ENCORE
®
700 METERING PUMP
•
Eccentric Assembly, Taper Roller Bearings, Connecting Rod,
Stroke Control Housing, and Knob Replacement (refer to Dwg.
440.400.000.010B)
Reverse the removal procedures for the replacement of the item
mentioned above, however, the following additional procedures
must be adhered to:
a.
Tighten the pre-load nut (17) just enough to eliminate axial move-
ment of the eccentric assembly in step j, above. The eccentric
shaft (45) must slide in and out without any binding.
NOTE: If the pump is equipped with detent stroke mechanism, pro-
ceed to step b, if not, proceed to step e.
NOTE: Pumps with an Electric Stroke Positioner do not have detent
stroke mechanism.
b.
Refer to Dwg. 440.400.000.030 for the next two steps, c and d.
c.
Screw the carrier bearing (22) to the stroke adjust housing (25)
up to the edge of the two holes for the detent pawls (52). Position
the two holes so that they are horizontal.
d.
Lubricate and install the spring, followed by the pawl, into the
holes and hold them in position. Continue to turn clockwise to
secure the pawls.
e.
Continue to turn the carrier bearing (22) clockwise until it stops.
The bearing (19) must be against the eccentric shaft (45) shoulder
before tightening the screw (21) in step c, above.
f.
Set the stroke position to approximately zero by turning the car-
rier bearing (22) counterclockwise until it stops. Then rotate the
carrier bearing one turn clockwise.
g.
Place a dial indicator with a magnetic base on top of the gearbox.
Set the indicator shaft to indicate the eccentricity of the sheave
(46), as shown in Figure 4-1.
WT.440.400.001.UA.IM.1012
45
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