Operation manual GMK-A
Page 27 of 35
B0887
Commissioning procedure:
a) Filling the unit with lubricant
The units may be operated with clean oil or grease from original pack-
ages only!
GMK-A with cartridge reservoir 380, 250 and 125 ml:
Fill the lubricant into the reservoir via the grease nipple (or the optional sealing nipple) on the
bottom of the unit.
To do this, connect your filling device to the conical grease nipple or sealing nipple and start
the filling process. The filling process must be stopped manually when the upper edge of the
following piston is about 10 mm away from the upper edge of the cartridge reservoir. The
venting process may be shortened if the filling is performed while the unit is running.
GMK-A with cartridge reservoir according to DIN 1283:
Replacement of the cartridge:
Unscrew reservoir and pull back piston bar up to stop. Then insert both sides opened grease
cartridge into reservoir, and screw reservoir on. Screw reservoir on and push the piston bar
back in again completely.
b) Bleeding the unit
In order to ensure a steady delivery, the unit and pipes needs to be vented. To this effect,
the electric magnet is to be activated as often until the lubricant comes out free of air at all
outlets.