Graco A Series Instructions-Parts List Manual page 5

WARNING
COMPONENT RUPTURE HAZARD
Do not clean or wipe the piston valve
threads. Cleaning the piston valve
threads could destroy the special sealing
patch and cause the piston valve to come loose
during operation, causing pump bursting and
possible serious bodily injury.
Fig. 6. Unscrew piston valve from piston rod. Clean
and inspect parts. The piston has a special thread
locking/sealing patch. Do not remove the patch. The
patch allows four disassembly/assembly procedures
before it is necessary to apply Loctiter to the threads.
Fig. 6
Fig. 7. Remove packings and glands from piston rod.
Not
used on
244197
Fig. 7
Service
Fig. 8. Remove throat packings and glands from cylin-
der. Discard throat packings and glands.
used on
244197
Fig. 8
Assembling the pump
Fig. 9. Soak all leather packings in SAE 30W oil for 1
hour minimum prior to assembly. Stack male gland
(204) on piston rod. Alternately stack UHMWPE (208)
and leather (218) packings (note orientation) on piston
rod. Install female gland (217). Install piston guide
(216) (note orientation) on piston valve (210). The spe-
cial sealing patch on piston valve threads is good for
four repackings. Use Loctiter on piston valve threads
after four repackings.
7576A
Not
used on
244197
used on
245889
244954, 246257, 245889; 208 and 218 are 203
1
ti3940a
Fig. 9
Not
218 204 208
1
and 223, respectively
7573B
210
used on
245889
216
217
1
7574c
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