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Service
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
7576A
Fig. 7. Remove packings and glands from piston rod.
Fig. 7
Not
used on
244197
used on
245889,
287946,
287814,
287815
ti3940a
Fig. 8. Remove throat packings and glands from cylin-
der. Discard throat packings and glands.
Fig. 8
7573B
Not
used on
244197
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.
Fig. 9
216
218 208
204
217
210
Not
used on
244197
244954, 246257, 245889; 208 and 218 are 203
and 223, respectively. 287946; 208 and 218 are
203 and 209, respectively.
Note: Pump 287814 & 287815 do not use leather
packings in piston stack. Alternately stack blue
(208) and brown (218) packings on these p umps.
1 1
1
7574c
used on
245889,
287946,
287814,
287815