Graco 222602, Instruction Manual

Page: 6 / 10

Service
6 307637S
Service
Dispensing Valve Service and
Adjustment
• To clean or replace the valve seal (1f), screw the
valve nozzle (1e) off the valve housing (1k). Remove
the gasket (1h). Unscrew ther etaining screw (1g)
from the valve stem (1j). Remove the valve seal (1f).
See the Parts Drawing, page 7. Clean and inspect
all parts and replace as necessary. Reassemble the
valve, making sure the gasket (1h) is in place.
• To adjust the dispensing valve, drive the pin (1m)
out of the handle (1b) witha 1/8 in. drift pin. Remove
the valve handle (1b) from the stem (1j). See Parts
Drawing, page 7. Turn the adjusting nut (1c) upward
until a small gap (0.040 in maximum) exists between
the handle (1b) and the valve housing (1k) when the
valve is reassembled. Reinstall the handle on the
stem. Reinstall the pin.
NOTE: Clearance between the valve handle (1b) and
the valve housing (1k) is necessary to ensure proper
dispensing valve operation.
• To replace the valve stem (1j), spring (1l) or pack-
ings (1d), remove the valve handle (1b) as
described above. Screw the valve nozzle (1e) off the
valve housing (1k). Remove the gasket (1h). Screw
adjusting nut (1c) off the valve stem. Pull the stem
out through the bottom of the valve housing. See
Parts Drawing, page 7. Clean and inspect all parts
and replace as necessary. Reassemble valve.
Adjust it as described above.
Electronic Meter
See instruction manual 308687 (included).