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.
Not
used on 244197
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. 8
7573B
Fig. 6 | 7576A |
|
Fig. 7. Remove packings and glands from piston rod.
| used on |
| 245889, |
Not | 287946, |
used on | 287814, |
244197 | 287815 |
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.
|
| used on | |
|
| 245889, | |
| 210 | 287946, | |
Not | 287814, | ||
| |||
used on | 216 287815 | ||
244197 |
|
| |
217 1 218 204 208 1
1244954, 246257, 245889; 208 and 218 are 203
and 223, respectively. 287946; 208 and 218 are
203 and 209, respectively. | 7574c |
Fig. 7
ti3940a
Fig. 9
Fig. 8. Remove throat packings and glands from cylin- der. Discard throat packings and glands.
Note: Pump 287814 & 287815 do not use leather packings in piston stack. Alternately stack blue (208) and brown (218) packings on these pumps.
6 309277