P2.x AMEX
Problem / Failure
Possible cause
Solution
Premature spider worn-
out
– E. g. caused by Ozone contact or similar, ef-
fecting a physical change of the spider
– Make sure that physical changes of the spider do
not occur
Tripping by protective
device
– Coil- and terminal short circuit
– Measure insulation resistance
– Start-up time exceeded
– Check start-up conditions
Insufficient delivery rate
– Leakage
– Re-tighten the head screws, regard allowed
torque (see chapter Maintenance).
– Bellow cracked
– Should be repaired by Bühler service or refer to
Replacing bellow and connecting rod-eccentric-
combination.
– Valves damaged or spoiled
– Blow out valves carefully or replace them or refer
to chapter Replacing the inlet and outlet valves.
Tab. 1:
Trouble shooting
For replacing spare parts, please refer to chapter Maintenance.
7.2 Spare parts and accessories
Please also specify the model and serial number when ordering parts.
Upgrade and expansion parts can be found in our catalog.
Available spare parts:
Spare part
Part no.
P2.2 / P2.4 Amex
Bellow
4200015
Connecting rod / eccentric combination
4200075
Flexible spider for coupling
4220011
Set of 100 °C valves
4201002
Set of 160 °C valves
4202002
O-ring bypass valve (Viton)
9009115
P2.82 / P2.84 Amex
Bellow
4200071
Connecting rod / eccentric combination
4200034
Flexible spider for coupling
4220011
Set of 160 °C valves
4202002
O-ring bypass valve (Viton)
9009115
Tab. 2:
Spare parts and accessories
25
Bühler Technologies GmbH
BE420003 ◦ 04/2017
