Bauer Junior II-B-F01 Instruction Manual page 32

CHANGING THE VALVES OF THE 1ST STAGE
Intake and pressure valves of the 1st stage are combined in
one plate valve under the valve head, see Fig. 36.
7
6
5
1 Valve head
2 Gasket
3 Plate valve
4 O-ring
5 Valve head screw
6 Washer
7 Nut
Fig. 36 Valve head 1st stage
- Loosen two cap nuts from tube connectors at valve head
and safety valve connector and remove inter-cooler.
- Remove four valve head screws (5) from valve head (1).
Take off valve head.
- Remove gasket (2) and plate valve (3).
- When re-installing the valve, check that mark "S" is facing
upwards and towards intake filter side. The crossbar of
gasket (2) seals the intake opening with respect to the
two outlet openings of the pressure valve.
CHANGING THE VALVES OF THE 2ND STAGE
Both, pressure and intake valves can be serviced from out­
side, see Fig. 37.
- Remove two captive nuts (1) and spring-washers (2).
- Remove plate (3).
- Remove valves (4) and (7) using two screw-drivers as
shown in Fig. 39.
- Assemble in reverse sequence. Position spring-washers
with curved side facing upwards. Fasten nuts so that plate
(3) is parallel to the valve head. Torque with 10 Nm (1
kpm).
26
Instruction Manual w Junior II
1
1 Nut
2 Spring-washer
2
3 Plate
4 Pressure valve
5 O-ring
6 Valve head
3
7 Intake valve
8 Valve head screw
4
Fig. 37 Valve head 2nd stage
CHANGING THE VALVES OF THE 3RD STAGE
On this valve head, the valves are arranged on the upper and
lower side due to the small diameter of the 3rd stage, see
Fig. 38.
For removal and installation of the intake valve (4) use special
tool which is also part of the tool set delivered with the unit.
Pressure valve (3) is merely inserted into valve head (5). It is
sealed by O-ring (2) and fixed to the valve head by bolt (1).
1 Torque stud
2 O-ring
3 Pressure valve
4 Intake valve
5 Valve head
6 Valve head cover
7 Allen screw
8 Gasket
Fig. 38 Valve head 3rd stage
Remove of 3rd stage pressure valve (3) according to Fig. 38.
- Unwind torque stud (1) a couple of turns.
Change intake and pressure valve of 3rd
stage together only.