Piston Ring
A-6 Compressor Component View:
Remove or Disconnect
Tool Required:
J 24608 Teflon Piston Ring Installer
^ Piston rings (31).
^ Slice through the ring with a knife while holding the blade flat with the piston surface.
^ Do not damage the aluminum piston (32) or piston groove.
Clean
^ Clean the piston and piston ring grooves with a recommended cleaning solvent (trichloroethane, naptha, Stoddard solvent, kerosene, or equivalent) and blow the piston dry with dry air.
Install or Connect
Piston Ring Position And Installer Guide:
1. Piston (32) to J 24608-2.
^ Set the piston on a clean, flat surface.
2. Piston ring (33) to J 24608-2.
^ Place the dished or dull side down and the glossy side up.
Installing The Piston Ring:
3. Piston ring (33) to piston (32).
^ Push J 24608-5 (installer) down over J 24608-2 (guide).
^ If the piston ring is off-positive in the groove, reposition by moving with a fingernail or a blunt-edge tool.
^ J 24608-5 (installer) will keep the J 24608-2 (guide) inside when the piston ring is installed on the piston (32).
^ Remove the guide from the installer and do not store the guide in the installer because the seal will be stretched and weakened during storage. This can cause the seal not to hold the ring installer segments tight enough to the J 24608-2 (guide) when installing the piston ring (33) to the piston (32).
Sizing The Piston Ring:
4. Piston (32) to J 24608-6.
^ Lubricate the piston ring (33) area with 525 viscosity refrigerant oil.
^ Rotate the piston (32) and ring (33) into J 24608-6 at a slight angle until the piston is inserted against the center stop of J 23608-6.
NOTICE: Do not push the piston and ring assembly into J 24608-6 without positioning and rotating because the needle bearings of the ring sizer may damage the end of the piston.
^ Rotate the piston and ring assembly in J 24608-6 several turns until the assembly rotates relatively free in the ring sizer.
Gaging The Piston Ring Size:
5. Piston (32) to J 24608-1.
The piston (32) should pass through the ring gage with a two to eight pound force.
6. Repeat for the opposite end of the piston (32).
7. Lubricate both ends of the piston (32) with 525 viscosity refrigerant oil before installing the piston into the cylinder bore.