15
nitrogen gas generator
GEN
2
i4.0
9.1
service ‘B’ instructions - exhaust block
Piston Servicing
Recommended tools;
• 5mm, 8mm, Allen Key Attachments
•
Torque Wrench (7-40Nm)
• Piston Removal Tool
1. Carry out all steps of the ‘Shut Down Procedure Before
Maintenance’ (page 5)
2.
Remove the end plates (4x M10 screws)
3. Screw the Piston Removal Tool into the rear of the piston and pull
- Take note of the piston positioning
4. Discard the O-rings, wear rings and sealing disc.
5. Clean the piston
6. Grease the new O-rings and apply to the piston
7. Clean and lightly regrease piston bore
8.
Refit the pistons into the manifold
- The small piston is located in the center hole
9.
Re-attach the front plates. The 10mm bolts torque setting; 40Nm
10. Carry out all the start up procedure steps on page 6
Pressure will build due to the CMS, expect
loud releases of low pressure, high volume gas
Use a food grade grease
for bearings and sealing
Sealing
Disc
Recommend
Grip Region
(If Required)
Piston
Removal
Tool
O-Ring
Wear Ring
O-Ring
