IV-16
HYDRAULIC UNITSHST PUMP
2. Remove the charge relief valve.
• Before removing the screw adjustable relief
valve plug, mark the plug, lock nut (5), and
housing so as to approximately maintain the
original adjustment when assembling.
a. Remove the screw adjustable charge relief
valve plug (6) by loosening the lock nut (5)
and unscrewing the plug. Remove the O-ring
from the plug (6).
b. Remove the spring (7) and poppet (8) from
the housing.
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