Chevrolet 30 Series 1967 Service Manual page 347

pressure required to open the relief valve. For
identification, the pressure setting plugs are
color coded. To remove the pressure setting
plug, carefully unlock legs from inside surface
of relief valve with a small screw driver. To
install the pressure setting plug, carefully push
into relief valve until legs lock. If a pressure
setting plug is to be reused be sure leg angles
are sufficient for the pressure setting plug to
lock in place.
J-7055-5
1-21844
SILVER-250
RED-292
GREEN-283
SPECIAL TOOLS
J-6585
J-21058
F ig . 9—Sp ecia l Tools
AIR INJECTOR REACTOR SYSTEM 6T-5
Fig. 8— Pressure Setting Plug
CHEVROLET TRUCK SERVICE MANUAL