Install Instructions

STEP 2 - Changing the Bellows for Mercury Switch Units (For Snap Switch See STEP 3)

c. Make sure tapped hole on float arm (K) is facing the

correct way, so the float and float rod (C) can be

screwed into it when bellows assembly is assembled

on the head casting. Place gasket (M) on casting (B).

Center the gasket and place the bellows assembly (F)

and switch housing (A) on head casting (B). Insert and

tighten six (6) Torx

screws (E) to 125 in. lbs. (14 N•m).

d. Screw float and float rod (C) into float arm (K) and

hand tighten. Center the float rod in the float rod

guide (not shown) and tighten Torx screw (D) to

125 in. lbs. (14 N•m). Make sure you hold the float

in place while tightening screw (D). Move the float

up and down, making sure there is no binding and

that the float rod is still centered.

b. Take the new bellow assembly (F) and disassemble it

noting the order of the parts. Put sealing washer (J) on

top of float arm (K) and insert into inside of bellows (F).

Place gasket (L) over bellows (F). Insert this assembly

into switch housing (A) and bracket (H). If the screw (D)

was an Allen

screw, the spacer washer (G) will have to

be put in the top hole of bracket (H). Take Torx

screw (D)

(furnished) and insert it into hole on top of bracket (H) and

spacer washer (G) (if needed) and screw into float arm (K).

Hand tighten only.

a. NOTE: On units that have Allen

head screws they should

be replaced with Torx

screws (furnished).

Step 3 - Changing the Bellows for Snap Switch Units

a. Clean out sealant and remove two (2) screws (N)

and bracket (P). Remove (6) Allen

or Torx

screws

(E). Remove switch housing (A) from head casting (B).

The switch bracket (R) will come out with the switch

housing (A). The bellows assembly (F) may stick to

the switch housing (A). Remove bellow assembly (F)

and clean gasket surfaces on both head casting (B)

and switch housing (A).