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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
RT-2VSE/VSHO Service Manual
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
RT-2VSE SCHEMATIC
RT-2VSHO SCHEMATIC
8
RT-2VSE/VSHO Service Manual
Download from Www.Somanuals.com. All Manuals Search And Download.
This page intentionally left blank.
RT-2VSE/VSHO Service Manual
9
Download from Www.Somanuals.com. All Manuals Search And Download.
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
RT-2VSE/VSHO Service Manual
Download from Www.Somanuals.com. All Manuals Search And Download.
EXPLODED VIEW
RT-2VSE/VSHO Service Manual
11
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
|