POSEIDON PE 100-T, Instruction Manual

Page: 30 / 46

Instruction Manual
w
PE 100-T
24
GENERAL INSTRUCTIONS FOR CHANGING THE
VALVES
- Always replace valves as a complete set.
- Observe the correct sequence when fitting together
again.
- Check individual components for excessive wear. If the
valve seat and valve disks are dented, replace the valves.
- Valve head screws must be tightened with a torque
wrench (see tightening torque values chapter 7.).
- Check the valve space in the valve heads for dirt and
clean, if necessary.
- 30 minutes after restarting the compressor stop unit,
let it cool down to ambient temperature and retighten
valve studs and cap nuts. Otherwise valves could work
loose due to setting of the gaskets.
- Use only satisfactory gaskets and O-rings on reas­
sembly.
- After finishing all maintenance work on the valves,
turn the compressor manually using the flywheel and
check whether all items have been correctly installed.
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. 28.
1 Valve head
2 Gasket
3 Plate valve
4 O-ring
5 Valve head screw
6 Washer
7 Nut
Fig. 28 Valve head 1st stage
5
6
7
2
3
1
4
- 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 cross­
bar 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. 29.
-
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. 31.
- 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).
Fig. 29 Valve head 2nd stage
1 Nut
2 Spring-washer
3 Plate
4 Pressure valve
5 O-ring
6 Valve head
7 Intake valve
8 Valve head screw
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. 30.
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).