Deltech Fitness LS2580, LS60 4.9 3" Inlet Switching Valve Maintenance

4 - 12 Maintenance and Repair
4.9 3" Inlet Switching Valve
Maintenance
(Models LS1250 and LS1500)
WARNING!
Ensure that the dryer is de-energized, valve isolated,
and fully depressurized before attempting to remove
or disassemble any dryer component or subassem-
bly. Failure to do so may result in serious personal
injury and/or equipment damage.
Note: Removal of valve body [21] from the dryer manifold
is not required unless replacement of O-rings [23] or valve
body is necessary.
1. Clean and inspect all valve hardware upon disassem-
bly. Replace all software and any hardware which
appears damaged or abnormally worn.
2. Clean and inspect valve seat located inside the valve
body [21]. As previously noted, this can be accom-
plished without removing the valve body [9] from the
dryer manifold.
3. Apply an ultra-thin film of O-ring lubricant to items [3],
[6], [8], [12], [14] and [23] before reassembly.
4. Apply a light coat of lubricant to the sockethead cap
screws, items (1), (20) and (22). Hand tighten screws
until snug. Torque items (1) and (20) to 20 ft-lbs, and
item (22) to 45 ft-lbs.
3" Switching Valve Components
Item Description Total
1 Sockethead Cap Screw 4
2 Valve Cover 1
3 O-Ring 1
4 Bonnet Cylinder 1
5 Locknut 1
6 Piston Seal 1
7 Valve Piston 1
8 O-Ring 3
9 Poppet Shaft 1
10 Rod Seal 4
11 Guide Sleeve 2
12 O-Ring 1
13 Valve Bonnet 1
14 O-Ring 2
15 Rod Scraper 2
16 Valve Poppet 2
17 Poppet Shaft 1
18 Poppet Shaft 1
19 Valve Bonnet 1
20 Sockethead Cap Screw 4
21 Valve Body 1
22 Sockethead Cap Screw 4
23 O-Ring 2