Pressure Relief Valve
Valve may be replaced only if valve is mounted in pump housing. Remove pump and place on bench.
NOTE:
Do not hold pump by clamping in vise.
Using a steel bridge and a gear puller, valve may be removed. To replace, insert new valve into mounting hole. Place a block of wood over valve and tap with hammer until valve shoulders lightly in housing.
NOTE:
If pressure plug is installed in new relief valve, remove this plug before installing valve.
After valve is installed, pressure plug is installed into valve by pressing against its center.