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Diaphragm Assembly/Check Valve Replacement (cont'd)
To further disassemble pump, after #3 above:
7. Remove motor and drain oil, if complete disassembly
is required (motor removal instructions below).
8. Remove 4 screws (item 9) holding bearing plate (item 8).
(Torx T30)
9. Remove bearing plate (item 8) and thrust plate (item 7).
10. Remove drive shaft (item 6), bearing (item 5), bearing
ring (item 4) and yoke assembly (item 23).
WARNING! DO NOT disassemble the yoke assembly
(item 23). It is under extreme pressure, and serious
injury or death may result!
Assembly in reverse order. Hand start and tighten torx head
screws to 75 in. lbs.
Viscosity Correction Chart
Motor/Gear Assembly Removal
view of pump on page 5.)
1. If possible, position pump with sight caps down.
2. Remove four screws (item 17) and lift out motor/gear
assembly (items 11 - 16).
3. Drain oil from pump if additional maintenance to pump
is required.
Gear Assembly Replacement
1. Remove six screws (item 11) and pull gear assembly
from motor (item 12).
2. Pull drive gear (item 13) and key (item 14) from motor
shaft.
WARNING! DO NOT DISASSEMBLE GEAR ASSEMBLY.
Planet gears and ring gear are marked for proper assembly
and must not be altered.
INDIVIDUAL PARTS. REPLACE ENTIRE ASSEMBLY WHEN
REQUIRED (Kit 400F6557).
NOTES:
1. SUCTION LOSSES
Test pump was mounted on a 55 gallon drum of
oil, 1/2 full. A SOTERA 1" suction pipe was used.
A longer or smaller diameter inlet pipe will lower
the flow rate.
2. VERTICAL HEAD LOSSES
Test hose was horizontal with pump. Add 3 feet
of hose for each 1 foot of vertical rise.
3. OTHER LOSSES
Elbows, quick-disconnects, swivels, and check
valves in outlet or inlet hoses will restrict the
flow. Add the estimated length of hose for each
component used.
4
(Refer to exploded
DO NOT ATTEMPT TO REPLACE
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