MI MILITARY SE SEALIFT COMMA MMAND MSC SHIPBOARD LUBE OIL SAMPLING 29 APR 2020 N7
MSC LUBE OIL SAMPLING What a are t e the g goa oals ls of of L Lube O Oil l Samp mpling? g? 1) Determine Condition of Equipment 2) Determine Condition of Lubricant THIS IS THE TARGET! N7
MSC LUBE OIL SAMPLING Wh Why d do we c care? e? 1. Reduced cost 2. Pre-damage indicators 3. Early damage detection N7
MSC LUBE OIL SAMPLING How do w we p pick w what n need eds s sampled led? 1. Manufacturer requirement 2. Equipment cost, impact on mission or safety 3. RCM (MER) review indicates there is an advantage 4. ABS survey item for extending open and inspect 5. Volume of lubricant justifies cost (MPDE, MRG, SSDG) N7
MSC LUBE OIL SAMPLING How t to sample? le? 1. Equipment has a location where sample can be taken 2. No safety or logistic difficulties in obtaining a representative sample 3. Volume of lubricant N7
MSC LUBE OIL SAMPLING How do we make sure that the sample is representative of the goals? 1. Lubricant is in circulation (homogenous) 2. Sample is taken from area of circulation 3. Sampling system is flushed (uncontaminated) N7
MSC LUBE OIL SAMPLING What are some sample collection methods ? A. Drop Tube B. Sample from Drain Port C. Sampling During Oil Change D. Sample on Pressurized Line N7
SAFETY & PRECAUTIONS • Before starting or stopping ANY equipment, ensure that supervisory and watch personnel are informed. NEVER start any equipment without permission/knowledge of supervisory personnel. • Moving equipment can cause personnel injury. ALWAYS use caution when working around moving equipment. • Some lubricants are carcinogenic or otherwise hazardous if they contact skin, are inhaled or otherwise ingested. ALWAYS wear appropriate PPE when working with lubricants. • Sampled lubricants may be hot. Use caution and wear appropriate PPE to prevent injury. N7
SAMPLING METHODS Method A d A: Drop T p Tube be Sampling utilizing a drop tube with a vacuum pump is an acceptable method for obtaining a representative sample. The sample is typically obtained while the equipment is not running from a dipstick or fill port. N7
SAMPLING METHODS Method A d A: Drop T p Tube be 1. Cut end of drop tube at a 45° angle to reduce risk of sampling sludge. 2. Insert drop tubing and flush 5 to 10 volumes of the sample tubing to a waste container prior to drawing sample (properly dispose of waste oil or return to sump as directed). 3. Fill sample bottle to 3/4 full; loosen bottle to release vacuum and stop flow (or depress vacuum release button). 4. Remove sample bottle from pump, secure lid to top of bottle and place sample bottle into shipping container and secure protective lid. 5. Remove tubing by cutting just above the knurled knob and pull through from below to prevent pump contamination. 6. Ensure sump oil level is within the recommended operating range. N7
SAMPLING METHODS Method B d B: S Sampl ple f from D Drain P n Port • Sampling utilizing a drain port is an acceptable method for obtaining a representative sample. • The sample is typically obtained from a drain port on an equipment sump or reservoir while the equipment is not running,. • The oil from the low point of an equipment sump or reservoir near the drain valve will not initially be a representative sample, since the low point collects higher quantities of contaminants (wear particles, silica/sand, etc.) and water. Therefore, before collecting a sample of oil from drain port, flush the drain into a disposal/waste bucket a minimum of 5 to 10 volumes of the drain line and until oil is a consistent color. N7
SAMPLING METHODS Method B d B: S Sampl ple f from D Drain P n Port N7
SAMPLING METHODS Method B d B: S Sampl ple f from D Drain P n Port 1. Verify the equipment has been running for one (1) hour minimum under normal operating conditions and has not been secured more than 10 minutes. If not, run equipment under normal operating conditions for at least 10 minutes before proceeding. 2. Shut down equipment and wait no more than 10 minutes to pull sample. 3. Remove drain plug and/or open drain valve. 4. Monitor draining oil for change in appearance to a consistent color ( a minimum of 5 to 10 volumes of the drain line ). 5. Fill bottle 3/4 full, install drain plug and/or close drain valve. 6. Ensure sump oil level is within the recommended operating range. N7
SAMPLING METHODS Method C d C: S Sampl pling ing D During ng O Oil C Chang nge 1. Remove drain plug and drain oil into an uncontaminated container. 2. Use the vacuum pump and 10” of tubing to draw the oil sample from the waste container. 3. When bottle is 3/4 full, loosen bottle to release vacuum and stop flow (or depress vacuum release button). 4. Remove tubing by cutting just above the knurled knob and pull through from below to prevent pump contamination. 5. Refill sump with new oil per Vessel Lube Chart. 6. Properly dispose of waste oil. N7
SAMPLING METHODS Method D d D: P Pressur urized L d Line ne S Sampl pling ng • Sampling from a pressurized line is the preferred method of obtaining a representative sample, since a pressurized line provides the most accurate and repeatable data. • The sample is obtained from a system return line, typically while the equipment is running, from a line that utilizes the pressure of the equipment's circulation system. N7
SAMPLING METHODS Method D d D: P Pressur urized L d Line ne S Sampl pling ng 1. Verify the equipment has been running for one (1) hour minimum under normal operating conditions. 2. Wipe sample valve port with clean cloth. 3. Flush 5 to 10 volumes sample line volume to a waste container prior to drawing sample (properly dispose of waste oil or return to sump as directed). 4. Fill sample bottle 3/4 full. 5. Ensure sump oil level is within the recommended operating range. N7
NOTES ON SPECIAL SAMPLES Notes o es on Refriger eration, Chi hiller er a and A d Air Con ondit itionin ing u unit it sample les • Refrigerant oil has entrained refrigerant that can be released during changes in pressure. It is also hydroscopic. This means it will collect moisture out of the air, which artificially inflates the water content in the analysis • To minimize these effects, the oil sample should be left under a heat lamp/incandescent desk lamp with the cap slightly loosened to allow the sample to de-gas for approximately 60 minutes. • The cap must remain slightly loose to allow entrained refrigerant gas to escape, but not let ambient air to contact the surface of the oil during this process, which would absorb water from the air. • Failure to do this can result in the bottle breaking during transit, and the sample being lost. N7
SAMPLE TUBE FLUSHING Sample le T Tub ube Fl Flus ushing *B *Bas ased o on 1 10x d x dead v volume Pipe Details Suggested flush volume (milliliters) per pipe length* Pipe ID (in) 1 Inch 2 Inches 3 Inches 4 Inches 5 Inches 6 Inches 1 Foot 1/2 in. Schedule 40 0.622 50 100 150 200 250 300 600 3/8 in. Schedule 40 0.493 32 64 96 128 160 192 384 1/4 in. Schedule 40 0.634 16 32 48 64 80 96 192 1/8 in. Schedule 40 0.269 9 18 27 36 45 54 108 Steel Tubing 1/2 in. .049 Wall 0.402 21 42 63 84 105 126 252 3/8 in. .049 Wall 0.277 10 20 30 40 50 60 120 5/16 in. .049 Wall 0.215 6 12 18 24 30 36 72 1/4 in. .049 Wall 0.152 3 6 9 12 15 18 36 3/16 in. .032 Wall 0.124 2 4 6 8 10 12 24 1/8 in. .032 Wall 0.061 1 2 3 4 5 6 12 Microbore Hose 2mm Bore 0.0786 1 2 3 4 5 6 12 Sample Hose 1/2 in. .062 Wall 0.376 18 36 54 72 90 108 216 5/16 in. .037 Wall 0.2385 7 14 21 28 35 42 84 1/4 in. .037 Wall 0.176 4 8 12 16 20 24 48 3/16 in. .025 Wall 0.1375 2 4 6 8 10 12 24 N7
LUBE OIL TEST & ANALYSIS GUIDE Lub ube O Oil T Test a and A nd Ana naly lysis is G Guid uide ( (LTAGs) • These guides provide sample point specific instructions on where and how to draw a REPRESENTATIVE sample for each measurement point in the vessel oil analysis program. • Developed by vessel class, they are groomed through feedback to exactly define the process for each vessel. • A number of failures, un-identified by oil analysis; as well as a significant number of samples being collected in the wrong location, prompted this effort. N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL TEST & ANALYSIS GUIDE N7
LUBE OIL BOTTLE LABELING L. L.O. S Sample le Bottle le La Labelin ling • Printed Lube Oil Labels should be placed on the Sample Bottle itself and NEVER the white plastic shipping container. • Information that should be entered on the label includes Date, Oil Hours (if available), Equipment Hours (if available) and any comments for the lab. An example label is shown below. N7
Recommend
More recommend
