Gardner Denver Vacuum Pump VCS 300

Switch off the machine and secure it against accidental switching on

Vent the pump to atmospheric pressure and let it cool down

Open the catch of the oil filling point (Fig. 7/H)

Open the oil discharge point (Fig. 7/K) and completely discharge the used oil

Close the oil discharge point (Fig. 7/K)

Fill in new oil through the oil filling point (Fig. 7/H)

Check the oil level in the sight glasses (Fig. 7/I)

Sign off on the oil change procedure

NOTICE: Property damage due to insufficient maintenance! If the air oil removal devices are strongly polluted, their functioning will be reduced, which can cause machine failures.

Check de-oiling elements for soiling at regular intervals.

Replace de-oiling elements after 2,000 operating hours at the latest, or if the filter resistance exceeds 700 mbar (see pressure gauge accessories, check with short-time atmospheric intake).

Do not clean the de-oiling elements.

Always replace the de-oiling elements by new ones.

NOTE: For monitoring the level of soiling of the de-oiling elements, we recommend using a pressure gauge (ZDM). This enables a check of the filter resistance with temporary atmospheric suction.

The air oil removal devices (4x) may be contaminated with particles of dirt when the machine has been running for a long time (power consumption and pump temperature increase). Reduce the change intervals accordingly depending on how contaminated the discharged medium is.

Switch the machine off, secure it against accidental switching on and vent to atmospheric pressure. Let the pump cool down.

Unscrew air oil removal elements (Fig. 7/L) with a ring spanner (width across flats 19 mm) counter-clockwise.

NOTICE: Property damage due to defective coupling sleeve! Defective sleeves can cause breaking of the rotor shaft and blackout failure of the machine.

NOTICE Property damage due to frequent starting and high ambient temperature! Frequent starting and high ambient temperature reduces the lifetime of the sleeve.

Regularly check the coupling sleeve for wear.

The coupling sleeve is subject to wear and must be checked regularly (at least 1 x per year).

To check the coupling, switch off the motor and ensure that it cannot be switched on again.

Tighten the eyebolt on the motor firmly.

Secure the lifting gear on the ring bolt of the motor.

Undo the screws on the motor flange.

Remove the motor axially with the coupling half on the motor side from the motor flange and suspend with the lifting gear.

NOTICE: Property damage due to bad lubrication! If the oil level is too low, this can cause damages to vacuum pump.

Check oil level every day and, if necessary, refill oil.

Check the oil level in the sight glass (Fig. 2/I) at least once daily.

To refill the oil, switch off the machine and bleed to atmospheric pressure. See chapter 7.6.1 “Refilling of oil”

Sign off on the daily vacuum pump maintenance

1. Check the pipes and screws for leaks and ensure their tight fit and if necessary re-seal or re-tighten.

2. Check the terminal box and cable inlet holes for leaks and if necessary re-seal.

3. Clean the ventilation slots on the machine and the motor cooling ribs.

CAUTION: Danger of injury when dealing with compressed air! When the cooler is blown off with compressed air, loose solid particles or powder dust swirling around may cause injury to the eyes. Inhaling can damage lungs. Wear protective glasses and dust mask when cleaning the cooler with compressed air.

NOTICE: Property damage due to insufficient maintenance of the oil cooler! Due to soiled cooling ribs of the oil cooler (e.g. From dust) and insufficient maintenance, the cooling capacity of the machine is reduced. This can cause damage of the machine.

- Clean the oil cooler at regular intervals.

a) Switch the machine off, secure it against accidental switching on and vent to atmospheric pressure. Let the pump cool down.

b) Release a screw (Fig. 9/s2) and two nuts (Fig. 9/n2) on the hood.