Komptec KT-90E - Maintenance Work; Checking the Oil Level

KT-70E / KT-90E / KT-70SE User Manual Page 43 of 59 24 April 2018
10.4. Maintenance Work
10.4.1. Checking the Oil Level
Check the oil level on the dipstick in the oil fill cap daily before operation. Clean the
dipstick, reinsert without rethreading. Oil should be between the upper and lower lines,
it is good to top off the oil if the level is below the middle line. Each line on the dipstick
represents about 50ml of oil, it takes about 100ml to raise the oil from the bottom to the
top lines. Avoid overfilling of the compressor when refilling the oil.
If the compressor is operated with too little or too much oil, this can cause serious damage
to the compressor.
Only use the recommended oil (section 5.3), because other oils have an adverse effect on
the service life, and can destroy the compressor.
1. Open drain valves, bleed
the system completely
2. Remove oil fill cap
3. Remove dipstick
4. Oil level must be within the
upper and lower marks. If
below middle level, top off
oil.
5. Replace oil fill cap with
dipstick
Pouring oil directly into the fill hose can create a mess if the oil spills while filling, and it is hard to
estimate the amount of oil that was added. A simple technique to avoid the mess is to use a small
measuring cup, or a syringe, in the range of 50ml to 100ml, with a short length of hose attached.
Such syringes are readily available from medical supply stores, or on-line. Measuring 50ml of oil
with this technique both lets you know how much oil was added, and prevents spilling oil onto the
compressor.