ENCORE
®
700 METERING PUMP
NOTE: The set screws (48) are coated with Nylok
™
to seal. If set
screws were removed or are leaking, replace with a new one.
c.
With a 6mm Allen wrench, remove one M8 screw (21) from the
eccentric shaft (45), which is accessible through the carrier bear-
ing (22) end opening. Hold the worm wheel (50) to keep the
eccentric assembly from turning.
NOTE: If the pump is equipped with detent stroke mechanism, pro-
ceed to step e, if not, proceed to step d.
NOTE: Pumps with an Electric Stroke Positioner do not have detent
stroke mechanism.
d.
Turn the carrier bearing (22) counterclockwise until it comes all
the way out, then proceed to step i.
e.
Refer to Dwg. 440.400.000.030 for the next three steps f, g, and h.
f.
Turn the carrier bearing (22) until the two detent pawls (52) are
visible.
g.
Hold the two detent pawls, they are pre-loaded with springs (53),
and continue to turn the carrier bearing counterclockwise until
the two detent pawls are free.
h.
Carefully release and remove the two pawls and two springs and
set aside. The carrier bearing can now be unscrewed completely
out.
NOTE: The bearing(19) and theflat washer(20) neednot be removed
unless they are being replaced. A special wrench is needed to loosen
or tighten the adjuster bearing (23) (AAA3731/W2T10059).
i.
Unscrew the four M8 screws (49) and remove the stroke control
housing (25).
j.
Unscrew the pre-load nut (17).
k.
Unscrew the four M8 screws (3) and remove the gear access
flange (2).
l.
Slide out the worm wheel (50) and the drive bushing assembly (4).
m.
Holding the connecting rod assembly, slide the eccentric assembly
out of the gearbox.
WT.440.400.001.UA.IM.1012
44
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