Stanley Bostitch MRC2 Manual De Instrucciones página 13

ADJUSTING OPERATING PRESSURE (fig. 23)
You do not have to use the maximum operating pressure at all times. On the contrary, the pneumatic
tool being used often requires less pressure. On compressors supplied with a pressure reducer,
operating pressure must be correctly adjusted.
Release the pressure reducer knob by pulling it up, adjust pressure to the required value by turning the
knob clockwise to increase pressure and anti-clockwise to reduce it. When you have obtained optimum
pressure, lock the knob by pressing it downward (fig. 23). For pressure reducers equipped without a
pressure gauge, the set pressure can be seen on the graduated scale located on the reducer body.
On pressure reducers equipped with a pressure gauge, pressure can be seen on the gauge itself.
WARNING: Some pressure regulators do not have "push to lock", therefore simply turn the knob to
adjust the pressure.
MAINTENANCE
Before attempting any maintenance jobs on the compressor, make sure of the following:
– Master power switch in position "0".
– Pressure switch and the control unit switches all off, in position "0".
– No pressure in the air tank. Every 50 hours of duty: we advise you to dismantle the suction filter and
clean the filtering element by blowing compressed air on it (fig. 24).
You are recommended to replace the filter element at least once if the compressor operates in a clean
environment, but more frequently if in a dusty environment.
The condensation in the tank must be drained at least once a week, by opening the drain tap (fig. 26)
under the tank. Take care if there is compressed air inside the cylinder, and water could flow out with
considerable force. Recommended pressure: 1–2 bar max.
Condensation of compressors that are oil lubricated must not be drained into the sewer or dispersed in
the environment as it contains oil.
LUBRICATING THE BEARINGS
All the bearings are lubricated with grease for life with the exception of the roller casing fitted on the
connecting rod side of the PSV units which is to be washed with solvent and relubricated with "Kluber
Barrierta L 55/2" grease every 1500 hours of operation (white grease). The grease must completely fill
the spaces between the rollers; excess lubricant will be expelled during the initial hours of operation.
OIL CHANGES – TOPPING UP WITH OIL
The compressor is filled with synthetic oil "SAE 5W50".
We recommend a full change of oil in the pumping element within the first 100 hours of duty.
Unscrew the oil drain plug on the housing cover, allow all the oil to flowout, and re-screw the plug (fig.
27). Pour oil into the upper hole of the housing cover (fig. 29) until it reaches the level indicated on the
stick (fig. 9).
Once a week: check oil level of the pumping element (fig. 9) and see if it needs topping up. For
operation at ambient temperature in the range -5°C to +40°C, use "SAE 5W50" synthetic oil. The
advantage of this oil is that is does not lose its characteristics either in winter or summer. Do not drain
used oil into the sewer or dispose of it in the environment.
OBSERVE THIS TABLE FOR OIL CHANGES
TYPE OF OIL
Synthesis..............................................500
Synthetic oil: ........................................300
(MOBIL, SHELL, ESSO, BP or OTHERS)
Other types of oil: mineral multigrade
SAE 15 W40.........................................100
HOURS OF DUTY