Quick-connect (push type) fuel line fittings must be disconnected using proper
procedure or the fitting may be damaged. There are two types of retainers used
on the push connect fittings. Line sizes of 38 and 516
inch diameter use a hairpin clip retainer. The 14 inch diameter
line connectors use a duck-bill clip retainer. In addition, some engines use spring-lock
connections, secured by a garter spring, which require Special Spring Lock Coupling
Tools 49 UN01 051 and 49 UN01 052 (or equivalent) for removal.