Stearns 1-056-X00 manual AIR GAP Adjustment, Coil Replacement Series, Vertical Spring Assembly

AIR GAP ADJUSTMENT 1-056-X00

As friction disc wear the air gap will increase. When plunger gets to the reset position, the air gap must be adjusted.

￿		To increase air gap, turn both adjusting screws (10) counterclockwise. Use					To decrease air gap, turn both adjusting
		3/16 hex wrench, or flat screwdriver on older models.					￿ screws (10) clockwise.
	56,X00 Series Air Gap* (REV A & B)
	Torqu		e	Min/Max
	Disc		Torque
	1		1.5, 3 & 6	.38” ± .69”
	2		10 & 15	.45” ± .69”
	3		20 & 25	.50” ± .69”				clockwise
				*±.30”
	56,X00 Series Air Gap* (REV C)
	Disc		Torque	Min/Max
	2		3, 6,	.45” ± .69”				3/16 hex wrench
					3/16 hex wrench
			10 & 15		counter-clockwise
	3		20 & 25	.50” ± .69”
						Maximum gap should never exceed .69”
				*±.30”

COIL REPLACEMENT SERIES 1-056-X00

Remove housing and disconnect power and wiring to coil.

￿	Insert screwdriver between support	Lift plunger/solenoid	￿
	plate and lever arm and pry forward.	￿ lever assembly		Remove plunger guide.
		out of coil.

￿		￿			￿
	Discard coil.		A) Insert new	coil. (Lead wires		A) Re-insert plunger into coil; drop
			in same position as old coil.)			pivot pin into cradle of support plate.
			B) Insert plunger guide.			B) Remove screwdriver.
						A
			B				B
			A

Reconnect coil and replace housing per installation instructions, page 2.

VERTICAL SPRING ASSEMBLY 1-056-X00

Vertical Brake Assembly

Single disc brakes (1.5, 3 & 6 lb-ft) are universal mount and do not require separator springs. Double disc brakes

(10-15 lb-ft.) are universal mount but require separator springs which are preassembled to the stationary disc. These discs are inserted spring first into the brake.

Refer to figure 5A below.

Figure 5A

Installation Procedure for 20 and 25 lb-ft brakes if mounted vertical to motor shaft (These brakes are

factory assembled for horizontal operation.) Remove support plate by loosening the three mounting screws.

Remove stationary discs and friction discs. Using the spring kit provided with this brake, insert three springs of identical color into each stationary disc hole. Springs are inserted from the side opposite the indent mark (see Figure 5B). Stationary disc should be placed on a clean flat surface with a clearance hole to allow the tip of the spring to extend through the bottom side of the stationary plate. Using the 1/8” pin provided and a hammer, drive the spring until the large coil diameter bottoms out against the disc.

Reassemble the disc pack with the stationary discs in the proper arrangement shown in Figure 5C.

Mount support plate and torque screws evenly to 55 lb-in.

Figure 5B

Figure 5C

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