168, 168H, and 68 Series
5
43A8117-BB1199-1 / IL
DU8774-D/DOC
DU8796-D/DOC
Figure 3. Switching Valve Constructions
Page 1: ...e 4 three way snap acting body assemblies can be used alone or to form the valve body portions of 168 or 168H Series switching valves With the addition of the lever knob key 11 figure 4 to a Type 68 1 body assembly a Type 68 2 manual switching valve body assembly is formed Only personnel qualified through training or experience should install operate and maintain these valves If there are any ques...
Page 2: ... metallic 1U878037022 metallic 1U854537022 yellow 1U854537022 yellow 68 1 68 1 68 3 68 3 The 68 Series body assemblies can be installed in any position Position a 168 or 168H Series switching valve so that moisture and other foreign material can not enter either the vent key 17 figure 3 or the small hole in the end of the stem protector key 10 figure 3 When the switch is in service inspect the ven...
Page 3: ...set the unit after it has switched remove the ma chine screws and stem protector keys 11 and 10 fig ure 3 and use a screwdriver to return the trip lever key 2C figure 4 to its normal position With Manual Reset Switch When a manual reset switch see figure 3 is used on a unit in the single pressure trip mode either high or low pressure set point requiring only one adjusting nut the end of the reset ...
Page 4: ...ng screws key 23 and indi cator tag key 24 from the stem protector key 10 2 Remove lever key 20 and pin key 22 from the stem protector Inspect parts and replace as neces sary 3 Insert pin in lever and replace lever in stem protec tor making sure the lever is in the proper position for the trip mode see 168 or 168H Series Manual Reset Operation section 4 Attach the indicator tag to the stem protect...
Page 5: ...168 168H and 68 Series 5 43A8117 B B1199 1 IL DU8774 D DOC DU8796 D DOC Figure 3 Switching Valve Constructions ...
Page 6: ...162 3 Rocker Assembly glass filled nylon with polyurethane valve disks 1U8782 06992 4 Seat Ring SST 2 req d 1U8784 35032 5 Roller Assembly aluminum and SST 1U8786 000A2 6 O Ring nitrile 1U8790 06562 7 Rocker Pin SST 1U8791 49062 8 Machine Screw pl steel 4 req d 10B6186 X012 9 Machine Screw pl steel 4 req d 1A3279 28982 10 Nameplate aluminum 1U8792 X00A2 11 Lever Knob req d w Type 68 2 SST 1U8793 3...
