Nordson ProBlue Flex - Remove the Shifter Fork (Double Acting Pumps Only); Remove the Cylinder Head and Cylinder (All Pumps)

SP Pump Diagnostics and Repair
B-15
Part 1128350_02
E 2020 Nordson Corporation
RemovetheShifterFork(DoubleActingPumpsOnly)
CAUTION! Handle the shifter fork with care. Dropping or otherwise
mishandling the shifter fork may damage the magnet.
1. Remove the hex-head screw and the washer from the shifter
fork.
2. Remove the shifter fork from the p iston by sliding the fork up to the
narrowest point on the piston.
Check/Repair
Shifter fork assembly
P/N 166880
Shifter fork assembly
high output pump,
P/N 1060354
Word “UP” is facing
upwards
Securely attached to
piston
Resting on piston
shoulder
Bent
Magnets
secure/undamaged
Replaceforkifbentor
magnet is damaged.
Special Reassembly Instructions
S The fork must be resting on the shoulder of the piston.
S The word “UP” must be facing the top of the pump frame.
RemovetheCylinderHeadandCylinder(AllPumps)
1. RemovethefourM6screwsandwasherssecuringthecylinderheadand
cylinder to the pump frame.
2. Remove the cylinder head.
3. Remove the cylinder by sliding it off the piston.
Check/Repair
O-ring P/Ns 940332 and
P/N 940420
O-ring for high output
pump, P/N 940420
Inspect for nicks,gouging, or swelling