AMS 28 Slim Gem, Operation And Service Manual

                            L0126J 

 11 

 
Helices 

There are four sizes of helices available, approximately1 ½,  2 
5/8”,  3”, and 4” in diameter. There are several pitches available in 
each size, and is determined by counting the number of product 
openings in the helix. Refer to sections: 
 

CHANGING HELICES

  pg. 

18 

HELIX ADAPTER 

  pg. 

18 

HELIX EJECTOR 

   pg. 

18 

HELIX ALIGNMENT DEVICE

 pg. 19 

MOTOR POSITIONS / HOME

 pg. 19 

Dividers 

The dividers separate product columns on the tray. On snack 
trays, 2 horizontal slots in the divider allow for the installation of a 
candy pusher. To remove the divider, push rearward and lift. To 
install, insert the rear tab in the desired slot, push rearward and 
then down. Make sure the locking tabs on the bottom have 
engaged their respective slots and pull forward. Bottle tray 
dividers are held in place with screws. 
 

Candy Pusher Bar 

The candy pusher bar keeps items pushed to one side of the 
column. This is typically used with tall product. The candy pusher 
bar is removed by pulling the bar free from the plastic clips. To 
reinstall, it is easiest to squeeze the bar into the clip using pliers 
(Refer to 

CANDY PUSHER BAR INSTALLATION

 on page 20).  

ELECTRICAL PANEL 
 

The electrical panel is located in the recess formed by the right 
rail mount on the right side of the cabinet, behind an access 
panel.   

Power Switch 

The power switch is located on the top of the electrical 
compartment near the fuse. The power switch is used to 
disconnect 24VAC power to the control board. 

The power should be shut off when MDB devices are being 

connected or disconnected, when the board is being 

serviced, or before any wiring harness is connected to or 

disconnected from the control board or sensors. 

 
Fuse Holder 

The fuse holder is located on the side of the right rail mount near 
the refrigeration unit power outlet. It contains a 3 amp fast-blow 
fuse to protect the 24 VAC power supply to the control board. A 
spare fuse is stored in the cover. The fuse holder is opened by 
pressing in and down on the indicated side of the cover and 
pulling out.  

Transformer 

The transformer reduces the input voltage to 24 volts AC for the 
control board.  

 
RFI Filter 

The filter removes electrical noise from the power supplied to the 
24VAC transformer to prevent interference with operation of the 
control board and software.  
 

Ballast 

The ballast provides the necessary power to the optional 
fluorescent lamp in the door.  

 
Ground Attachment 

The vendor electrical ground is made through the use of 
grounding studs or screws at the lower back wall of the right rail 
mount. Earth ground and individual ground wires from the high 
voltage components are attached here, 

and should always be 

replaced after service or repair. 
 
 

1.5” HELIX TRAY (OPTIONAL) 
 

The 1.5” Helix Tray is mounted below the bottom snack tray. To 
load the tray with small products such as gum and mints, grasp 
the tray and pull forward to unsnap the catches. After loading, 
push the tray to the rear until the catches snap in place.  
 
The motors in the 1.5” Helix Tray operate in the same way as 
snack or bottle tray motors (Refer to 

OPTIONAL 1.5” HELIX 

TRAY ADJUSTMENT AND LOADING 

on page 20). 

3 VENDOR SYSTEMS AND COMPONENTS