AIRLESSCO GS6250 - Manual (Page 14)

Maintenance
14 3A1187E
Packing Replacement Procedures
Disassembly of the Fluid Pump
1. Unscrew and remove the packing nut.
2. Push the piston rod down through the packings and
out of the pump.
3. Now push the packing removal tool up through the
pump and remove the top bringing the packings,
spacer and springs along with it, leaving the fluid
body empty.
NOTE: Make sure all packings and glands have been
removed from the fluid pump.
4. Clean inside of fluid body.
5. Disassemble all parts and clean for reassembly. Dis-
card any old packings. Save the metal upper glands.
Replace metal lower glands with new metal glands
from the packing kit.
NOTE: If the old packing had a metal gland, discard and
replace with a new plastic one from packing kit.
6. Lubricate leather packing in lightweight oil for 10
minutes prior to reassembly.
7. Unscrew and remove the packing nut.
8. Push the piston rod down through the packings and
out of the pump.
9. Now push the packing removal tool up through the
pump and remove from the top bringing the pack-
ings, spacer and springs along with it, leaving fluid
body empty.
NOTE: Make sure all old packings and glands have
been removed from fluid pump.
Reassembly of the Fluid Pump
1. Take the lower metal male gland and place it down
on the flat side.
2. Take three of the lower polyethylene V-packings and
tow of the leather V-packings and place onto the
male gland, with the inverted side down, in the fol-
lowing order:
• Polyethylene
• Leather
• Polyethylene
• Leather
• Polyethylene
3. Take the female adaptor, which is inverted on both
sides, and place it on top of the assembled lower
packings.
4. Follow step 2 above, but with the packings inverted
side up.
5. Take the second lower male gland and place it on
top of the assembled packings with the rounded
side down.
6. Take the assembled glands and packings (13 pieces
all together) and slide on to the lower half of the pis-
ton.
7. Take the spacer and slide over the top of the piston
(it doesn’t matter which direction it sits).
8. Take the three Belleville Springs and slide over the
top of the piston in the following order:
• First spring, curve facing down
• Second spring, curve facing up
• Third spring, curve facing down
9. Take the upper male gland and place it rounded side
up.
10. Take the three upper polyethylene V-packings and
two leather packings and assemble with the inverted
side down on to the male gland in the following
order:
• Polyethylene
• Leather
• Polyethylene
• Leather
• Polyethylene