Hypro 9910-D1064, Installation, Operation, Repair And Parts Manual

Page: 5 / 24

- 5 -
Diaphragm Replacement
Parts List for Flange Kit 9910-HYD5312
Diaphragm Replacement: D813, D1064, D1265, D1516
Change diaphragms every 500 hours or three months,
whichever comes first.
1. Drain oil from crankcase (refer to Maintenance, p.4).
2. Remove pump head bolts and heads.
3. Remove the bolt securing the diaphragm (see
Figure 1).
4. Remove the old diaphragm and the washer (see
Figure 1).
5. Install a new diaphragm; then, turn the crankshaft to
bring the piston to its down-stroke and seat the
diaphragm into the sleeve groove.
6. Install the washer and bolts removed in steps 3 and
4. Refer to parts breakdown for proper torque.
7. Replace the pulsation dampener diaphragm by first
bleeding the air from the dampener. Remove the
bolts from the dampener cover and replace the
diaphragm. Reassemble the cover in place and
charge the dampener to 20% of the operating
pressure.
8. Refill the crankcase with Hypro Oil (part number
2160-0038). Rotate the shaft to distribute the oil, and
fill to proper level.
Figure 1
REF. PART QTY.
NO. NUMBER DESCRIPTION REQÕD.
1 9910-160670 M10x25 Hex Bolt 4
2 9910-6211 Flange 1
3 9910-200231 Lockwasher 3
4 9910-620470 M10x20 Bolt 3
5 9910-6682 Coupling 1
6 9910-160671 M10x25 Bolt 3
Bolt
Washer
Diaphragm
Figure 2. Hydraulic Motor-Mounting Flange Kit
Maintenance
Maintenance Schedule
Form L-1383 (12/11, Rev. B)
NOTE: When ordering parts, give QUANTITY, PART NUMBER,
DESCRIPTION, and COMPLETE PUMP MODEL NUMBER.
Reference numbers are used ONLY to identify parts in the drawing
and are NOT to be used as order numbers.