efd 741md-ss 사용자 가이드
O-ring #7806
Retaining
washer
#7807
washer
#7807
Packing spring
#7808
#7808
Needle packing assembly
#7810
#7810
O-ring #4049
Inlet fitting
#79005
#79005
(2) Body mounting
screws HW6-32X1
screws HW6-32X1
Fluid body
#7430-SS (stainless steel)
#7430-SS (stainless steel)
Nye gel lubricant, 1 gram
foil packet (not shown)
#H-147-P
foil packet (not shown)
#H-147-P
Retaining nut only
#7405-NUT
#7405-NUT
O-ring
#5148RV
#5148RV
Tip adapter with
retaining nut #7419
retaining nut #7419
2
1
3
6
7
Valve maintenance
To thoroughly clean the fluid body and
replace needle packings:
replace needle packings:
1. Remove inlet fitting and tip adapter.
2. Remove fluid body from air cylinder body,
then remove O-ring.
3. Use tool #7803 to remove needle
packings from fluid body.
4. Remove any remaining packings and
spring from needle.
5. Clean needle with cloth dampened in
solvent and lubricate with Nye Lubricant
#865 gel included in the General
Maintenance Kit. Lubricate and reinstall
the needle packing assembly.
#865 gel included in the General
Maintenance Kit. Lubricate and reinstall
the needle packing assembly.
6. Install new, lubricated O-ring
on fluid body. Then install
chamber into air cylinder
body.
chamber into air cylinder
body.
7. Turn the fluid body to posi-
tion fluid inlet hole in the
desired location. Install and
tighten body mounting
screws (2). Torque to 14
inch pounds (1.58 Nm).
desired location. Install and
tighten body mounting
screws (2). Torque to 14
inch pounds (1.58 Nm).
8. Reinstall tip adapter/seat
assembly.
Valve Disassembly and
Reassembly Procedures
Reassembly Procedures
CAUTION: To prevent damage, the valve
must be disassembled starting at the fluid
outlet end of the valve.
must be disassembled starting at the fluid
outlet end of the valve.
www.efd-inc.com info@efd-inc.com
USA 800-556-3484 Europe +44 (0) 1582 666334 Asia +86 (21) 5854 2345
Sales and service of EFD dispensing systems are available worldwide.