Maintenance Works; Dismantling Housing; Exchanging The Circuit Board; Exchanging The Engine - BRAWA 233-H0 Betriebsanleitung

Maintenance works

3. Dismantling housing (Fig. 5)
Pull out buffer (1) on both sides, remove housing (2) upwards.
4. Exchanging the circuit board (Fig. 5)
Remove housing, see item 3.
Pull off dummy plug (3) from the direct current DC model or digital
decoder (4) of the AC model. Unscrew mounting screws (5).
Unsolder all wires (6) from the circuit board. For your own benefit
please mark where the individual wires were connected.
Remove circuit board upwards.
5. Exchanging the engine (Fig. 5)
Remove housing, see item 3.
Pull tank (9) off the underside (fastened with adhesive tape).
Unscrew the circuit board mounting screws (5), fold the circuit
board (7) including all wires to the side. Remove weights (9)
upwards. Push engine bearings (10) upwards with a screwdriver,
remove engine (11) upwards, unsolder wires (12) from the engine.
Remove carden shaft (13) and engine bearings (10) from the
engine.
Note: In the AC model only the front truck is driven. For this reason,
there is no back cardan shaft (13) as shown in Fig. 5.
6. Exchanging the digital decoder or change-over
relay (Fig. 5)
Remove housing, see item 3.
Pull off digital decoder or change-over relay (4).
7. Exchanging traction tires and wheelsets (Fig. 5)
Warning: Turn locomotive over, the wheels and gear covering must
be pointing upwards.
Note: Direct and alternating current models have different trucks.
In the DC model, both trucks are the same as shown in Fig. 5
(front). In the AC model the trucks are different because the back
truck is not driven as shown in Fig. 5 left and right (front and back).
Depending on the locomotive model (DC/AC), the number and
position of the traction tires may vary.
DC, AC model:
Lift the gear covering (14) with a small screw driver and unclip.
Remove wheelsets (15) and exchange traction tires (16).
AC model:
Unscrew screws (17 and 18) remove pick up (19) and gear
covering (20), remove wheelsets (21).
8. Exchanging coupler pocket (Fig. 5)
Pull out coupler pocket pin (22), remove coupler pocket (23) with
coupler (24). Pull out coupler from coupler pocket. Please ensure
when assembling that the coupler spring (25) is positioned
correctly.

9. Exchanging the pick up, alternating current AC

(Fig. 5)
Unscrew the pick up's (19) mounting screws (18) and remove
pick up.
10