Oil Replacement; Replace The Oil In The Compressor At Suitable Intervals For The Oil Type Used; Figure 19 Oil Filling; Figure 20 Oil Discharge - Hertz HDD Series Instruction Manual

MAINTENANCE

9.3.2 Oil Replacement

Replace the oil in the compressor at suitable intervals for the oil type used.

Figure 20 Oil Discharge

➢ Shut down the compressor.
➢ If the compressor is cold (not working), first operate it for 5 to 10 minutes to warm the oil, and then
switch off it.
➢ Allow 3-5 minutes for the internal pressure to be discharged and the oil to settle downwards.
➢ Remove the oil filler plug and oil filter.
➢ Open the oil discharge valve under the separator tank to completely discharge the oil. Upon full
discharge of the oil flow, close the oil discharge valve.
➢ If oil filter mounted upside-down, fill the new oil filter with clean oil and install filter. If oil filter
mounted upside, install without filling oil.
➢ Fill the oil up to the normal level (green color) of your compressor.
➢ Replace the oil filling plug, and complete all the connections.
➢ Operate the compressor for a few minutes to check any possible oil leaks from the internal parts and
components.
➢ Stop the compressor, and wait for the oil to settle, and check the oil
level, and complete if necessary.

Figure 19 Oil Filling

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