York Turbomaster M 255, Инструкция по установке, эксплуатации и обслуживанию

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FORM 220.11-NM2 (602)
33
YORK INTERNATIONAL
HOW TO IDENTIFY PARTS
Figure 4B is a cutaway sectional view of a two stage
Centrifugal Compressor. The parts are identified by
number and are described in the accompanying parts
list. Table 4 is provided for reference only. To order
parts for your YORK compressor refer to the part num-
bers in the installation drawings for your specific unit.
Always refer to the compressor serial number when
inquiring about parts for a multi-stage compressor.
ROUTINE MAINTENANCE INSPECTIONS
Refer to Table 8 for the minimum recommended main-
tenance actions and intervals for YORK Multistage Cen-
trifugal Compressors. Many potential compressor diffi-
culties may be avoided by following a regular Inspec-
tion and Maintenance program.
PREVENTATIVE MAINTENANCE CHECK
Before disassembling the compressor, check with the
unit operator. Review the cause of the current shutdown
and the history of previous shutdowns. Inspect the log
sheets and other records to determine if proper preven-
tative maintenance has been performed in accordance
with Table 8.
Historical information in the log sheets
may indicate possible causes of unit shutdown such as;
* Reserved for any special site determined requirements.
^ This procedure must be performed at the specified time interval by an Industry Certified Technician who has been trained and qualified to work
on this type of YORK equipment. A record of the procedure being carried out must be maintained on file by the equipment owner should proof of
adequate maintenance be required at a later date for warranty validation purposes. This procedure must be performed more frequently if
refrigerant losses exceed 10% of system charge.
4
TABLE 8 – MAINTENANCE REQUIREMENTS FOR YORK MULTISTAGE CENTRIFUGAL COMPRESSORS
PROCEDURE
DAILY WEEKLY MONTHLY QUARTERLY SEMI-ANNUALLY YEARLY
EVERY * HOURS
24 HRS. 160 HRS. 1000 HRS. 3000 HRS. 3000 HRS. 6000 HRS.
Check oil level – record any additions / removal X
Check refrigerant charge X
Check and repair leaks ^ X
Check vibration levels X
Check alignment / couplings X
Perform analysis on compressor lube oil ^ X
Replace oil and filters X
Record / evaluate system pressures / temperatures X
Test / calibrate all safety controls^ and gauges X
Sample / analysis refrigerant chemistry X
Replace system filters / driers and clean strainers X
Replace A4 gas filter X
Replace oil return filter X
Check / drain seal oil trap X X
Check / clean oil cooler
Check relief devices
X
losing oil at light load, faulty or worn suction end shaft
seal, etc.
Also check the following:
A. Oil Filter Element – Check for any particles of
metal. Any evidence of aluminum particles may
be an indication of bearing wear.
B. Control – Check that the control that caused
the shutdown is operable and at the specified
setpoint.
C. Maintenance – The frequency of oil and oil
filter element changes, cleaning water side of
oil cooler, cleaning air filters in control circuit.
D. Air – Check air pressure to control circuit and
PRV actuator.
E. Calibration – Check the frequency of con-
trol calibration.
Compare the compressor shaft alignment to the origi-
nal, or subsequent, alignment records. Improper align-
ment could increase vibration (driver, gear, and com-
pressor), wear and/or damage to compressor, driver and
gear parts (i.e. seal). See Form 160.71-N2 for proper
alignment procedures. If alignment tolerances do not
coincide with the alignment records, determine the rea-
son and correct to the required by hot check.