Head disassembly
NOTE: Head Rebuilding should be performed in a clean work area. Dust or dirt on O-rings or other parts
can scratch inner surfaces, with subsequent leakage.
1. Using a small screwdriver or similar tool
remove the Plug Seal. However do not
damage the sealing surface in any way as it
may lead to leakage.
Removal of the Plug Seal
Head component identification (40E30N)
Head disassembled
2. Using a small screwdriver or similar tool
remove the adapter Seal from the groove in
the end plug.
Removal of the Adapter Seal
8