Service Manual

Weichai America Corp.
Revision: August 2019 11
Reverse the Disassembly Procedure (2.5.2) to assemble the Mixer Diaphragm.
2.5.4 Mixer Diaphragm Inspection and Maintenance
If gas flow is insufficient:
1. Rotate the adjustment screw clockwise to increase the flow of gas.
2. Replace the gas diaphragm with a biogas diaphragm to increase the flow of gas.
To replace the mixer diaphragm according to maintenance specifications:
1. Remove the old mixer diaphragm.
2. Check the diaphragm for deformation, tears, and deficiencies. Replace it if necessary.
3. Check the diaphragm for oil contamination and corrosion. Clean it if necessary.
4. Clean the diaphragm with a special cleaning agent.
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