HOW TO TAKE AN OIL SAMPLE

We must recommend taking good, representative samples, for accurate results.

Be advised that if taking coolant or fuel samples, a separate sample gun should be used to avoid possible cross-contamination with previously taken samples.

There are two types of preferred sampling methods.

Live oil sampling

• Set machine to low idle
• Use a new piece of tube for each sample
• Remove dust cap from valve to be sampled
• Wipe valve with a clean cloth
• Insert probe into valve
• Discard @ 100ml of oil into waste container
• Insert probe into valve again
• Fill sample bottle to fill line
• Cap bottle and shake. Now discard oil and repeat previous step to remove possible contaminants remove probe from valve
• Cap sample bottle
• Complete sample ticket
• Ensure all details are filled in
• Post sample to lab

Vacuum extraction sampling

• Run machine and ensure all compartments are at operating temperature
• Turn off engine
• Cut sample tube to the length of the dipstick (if fitted)
• If no dipstick cut sample tube so it reaches half way into the oil depth
• Insert tube through head of pump and tighten retaining nut. Tubing should extend @ 4cm(1.5in) past the base of the pump head
• Install new sample bottle onto pump and insert end of tube into oil
• Pump the vacuum pump handle and fill sample bottle to fill line
• Cap bottle and shake. Now discard oil and repeat previous step to remove possible contaminants
• Hold the pump upright so the oil does not contaminate the pump
• If the pump is contaminated dissasemble and clean before use
• Complete sample label ensure all details are filled in
• Post sample to lab