Bauer mariner 320 - Oil Level Check and Change

Instruction Manual  Breathing Air Compressors
26
For operation under less severe conditions we can also rec
ommend mineral compressor oils which are suitable for oper
ation under ambient temperatures between +5 °C (41 °F)
and +35 °C (95 °F). Here also, pre-heating is required for
lower temperatures.
Abb. 36 Lube oil circuit
1
2
3
4
5
OIL LEVEL CHECK
Check oil level at sight gauge on either side of compressor
block every day prior to putting compressor into operation.
Oil level must be between minimum and maximum notches,
see Abb. 37. Oil level must never be below minimum mark
as this will cause severe damages due to lack of lubrication.
Oil level must also not exceed maximum as this will cause ex
cessive lubrication of compressor and result in valves sooting
up.
Maximum
Mini
mum
Abb. 37 Oil sight gauge
OIL CHANGE INTERVALS
For units equiped with B-Timer, observe
the maintenance informations on the dis
play (see chapter 3.8.).
Mineral oils every 1,000 operating hours, at
least annually
Synthetic oils every 2,000 operating hours, at
least biennially
OIL CAPACITY
Oil capacity approx. 2.8 liters
OIL PACKAGES
BAUER compressor oil is available in various quantities, refer
to oil list in the annex.
OIL CHANGE
- Run compressor warm.
- Remove red cap from oil filler neck (1, Abb. 38).
- Drain oil while still warm by means of oil drain plug. On
units equipped with oil drain hose remove hose union nut
from coupling at hose bracket. Collect oil in a suitable
container. Exchange gasket and reinstall plug.
Replace oil filter with every oil change,
otherwise the bypass valve would open if
filter is clogged, and the oil would circulate
without being filtered!
- Remove two screws (1, Abb. 39) with a 13 mm spanner.
Remove cover (2).
- Remove oil filter (1, Abb. 40) from rubber gasket at cover.
- Mount a new filter element (P/N N25326) and replace
and fasten cover.
- Fill new oil through filler neck to Max.- mark at sight
gauge.
- Pour oil in slowly, wait a few minutes, then put unit into
operation.
CHANGING THE OIL TYPE
To avoid severe damage to the compressor
unit when changing the oil type, the fol
lowing measures should be strictly ad
hered to:
- Drain oil completely while still warm.
- Check valves, coolers, separators, purifiers, and all pneu
matic tubes and hoses for deposits.
If deposits are detected, perform the following:
- Change or clean valves, coolers, separators, purifiers, and
all pneumatic tubes and hoses from deposits.