Hydraulic Section Repair
C 2-2
Part 1102698
−
07
E
2019 Nordson Corporation
Guidelines for O-ring and Seal Replacement
CAUTION:
When removing O-rings and seals from grooves, do not scratch
the machined surfaces of the grooves. Scratches can cause leaks.
When rebuilding the hydraulic section, replace all seals and O-rings.
Lubricate all O-rings and packing V-rings with Parker O-Lube or equivalent
O-ring lubricant.
Coupling Removal and Replacement
CAUTION:
Do not scratch or score the connecting rod. Any burrs will
damage the U-cup seal and cause it to leak.
Coupling Removal
1. Stop the air motor in the middle of a stroke and disconnect the air supply
hose from the air valve.
2. See Figure C 2-1. Loosen the two set screws (B) in the coupling
sleeve (A) with a
3
/
16
-in. hex wrench.
3. Slide the coupling sleeve up the connecting rod (C) and remove the two
coupling halves (D) from the rod and plunger (8). Tap upward on the
sleeve with a rubber mallet to loosen it, if necessary.
4. Push the connecting rod up away from the plunger and remove the
coupling sleeve.
A
B
C
D
4
Tighten to 10.2
±
1 N
S
m
(90
±
10 in.-lb)
when re-installing
coupling.
Figure C 2-1
Coupling Removal and Replacement
4. Plunger
A. Coupling sleeve
B. Set screws
C. Connecting rod
D. Coupling halves
Содержание PermaFlo 815
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