AG900 and AG900 S Applicators Customer Product Manual - 第37页

AG − 900+ and AG900+S Applicators 33  2009 Nordson Corporation Part 1098464A 7. Unscrew old needle assembly from the piston/cartridge assembly . NOTE: If piston assembly spins − put wrench on wrench flats on top of pist…

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AG−900+ and AG900+S Applicators
32
Part 1098464A
2009 Nordson Corporation
AG900+ Modules
a. See Figure 19. Loosen jam nut (3) on piston shaft and back nut up until against piston
shaft shoulder (4).
2
1
3
4
Figure 19: Piston/Cartridge Assembly and Needle Assembly
1. Piston/cartridge assembly
2. Needle assembly
3. Jam nut
4. Piston shaft shoulder
b. Unscrew the old needle assembly from the piston/cartridge assembly.
AG900+S Modules
a. See Figure 20.Using two 5/16 in. open wrenches, loosen the needle from the cartridge
rod.
2
1
Figure 20: Piston/Cartridge Assembly and Needle Assembly
1. Piston/cartridge assembly 2. Needle assembly
AG−900+ and AG900+S Applicators
33
2009 Nordson Corporation
Part 1098464A
7. Unscrew old needle assembly from the piston/cartridge
assembly.
NOTE: If piston assembly spins − put wrench on
wrench flats on top of piston.
Assembly
1. Install the needle assembly onto the new piston/cartridge
assembly. Turn until the needle nut bottoms out against
the end of the piston shaft shoulder.
NOTE: If the piston shaft is not fully seated inside the
needle assembly, the piston/cartridge assembly with the
needle assembly will not properly seat in the applicator
module and nozzle, resulting in adhesive leaking
.
2. AG900+ Module: See Figure 21. Install the new needle
assembly onto the piston/cartridge assembly. Turn until
the needle bottoms out against the end of the piston shaft.
Tighten jam nut.
AG900+S Module: See Figure 20. Install the new needle
assembly onto the piston/cartridge assembly. Turn until
the needle bottoms out against the end of the piston shaft.
Figure 21: Piston/Cartridge
Assembly and Needle
Assembly
1. Piston/cartridge assembly
2. Needle Assembly
3. Jam nut
3. Clean applicator module bore.
4. Apply o-ring lubricant to the module bore inside the applicator module body.
CAUTION! Apply o-ring lubricant to module body bore ONLY. Lubricating o-rings
directly or individual components causes back-up rings to become dislodged
when module is assembled.
5. Install piston/cartridge assembly into applicator module body. Carefully press on top of
the cartridge to properly engage cartridge o-rings into the module body bore.
NOTE: You will hear a small pop when the assembly seats in the module body.
2
3
Bottomed
out against
Piston Shaft
1
AG900+
AG−900+ and AG900+S Applicators
34
Part 1098464A
2009 Nordson Corporation
Assembly (contd)
Applicator
Module
Body
Piston/Cartridge
Assembly
Figure 22: Installing Piston/Cartridge with Needle Assembly
6. See Figure 23. Install new large o-ring (9) on top of piston cartridge.
7.
Re-install spring(3) and cap (2). Insert two of the four socket head screws (1) in
opposite corners of the cap. Depress the cap and hand-tighten the two
screws. Insert the remaining screws into the cap and tighten all four screws to
7−8 ft.lbs.
8. Install new o-ring (5) and back−up ring (8) onto nozzle flange (6).
9. Re-install nozzle flange (6) onto applicator module body (4). Insert two of the four socket
head screws in opposite corners of the flange. Hold the flange in place and hand-tighten
the two screws. Insert the remaining screws into the flange and tighten all four screws to
7−8 ft.lbs.
10. If module was removed from the regulator or applicator body adapter, place small
amount of o-ring lubricant on new o-ring and install o-ring in groove on back of module
body.
11. Attache the applicator module to the regulator or applicator adapter body. Insert
guide pins into the mating holes for proper alignment.
12. Apply Never Seez lubricant to the two socket head mounting screws. Install the two
socket head mounting screws into the applicator body and tighten.