Merco Savory Toaster RT 2VSE User Manual

PARTS & SERVICE MANUAL  
for  
RT-2VSE & RT-2VSHO  
TOASTER  
Model RT-2VSE  
The information found in this manual will prove very helpful. Although the instructions are easy to  
follow, all repair procedures should be carried out by a qualified Merco Savory Certified Service  
Representative.  
THIS MANUAL SHOULD BE RETAINED FOR FUTURE USE  
RT2VSEsvcmanual  
REV: 7/13/07  
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H – GEAR MOTOR  
J – DRIVE (MOTOR) SPROCKET  
1. With outer case removed, disconnect motor  
leads from on/off switch and terminal block and  
cut wire ties at floor panel.  
1. With outer case removed and drive chain  
removed, loosen the set screw on sprocket with a  
¼” allen wrench and remove sprocket.  
2. Install new sprocket on motor shaft making sure  
allen screw rests on the flat of the shaft.  
3. Replace drive chain.  
2. Remove the 2 retaining bolts from the underside  
of the unit.  
3. Remove the drive chain and lift out motor.  
4. Separate motor from motor mounting bracket by  
removing the 4 slotted screws on the bracket.  
5. Using a 1/16” allen wrench, remove the drive  
sprocket from the motor shaft.  
6. Attach new gear motor to motor mounting  
bracket.  
7. Install drive sprocket on motor shaft making  
sure the Allen screw rests on the flat of the  
shaft. Do not tighten set screw.  
K – REAR (CONVEYOR) SHAFT SPROCKET  
1. With outer case removed and drive chain  
removed, loosen the two set screws on sprocket  
with a 1/16” allen wrench and remove sprocket.  
2. Install new sprocket on conveyor shaft aligning  
the two set screws with the holes on the shaft.  
3. Replace drive chain.  
8. Install new motor with bracket attached. DO  
NOT tighten remaining bolts.  
9. Replace drive chain over sprockets.  
10. Slide motor to right until drive chain is taut.  
There should be approximately ¼” play in the  
drive chain.  
11. Check drive chain alignment. Tighten drive  
sprocket set screws.  
12. Reattach motor leads to on/off switch and  
conveyor speed control. (Refer to appropriate  
wiring diagram.)  
I – DRIVE CHAIN  
1. With outer case removed, loosen the two motor  
mounting bracket retaining bolts on underside of  
unit, but DO NOT remove.  
2. Slide motor to the left to loosen drive chain  
tension.  
3. Remove drive chain.  
4. Install new chain over sprockets with open  
looped side of chain facing out.  
5. Slide motor to right to tighten drive chain  
tension. There should be approximately ¼” play  
in the drive chain.  
6. Check for proper drive chain alignment (See  
figures 6 and 7).  
7. Tighten motor mounting bracket retaining bolts  
on underside of unit.  
RT-2VSE/VSHO Service Manual  
3
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L – CONVEYOR CHAIN  
Figure 8  
1. With outer case removed, loosen motor  
mounting bracket retaining bolts on underside of  
unit and slide motor to the left.  
7. Push back on rear shaft assembly until excess  
slack is removed from chain. Holding tension,  
tighten both the rear shaft adjusting brackets  
and bearing retaining brackets on both sides of  
unit.  
8. Check for proper tension. There should be  
approximately ” to ¾” space between the  
conveyor chain and the ledge on the inside of  
the unit cavity.  
9. Slide motor to the right to tighten drive chain  
tension. There should be approximately ¼” play  
in the drive chain.  
10. Tighten motor mounting bracket retaining bolts  
on underside of unit.  
2. Loosen rear shaft adjusting bracket nuts and  
bearing retaining bracket nuts on both sides of  
unit.  
3. Slide rear conveyor shaft forward to loosen the  
tension.  
4. Separate the chain at any link and slide out from  
front of unit.  
5. Before installing new chain, check for proper  
orientation (see Figure 8) and correct number of  
links.  
6. Starting at front of unit, slide chain under front  
shaft and push towards rear of unit. Bring chain  
up and over rear shaft assembly and pull  
towards front. Connect links. CAUTION: MAKE  
SURE CHAIN IS NOT INSTALLED AT AN  
ANGLE.  
Spacer Nuts  
Rear Shaft  
Assembly  
Spacer Nuts  
Bearing  
Retainer  
Wire Belt  
Tension Adjusting  
Bracket  
Front Shaft  
Assembly  
Bearing  
Bearing  
Retainer  
Front Spacer  
4
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M – FRONT & REAR SHAFT BEARINGS  
Figure 8  
1. Remove outer case and conveyor chain.  
2. To remove front shaft bearings: first, remove the  
bearing retainers on both sides of the unit.  
3. With retainers removed, slide bearing out (with  
shaft, if necessary). Note proper location of the  
spacer washers on the front bearing retainer  
studs.  
4. Replace bearings (and front shaft, if necessary).  
5. To remove rear shaft bearings: remove drive  
chain and conveyor shaft sprocket.  
6. Remove bearing retainer brackets at both sides  
of unit and slide bearings out. Shaft can be  
replaced at this time, if needed. Note proper  
orientation of hex head spacers.  
7. Replace bearings (and rear shaft, if necessary),  
shaft sprockets and drive chain.  
8. Replace conveyor chain.  
RT-2VSE/VSHO Service Manual  
5
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PROBLEM  
POSSIBLE CAUSES  
SUGGESTED REMEDIES  
1. Check voltage at receptacle. Check that  
voltage conforms to Savory specifications  
on unit data plate.  
1. Defective or improper electrical  
outlet.  
No heat, conveyor belt  
doesn’t run  
2. Check plug and line cord. Replace if  
necessary.  
2. Defective plug or line cord  
3. Defective on/off switch  
3. Replace switch.  
1. Defective heating elements  
1. Replace elements  
2. Check wiring and terminal block for  
improper connections or defects. Refer to  
wiring diagram.  
Unit fails to heat  
2. Defective, loose or improper  
wiring or terminal block.  
1. Turn unit on and set heat at #9. Observe  
elements after a 15-minute warm-up period.  
Replace any element that does not glow.  
1. Defective heating elements  
Insufficient heat or no heat  
from upper or lower  
heaters  
2. Check wiring and terminal block for  
improper connections or defects. Refer to  
wiring diagram.  
2. Defective or improper wiring or  
terminal block  
Conveyor belt is  
excessively noisy and/or  
does not run smoothly  
1. Worn shaft bearing(s)  
1. Replace bearing(s)  
2. Incorrect conveyor belt tension  
2. Adjust tension  
3. Incorrect alignment of drive  
chain, gear motor, or sprockets  
3. Adjust alignments  
4. Worn sprockets and/or drive  
chain  
4. Replace sprockets and/or drive chain  
1. Misaligned or bent motor fan  
blade.  
1. Check for proper alignment of fan blade.  
Adjust or replace if necessary.  
Conveyor belt does not run  
2. Connect AC voltmeter to gear motor  
terminals. Rotate speed control to  
maximum. Meter reading of 208/240V  
indicates problem is NOT items (a) through  
(d). Replace gear motor. If reading of  
208/240V is not obtained, check in  
sequence starting with item (a) until defect  
is isolated. Replace any defective  
components. Refer to wiring diagrams.  
Check all connections.  
2. Defect in one or more of the  
following:  
a. wiring  
b. terminal block  
c. speed control  
d. gear motor  
e. conveyor on/off switch  
6
RT-2VSE/VSHO Service Manual  
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PROBLEM  
POSSIBLE CAUSES  
SUGGESTED REMEDIES  
Cannot regulate speed of  
conveyor belt  
1. Defective speed control  
1. Replace speed control  
1. Loose sprocket(s)  
1. Tighten sprocket(s)  
2. Replace drive chain  
3. Adjust drive chain  
Gear motor runs but  
conveyor belt slips or  
doesn’t run  
2. Broken drive chain  
3. Disengaged drive chain  
Cannot adjust heat for bun  
toasting (For buns, only  
the upper heaters should  
function  
1. Defective bun/toast switch  
1. Replace switch  
RT-2VSE/VSHO Service Manual  
7
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RT-2VSE SCHEMATIC  
RT-2VSHO SCHEMATIC  
8
RT-2VSE/VSHO Service Manual  
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RT-2VSE/VSHO Service Manual  
9
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PARTS LIST  
RT-2VSE (208/240V)  
DESCRIPTION  
LETTER  
PART #  
12542  
18026  
18027  
18028  
18039  
18040  
18041  
12381  
12508  
12548  
12551  
21319  
12412  
69787  
22743  
21858  
21842  
68117  
18209  
18197  
22754  
12533  
12549  
12219  
12534  
12543  
12668  
21219  
21849  
22178  
30042  
B
Reflector Tray  
Element – 300W 104V, Upper (208V)  
Element – 300W 110V, Upper (220V)  
Element – 300W 120V, Upper (240V)  
Element – 335W 104V, Lower (208V)  
Element – 335W 110V, Lower (220V)  
Element – 335W 120V, Lower (240V)  
Bearing Retainer  
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
Tension Adjusting Bracket  
Rear Shaft Assembly  
Wire Conveyor Belt, S.S.  
32T Sprocket Assembly  
Drive Chain (55 links)  
12T Sprocket Assembly  
Gear Motor Assembly (208/240V)  
Terminal Block  
Speed Control  
Bun/Toast Switch – Toggle  
On/Off Switch  
Control Panel  
Bearings  
Front Spacer  
Front Shaft Assembly  
Trim, Left Side  
Not Shown  
Not Shown  
Not Shown  
Not Shown  
Not Shown  
Not Shown  
Not Shown  
Not Shown  
Rear Spacers  
Front Shelf  
Legs, 1” Plastic Adjustable  
Cordset 208/220/240V, NEMA 6-20P  
Gear Motor Mounting Bracket  
Insulator, Ceramic Stand Off  
Savory Lubricant  
RT-2VSHO (208/240V)  
(All parts are the same as above except the following)  
LETTER  
PART #  
12530  
18039  
18040  
18041  
21448  
21221  
DESCRIPTION  
Case Cover, RT-2VSHO  
Element – 335W 104V (208V)  
Element – 335W 110V (220V)  
Element – 335W 120V (240V)  
16T Sprocket Assembly  
A
C
J
Not Shown  
Cordset – 208/220/240V, NEMA 6-30P  
10  
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EXPLODED VIEW  
RT-2VSE/VSHO Service Manual  
11  
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Merco Savory, LLC  
1111 North Hadley Road  
Fort Wayne, Indiana 46804  
United States of America  
Telephone: (260) 459-8200  
Facsimile: (260) 436-0735  
Service Hotline: (800) 678-9511  
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