Merco Savory SG-22 D Terminal Block Replacement, A Panel Removal, B Control Switch Replacement

WARNING: DISCONNECT UNIT FROM POWER SOURCE BEFORE ATTEMPTING ANY SERVICE PROCEDURE

General Information: The units covered in this Parts and Service Manual, SG-18, SG-22 and SG-34, are engineered for efficient, dependable service throughout the years. Like any piece of fine equipment with moving parts and broad temperature ranges, physical ware takes its toll. When this happens, the information found in this manual will prove most helpful. Although the instructions are easy to follow, the work should be carried out by a qualified Service Technician.

General Instructions: The following instructions refer to all models in the SG Series hot dog grills. The SG-18 model will vary slightly due to having only one motor, but the parts replace instructions remain essentially the same. The right and left side of the unit is determined by facing the front (control switch) side of the grill. The left side switch controls the front 5 (#1 thru #5) rollers on the grill. The right side switch controls the rear 5 (#6 thru #10) rollers.

3.Press spring loaded tabs on back of light and push through front of panel.

4.Insert new light from front of unit and snap into place.

5.Re-attach wire leads to light terminals. (Refer to appropriate wiring diagram)

D Terminal Block Replacement:

(Figure 4 & 5)

1.Remove bottom panel and appropriate side panel. (Section A)

2.Remove the 2 screws and nuts securing the terminal block to the unit.

3.Disconnect wire leads from terminal block, noting proper orientation.

4.Secure new terminal block to unit with the 2 screws and nuts.

5.Re-attach wire leads to terminal block. (Refer to appropriate wiring diagram)

A Panel Removal:

1.All parts replacement procedures will require the removal of one or both side panels and/or the bottom panel.

2.To remove either side panel; remove the 8 sheet metal screws.

3.To remove the bottom panel; tilt the grill up from the front and rest on the back of the unit. Remove the 6 sheet metal screws. (SG-34 model has 10 screws)

B Control Switch Replacement:

(Figure 1, 4 & 5)

1.Remove bottom panel. (Section A)

2.Remove the 2 slotted screws and spacers securing the switch to the front panel. Note proper orienta- tion of spacers.

3.Disconnect wire leads from switch terminals.

4.Remove switch from underside of unit.

5.Insert new switch from underside of unit and secure with the 2 slotted screws and spacers.

6.Re-attach wire leads to switch terminals. (Refer to appropriate wiring diagram)

CPower Indicator Light Replace- ment:

(Figure 1, 4 & 5)

1.Remove bottom panel. (Section A)

2.Disconnect the wire leads from back of light.

EMotor & Motor Sprocket Replace- ment:

(Figure 2, 3, 4 & 4)

1.Remove bottom panel and appropriate side panel. (Section A)

2.Loosen the 4 motor mounting nuts securing the motor to the unit and slide motor to loosen drive chain tension. Slip drive chain off motor sprocket (and idler sprocket on SG-18 models).

3.Disconnect wire leads from motor terminals.

4.Remove the loosened motor mounting nuts and remove motor.

5.Before installing new motor, transfer the motor fan and sprocket from the old motor to the ne motor. Note proper orientation of fan blades. To remove the motor sprocket from the motor shaft, loosen the set screw in the sprocket with an Allen wrench, and slip sprocket off shaft. Note proper orientation of set screws (on the flat portion of the motor shaft) and the sprocket.

6.Secure new motor (with fan and sprocket in place) to unit with the 4 motor mounting nuts. Do NOT tighten nuts.

7.Place drive chain around motor sprocket (and over idler sprocket on SG-18 models).

8.Slide motor to tighten drive chain tension and tighten the 4 motor mounting nuts.

9.Re-attach wire leads to motor terminals. (Refer to appropriate wiring diagrams)

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