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inserted in seal cap, thread set-screw into
stroke seal cap so set screw goes into slot
preventing rotation. Screw set-screw into
stroke adjuster body until it contacts control
rod (Item 80), then back set-screw out 1 turn.
6. Insure cal ring (Item 110) is attached to
stroke adjuster knob (100) and screw onto
stroke adjuster seal cap (Item 40) until knob
bottoms out. Adjust cal ring to O degree
position.
7. Press e-clip (Item 90) into groove of control
rod (Item 80) so it retains knob.
8. Adjust control knob (Item 100) to desired
setting and thread on locking knob (Item 70).
Locking knob will prevent accidental
changes during operation, and can be
loosened by hand.
9. Insert drain plug into housing, using thread
sealing compound. Discard old oil and fill
pump with specified oil.
10. Refer to appropriate sections for startup and
operation procedures.
4.8.6 Stroke Adjuster (XW, Figure 14)
1. Remove drain plug at bottom of XW pump,
and drain pump of all oil.
2. Remove e-clip (Item 230 Figure 14) and
remove control knob (Item 210) with a
adjustable wrench. Calibration ring (Item
200) is attached to control knob.
3. Using a 1/16” hex wrench, remove set screw
(Item 180) from seal cap (Item 225).
Remove control rod (Item 230).
4. Using a 1-3/4” wrench, unscrew seal cap
(Item 225). Remove the O-rings (Items 215
and 216) and back-up ring (Item 217) from
seal cap.
5. Clean all components with an appropriate
solvent. Contact Milton Roy for a recom-
mended solvent. Inspect al parts and
replace them if they are worn.
Reassemble the XW Stroke Adjuster as
Follows:
1. Slide O-rings (Items 215 and 216) and back-
up ring (Item 217) into appropriate grooves in
seal cap. Apply O-ring lubricant (or equiva-
lent grease) to outside surface of O-rings.
2. Carefully screw seal cap into pump housing,
so O-ring (Item 215) does not fall out of
recess in face.
3. Tighten seal cap until snug with 1-3/4”
wrench.
4. Apply O-ring lube (or equivalent grease) to
the outside surface of the control rod and
insert it into the seal cap (Item 230).
5. Apply a removable thread-locking adhesive
to set-screw (Item 180). With slot in control
rod located at 12 o’clock, and rod fully
inserted in seal cap, thread set-screw into
stroke seal cap so that set screw goes into
slot preventing rotation. Screw set-screw into
stroke adjuster body until it contacts control
rod (Item 230), then back set-screw out 1
turn.
6. Insure calibration ring (Item 200) is attached
to control knob. Screw control knob onto seal
cap (Item 225) until knob bottoms out using
an adjustable wrench. Calibration ring should
be set at zero degrees.
7. Press e-clip (Item 220) into groove of control
rod so that it retains knob.
8. . Insert drain plug into housing, using thread
sealing compound. Discard old oil and fill
pump with specified oil.
9. Refer to appropriate sections for startup and
operation procedures.
4.8.7 Relief Valve XT, Figure 7
LOSSEN THE ADJUSTMENT SCREW
SO THAT PRESSURE IS REMOVED
FROM THE SPRING BEFORE THE
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