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7.
MAINTENANCE AND CLEANING
Tool/Material required (one each): open-end wrench, snap-ring pliers, soft brush, o-
ring grease, wooden dowel and Thumb Screw (P/N=TSD1113-28); cleaning agent
recommended: Isopropyl Alcohol or equivalent solvent.
7.1 Thorough Cleaning (See Figure 3.0)
1.
Release fluid pressure at Fluid Reservoir.
2.
Disconnect fluid line and valve air hoses from valve.
3.
Remove Stroke Control Adjustment Knob (19) by rotating it
counterclockwise beyond the "Line Marker;" the knob is loosen as it is
pushed by the Compression Spring.
4.
Remove the Compression Spring (1) and the two Mylar Washers (18) on
each end of the Compression Spring.
5.
Using the open-end wrench to remove the Locking Cap (8) and then pull the
Air Cap (11) out from the Fluid Housing (7).
6.
Using the open-end wrench to remove the Nozzle (9) along with the Spacer
(13); replace O-ring if it is damaged.
7.
Hold Fluid Housing (7) and rotate the Air Cylinder/Needle Assembly (2)
counterclockwise. When completely un-threaded, pull the two valve
segments straight apart to separate.
8.
Using the soft brush to clean Fluid Housing (7), Needle/Piston Assembly (17)
and Nozzle (9) with Isopropyl Alcohol.
9.
If the valve is leaking, using the Thumb Screw (TSD1113-28) to remove the
Seat (10) and replace it with a new one; refer to Section 7.4 "Seat
Replacement" for instructions.
10. Reinstall Nozzle (9), Spacer (13), Air Cap (11) and Locking Cap (8) into
Fluid Housing (7).
11. Lubricate O-ring (6) with grease then reassemble the Air Cylinder/Needle
Assembly (2) into Fluid Housing (7).
12. To reinstall Compression Spring (1) by first placing one Mylar Washer over
the Needle/Piston Assembly (17), then the other Mylar Washer into the
Stroke Control Adjustment Knob (18) and followed by the Compression
Spring.
13. Reinstall the Stroke Control Adjustment Knob (19) by rotating it clockwise
until it stops and then counterclockwise to the desired setting BUT NOT
beyond the "Line Marker" on the knob shaft.
6
7.2 Needle/Piston Assembly and Seal Replacement (See Figure 3.0)
1.
Follow Step# 1-7 in previous section (Section 7.1).
2.
Replace O-ring (6) if damaged.
3.
Remove Cup Seal (14) from Fluid Housing (7).
4.
Use the snap-ring pliers to remove the first Retaining Ring (3).
5.
Pull the Needle/Piston Assembly (17) straight out from the Air Cylinder (2).
6.
Use the Snap-ring pliers to remove the second Retaining Ring (15).
7.
Remove the Nylon Washer (16) and O-ring (5); replace these parts if
damaged.
8.
Reinstall O-ring (5), Nylon Washer (16) and secure with a Retaining Ring
(14).
9.
Reinstall Needle/Piston Assembly (17) and secure with the other Retaining
Ring (3).
10. Reinstall Cup Seal (14) into Fluid Housing (7) using a soft rod (such as a
wooden dowel).
11. Follow Step# 9-13 in previous section (Section 7.1).
1
2
3
4
5
19
18
17
16
7.3 Nozzle and Air Cap Replacement (See Figure 3.0)
1.
Remove Stroke Control Adjustment Knob (19) by rotating it
counterclockwise and beyond the "Line Marker" position.
2.
Remove the Compression Spring (1) and the two Mylar Washers (18) on
each end of the Compression Spring.
3.
Using the open-end wrench to remove the Locking Cap (8) and then pull the
Air Cap (11) out from the Fluid Housing (7).
4.
Using the open-end wrench to remove the old Nozzle (9) and Spacer (13).
5.
Reinstall Spacer (13) and using the open-end wrench to reinstall new Nozzle
(9), make sure the O-ring is on the Nozzle; do not over tighten the Nozzle.
6.
Install new Air Cap (11) and then secure it with the Locking Cap (8).
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7
8
9
10
Figure 3.0
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15
14
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11
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