if dirty.
(4) Clean the breather thoroughly wiping with clean wiping rags.
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