Powerex AS-XXX - Manual (Page 21)

5
Reciprocating Air Compressor Pumps
Air Filter Replacement
1. Remove wing nut.
2. Remove canister and wipe
after removing old cartridge.
3. Remove and discard filter
cartridge.
4. Install new filter cartridge.
Do not attempt to clean
and reuse filter cartridge.
Wipe clean with dry cloth
once new filter is in place.
Ring Replacement Every 15,000 Hours
1. Remove cylinder head
bolts on each cylinder.
2. Remove and discard form seal
or gasket.
3. Replace form seal or gasket.
4. Remove valve plate and clean
with dry cloth.
5. Remove and discard cylinder
seal or gasket.
6. Replace with the new seal or
gasket.
7. Remove and discard valve
wear pad.
8. Replace with new pad.
9. Remove cylinder bolts and
cylinder. Note the cylinder
orientation. Inspect for
abnormal wear.
NOTE: Liquid gasket required
between cylinder & crankcase
and bearing cap on all LPS
Models (P. N. #JP013400AV).
11. Replace rings. Orientate ends
180˚ opposite from each other.
12. Apply thin continuous layer of
liquid gasket to cylinder flange.
Install cylinder. Be careful of
orientation. Torque cylinder
bolts (See chart).
13. Install valve set with new seals.
14. Install head and cylinder head
bolts. Torque head bolts (See
chart).
15. Unit is ready for full operation.
No break-in is required.
Figure 3 - Air Filter Replacement
Figure 4 - Ring Replacement
Torque
Model (in. lb.)
CS100P 156
LPS010 156
LPS020 156
LPS030 156
LPS050 295
LPS075 295
LPS100 295
10. Remove piston rings.
Cylinder Bolt Torque
Head Bolt Torque
Torque
Model (in. lb.)
CS100P 156
LPS010 156
LPS020 156
LPS030 156
LPS050 295
LPS075 156
LPS100 156