Water And Steam Filters; Sealing Of Main Bearings - Drip Pans; Brake - Primus MB 90 Installation And Maintenance Manual

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5.10. WATER AND STEAM FILTERS

Machines are equipped with filters on water and steam inlets (if the machine has steam heating). It is
necessary to clean up the filters occasionally to avoid a prolongation of filling the machine with water.
Intervals of cleaning depends on the quantity of extraneous particles in the water line.
CLEANING THE FILTER
1. Stop the water (steam) inlet to the machine.
WARNING !
!
BEFORE YOU START THE STEAM FILTER CLEANING, CHECK IF THE INLET OF HOT WATER
(STEAM) TO THE MACHINE IS CLOSED AND COLD !
2. Unscrew the filter plug, fig.5.10. pos.4 and remove
the filter sieve (2).
3. Clean the sieve with running water or
with compressed air.
4. Put the sieve (2) and gasket (3) back to the
filter body (1) and tighten the plug (4).
5.11. SEALING OF MAIN BEARINGS – DRIP PANS
Bellow the main bearings there is a drip pan for dripping water which – in case of leakage – collects the
water occurring in sealing of bearings. Inspection should be executed every three months here !
When the water occurs, the sealing must be replaced by our customer service.

5.12. BRAKE

Brake is safety element of the machine, it brakes the machine when the power supply or air supply is interrupted.
Check regularly condition of brake block wear and replace them by the new ones if needed.
REPLACEMENT OF THE BRAKE BLOCK
WARNING!
!
THE MAIN SWITCH OF THE MACHINE MUST BE IN „OFF" POSITION!
1. Disconnect an air hose from the brake screw joint.
2. Remove an air filter, fig.5.12. pos.3 on the brake body (1).
3. Put the bolt M10x50 (4) (part of the supply) into the opening in the brake body, you will brake off the
brake shoes (2) after screwing it manually.
4. Remove the brake from the machine.
5. Tilt the brake shoes approximately by 45° and replace the brake block (5) on both brake shoes.
6. Stretch the brake shoes on distance approx. 14 mm turning the screw (4) and set mutual parallelism
of braking area of brake shoes by means of stop screws of brake shoes (6). Secure the screws (6)
against releasing using the adhesive intented for such purpose. (e.g. LOCTITE 243).
7. Install the brake back to its place.
8. Unscrew the bolt (4) and install back an air filter (3).
9. Connect an air hose on the brake screw joint.
1. Brake body
2. Brake jaws
3. Air filter
4. Bolt M10x50
5. Brake block
6. Stop screws of brake shoes
Fig.5.12. Brake
513289 PUBLICATION DATE 07/04
1. Filter body
2. Filter sieve
3. Gasket
4. Plug
Fig.5.10.
INSTALLATION AND MAINTENANCE MANUAL 23