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5310894
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 oper ation, c ausing pump bur sting 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.
ti6183a
Fig. 6
Fig. 7. Remove packings and glands from piston rod.
Not
used on
287512
ti6184a
Fig. 7
Fig. 8. Remove throat packings and glands from c ylin-
der. Dis card throat packings and glands.
Not used
on
287512
ti6182a
Fig. 8
Assembling the pump
Fig. 9. Soak all leather packings in SAE 30W oil for 1
hour m inimum 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 pis ton wiper
(216) (note orientation) and backup washer (229) on
piston valve (210). The special s ealing patch on piston
valve threads is good for four repackings. Use Loc titer
on piston valve threads after four repackings.
Not
used on
287512
ti6185a
217
216
210
229
218 208204
Fig. 9
Note: pump 249122 and 289590 do not use
leather packings in piston stack. Alternately
stack blue (208) and brown (218) packings
on this pump.