Ashland 1200 TR - Manual (Page 28)

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HYDRAULIC SYSTEMS ARE PRECISION UNITS AND THEIR CONTINUED SMOOTH OPERATION
DEPENDS ON PROPER CARE. KEEP THEM CLEAN, CHANGE THE OIL FILTER AT ESTABLISHED
INTERVALS, AND FOLLOW PRESCRIBED MAINTENANCE.
PERIODIC PROCEDURES ARE AS FOLLOWS:
1. CHECK THE RESERVOIR OIL LEVEL AND ADD OIL AS REQUIRED. THE LEVEL MUST BE
MAINTAINED BETWEEN THE HIGH AND LOW MARKS ON THE SIGHT GAUGE.
2. CHECK THE OPERATING TEMPERATURE. 150 DEGREES F IS CONSIDERED MAXIMUM FOR
MOST INDUSTRIAL APPLICATIONS.
3. IF AN EXTERNAL SUCTION FILTER IS USED, CHECK FILTER INDICATOR FOR DIRTY ELE-
MENT EVERY 2 HOURS FOR FIRST 8 HOURS OF OPERATION, AND CLEAN OR REPLACE WHEN
NECESSARY. CHECK ONCE EVERY DAY FOR THE NEXT 5 DAYS OF OPERATION, AND CLEAN OR
REPLACE WHEN NECESSARY. CHECK PERIODICALLY AFTER THAT AT INTERVALS THAT WILL
PREVENT THE FILTER FROM BY-PASSING OR CAVITATING THE PUMPS.
4. CHECK RETURN FILTERS AS IN STEP 3. THESE ARE USUALLY FINER MESH FILTERS, HOW-
EVER, AND WILL REQUIRE MORE FREQUENT ELEMENT CHANGES OR CLEANSING THAN THE
SUCTION FILTER. ALWAYS CHANGE FILTERS WHEN OIL IS CHANGED.
5. AT LEAST ONCE A YEAR OR EVERY 4,000 OPERATING HOURS, THE RESERVOIR, PUMP,
SUCTION FILTER (IF ONE IS USED), AND AIR VENT FILTER SHOULD BE CLEANED. AT THIS
TIME CHECK ENTIRE SYSTEM FOR POSSIBLE FUTURE DIFFICULTIES. SOME APPLICATIONS
OR ENVIRONMENTAL CONDITIONS MAY DICTATE SUCH MAINTENANCE BE PERFORMED AT
MORE FREQUENT INTERVALS.
6. MAKE VISUAL CHECKS OF ALL HOSE AND TUBE CONNECTIONS. REGULAR CHECKING AND
TIGHTENING OF ALL HYDRAULIC CONNECTIONS WILL HELP TO ASSURE TROUBLE-FREE
OPERATION.
7. PERIODICALLY CHECK PRESSURE SETTING. THE SYSTEM WAS DESIGNED TO OPERATE AT
A SPECIFIC PRESSURE AND INCREASING THE PRESSURE ABOVE THAT WILL RESULT IN MOTOR
OVERLOAD. THE SYSTEM SHOULD BE OPERATED AT THE MINIMUM PRESSURE REQUIRED TO
DO THE INTENDED FUNCTION, AS THE LOWER THE SYSTEM PRESSURE, THE LONGER SYS-
TEM COMPONENTS CAN BE EXPECTED TO LAST.
8. CHECK PUMP/MOTOR COUPLING PERIODICALL Y FOR MISALIGNMENT. A FLEXIBLE COU-
PLING SHOULD ALWAYS BE USED AND SHAFTS ACCURATELY ALIGNED PARALLEL AND ANGU-
LARLY. CHECK SET-SCREWS IN COUPLINGS FOR LOOSENING, AND TIGHTEN AS REQUIRED.
9. THE RESERVOIR COVER SHOULD REMAIN TIGHTLY SEALED AT ALL TIMES, EXCEPT IN THE
CASE OF IN-TANK MAINTENANCE AND PERIODIC CHECKS FOR IN-TANK LEAKS. THIS IS TO
PREVENT ATMOSPHERIC CONTAMINATION FROM ENTERING THE SYSTEM.
M
AINTENANCE
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HECKLIST