SECTION 10
RECIRCULATION SYSTEM
Jan 2003
p. 10-3
05130497
10.4 Maintenance Overview
During normal operating condition, the oil will be maintained at the
correct operating temperature.
In order to get the best value from the hydraulic system (including the
recirculation system) one should change the filter element when it
indicates that it is time. The hydraulic oil should be changed after 2,000
hours or 1 year of service (whichever comes first) or whenever a fluid
sample indicates that it is contaminated and beyond being fixed by
simply operating the filter.
Parts: Hydraulic Oil:
General service, use Mobil #DTE Heavy Medium, No.
021029
Food service, use AMOCO #FG68EL
Oil with additives such as zinc diophosphate for
antiwear are not recommended because of reaction
with water.
Tools: Open End Wrench, 1-1/4”
Rags
Container to collect oil
Oil filter/ transfer pump with ¾” hoses. Inlet hose
with ½” male pipe connector, and pump discharge
hose with ¾” female JIC connector.
Oil Filter
Replace filter element when the pressure reading is 1.4 bar (20psi) above
normal when at operating temperature. Maximum normal pressure is
1.7 bar (25psi).
Components: (1) Oil Filter Head
(2) Element
(3) Pressure Gage
Parts: Element
Tools: Filter Wrench
Rags
Container to collect oil spills
Replace Oil Filter
1. Unscrew element from filter head with the filter wrench.
2. Oil gasket of new element.
3. Screw new element on head.
4. Start pump and check for leaks.
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