RXB PLUS ROTARY SCREW COMPRESSOR UNITS S70-101 IOM
Page 39
RECOMMENDED MAINTENANCE PROGRAM
In order to obtain maximum compressor unit performance
and ensure reliable operation, a regular maintenance pro-
gram should be followed.
The compressor unit should be checked daily for leaks, ab-
normal vibration, noise, and proper operation. A daily log
should also be maintained. There should be a continued
monitoring of oil quality and oil analysis testing. In addition,
an analysis of the unit’s vibration should be made periodi-
cally.
VIBRATION ANALYSIS
Periodic vibration analysis can be useful in detecting bear-
ing wear and other mechanical failures. If vibration analysis
is used as a part of your preventive maintenance program,
take the following guidelines into consideration:
1. Always take the vibration reading from exactly the same
places and at exactly the same percentage of load.
2. Use vibration readings taken from the new unit at start-up
as the base line reference.
3. Evaluate vibration readings carefully as the instrument
range and function used can vary. Findings can be easily
misinterpreted.
4. Vibration readings can be influenced by other equipment
operating in the vicinity or connected to the same piping as
the unit.
OIL QUALITY and ANALYSIS
High quality refrigeration oil is necessary to ensure compres-
sor longevity and reliability. Oil quality will rapidly deterio-
rate in refrigeration systems containing moisture and air or
other contaminants. In order to ensure the quality of the
refrigeration oil in the compressor unit, follow these
recommendations:
1. Only use Frick refrigeration oil as recommended by Frick
Company for your application.
2. Participate in a regular, periodic, oil analysis program to
help maintain oil and system integrity.
MOTOR BEARINGS
Follow the motor manufacturer’s maintenance recommen-
dations.
Lubricate the motor bearings prop-
erly before start-up. Maintain sub-
sequent lubrication as recom-
mended by the motor manufacturer.
OPERATING LOG: The use of an operating log, as shown on the inside back cover, permits thorough analysis of the operation
of a refrigeration system by those responsible for its maintenance and servicing. Continual recording of gauge pressures, tem-
peratures, and other pertinent information enables the observer and serviceman to be constantly familiar with the operation of
the system and to recognize immediately any deviations from normal operating conditions. It is recommended that readings be
taken at least every four hours.
MAINTENANCE
THE FACTORY INSTALLED, RECOMMENDED LUBRICANT IS LISTED ON THE MOTOR DATA PLATE. THE FOLLOWING PRODUCTS ARE DEEMED
SUITABLE LUBRICANTS UNDER NORMAL SERVICE CONDITIONS BUT MAY NOT BE CHEMICALLY COMPATIBLE OR INTERCHANGEABLE ONE
EXXON CORP. - UNIREX#2
MOBIL OIL CO. - MOBILUX#2
INTRODUCING ALTERNATES - WHEN DOUBT EXISTS, PURGE THE BEARINGS AS DESCRIBED IN THE INSTRUCTION MANUAL.
TO THE OTHER OR CORRECT FOR ALL AMBIENT OR SERVICE CONDITIONS. FOLLOW ALL MANUFACTURER'S GUIDELINES WHEN
CHEVRON OIL CO. - SRI#2
EXXON CORP. - POLYREX
SHELL OIL CO. - DOLIUM R
LUBRICATION SCHEDULE / INSTRUCTIONS
ENVIRONMENTAL EXTREME) = 1/3 OF THE ABOVE INTERVALS.
* LUBRICATION SCHEDULE FOR SEVERE SERVICE (VIBRATION, SHOCK AND/OR
** LUBRICATION SCHEDULE FOR ROLLER BEARINGS = 1/3 OF THE ABOVE INTERVALS.
3600
1200
360-440
5000-5800
1800
5000-5800
400-440
360
360-5800
SYNC.
RPM
FRAME
SERIES
150 DAYS (1200 HRS) 50 DAYS (1200 HRS)
390 DAYS (3120 HRS)
270 DAYS (2160 HRS)
390 DAYS (3120 HRS)
210 DAYS (1680 HRS)
270 DAYS (2160 HRS)
90 DAYS (2160 HRS)
130 DAYS (3120 HRS)
70 DAYS (1680 HRS)
90 DAYS (2160 HRS)
130 DAYS (3120 HRS)
SERVICE CYCLE* - BALL BEARING**
8 HR/DAY OPERATION 24 HR/DAY OPERATION
• REMOVE THE PIPE PLUG FROM THE
VENTING PORT OPPOSITE THE GREASE
APPLY 2 OZS. (60 GRAMS) OF GREASE
• USING A LOW PRESSURE GREASE GUN
AT EACH FITTING. DO NOT OVER GREASE.
15 MINUTES AND UNTIL ANY GREASE FLOW
THE MOTOR FOR A MINIMUM OF
• WITH THE VENT PORTS OPEN, OPERATE
HAS CEASED AT THE VENTING PORTS.
• REPLACE THE VENT PIPE PLUGS.
COVERS THAT MAY HAVE BEEN REMOVED
• REPLACE ANY AND ALL GUARDS AND
• REMOVE POWER.
TO ACCESS THE MOTOR.
FITTING.
• LUBRICATE BEARINGS WITH POWER IN
• CLEAR AND CLEAN THE GREASE FITTINGS
AND SURROUNDING AREA.
THE OFF CONDITION.
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