Leonard TMS-25 - Instructions for Dismantling Valve; To Clean Port Sleeve Assembly; To Replace Pointer Rod with Gear; To Replace (or Clean) Thermostat Group

INSTRUCTIONS FOR
DISMANTLING VALVE
1. Shut off Steam and Cold supplies to valve.
2. Loosen LTR set screw.
3. Remove SNAP CAP, SCREW and WASHER, POINTER and FRICTION
SPRING. (FIGURE #1).
WHEN RE-ASSEMBLING VALVE, insert new Flange Packing in base; replace
COVER, tightening COVER SCREWS in rotation; put FRICTION SPRING in
place; then replace POINTER and POINTER ROD SCREW, WASHER and CAP.
After installing new parts, it will be necessary to reset Pointer to obtain correct
temperature range from Cold to Hot. See page 2 instructions "TO RESET
ADJUSTABLE HIGH TEMPERATURE LIMIT STOP."
TO CLEAN PORT SLEEVE ASSEMBLY
Failure to properly blend the water may be caused by a sticking condition in the
PORT SLEEVE ASSEMBLY. The THIMBLE should slide freely on the PORT
SLEEVE.
1. If a deposit of lime or sediment prevents free movement, use a nail set or other
tapered tool to unscrew the CHECK NUT as far as it will go, then screw the PORT
SLEEVE NUT into the base. This will release the PORT SLEEVE and THIMBLE
so they can be lifted out, (Figure #2).
2. Clean with a NON-CORROSIVE CLEANING AGENT AND SOFT CLOTH - DO
NOT USE ABRASIVES - then wash parts thoroughly, wipe with a dry cloth and
re-assemble. The PORT SLEEVE should be assembled with the SHOULDER to
the LEFT. Tighten PORT SLEEVE NUT against end of PORT SLEEVE but be
careful not to cramp sleeve in place. Tighten CHECK NUT.
3. When replacing front be sure DRIVING BALL is inserted in Ball Socket as shown
in Figure #1.
TO REPLACE POINTER ROD WITH GEAR
1. Loosen LTR set screw. Remove POINTER ROD SNAP CAP, SCREW,
WASHER, POINTER, and FRICTION SPRING. (FIGURE #1)
2. Remove COVER with parts attached, from the front of valve.
3. Remove COIL SLEEVE STUD and take off THERMOSTAT GROUP.
4. Replace POINTER ROD with GEAR and re-assemble.
TO REPLACE (OR CLEAN) THERMOSTAT
GROUP
Follow instruction for replacing POINTER ROD with GEAR above. If a
deposit has collected on the Thermostatic Coil, clean it off with a brush in a
non-corrosive grit-free cleaning solution.
SLEEVE
PORT
PORT
SLEEVE
NUT
CHECK
NUT
POINTER
ROD WITH
2.
GEAR
THIMBLE
PACKING
FLANGE
STUD
COIL SLEEVE
POINTER
1.
BALL
DRIVING
BALL
SOCKET
SET SCREW
LTR
REMEMBER! THIS IS A CONTROL DEVICE WHICH MUST BE CLEANED AND
MAINTAINED ON A REGULAR BASIS. (SEE MAINTENANCE GUIDE AND
RECORD, MGR-1000).
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