Revent 724 Service Manual
Module: 1 OVEN BODY
Description: Sheet metal panels
Number: 603-1-001
Page:
1(1)
This instruction is for ovens with serial numbers from 94.xxxx.xxx to present
Trouble
An exterior wall panel is
damaged.
Suggested Measures
Remove the self-tapping screws along the underside of
the damaged panel(s) and on the roof strip(s) above the
damaged panel(s). The roof strips are attached to the
upper frames with rivet part no. 50622701
When changing the panel(s), be sure that the insulation
material is not moved out of position.
The upper part of the panel should be kept in position
against the frame only by the roof strip.
WARNING: To avoid buckling of panel, do not attach
the upper lip of the panel to the frame (w
rivets)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: June 06, 1997
Signed:
Special
tools
needed
Drilling
machine.
4.8
(3/16”) mm
drill-bit
8 mm
(5/16”)
wrench
rivet pliers
ith screws or
Module: 1. OVEN BODY
Description: Gaskets
Number: 603-1-002
Page:
1(1)
SERVICE
INSTRUCTION
603
Issued by: PM
Approved by: TH
Issue date: Oct 1, 2004
Signed:
This instruction is for ovens with serial numbers from YY.XXXX.ZZ to present.
Trouble
Fume leakage from the
joints between the
heating and baking
sections and/or front and
rear baking section.
Suggested Measures
If fume leakage is confirmed (it may be difficult to find
the exact location) between the heating and baking
sections
and/or the front and rear baking section, the leak should
be sealed with Revent silicone glue, part no. 50217401
(#50222801 US ovens).
In case of leakage where no leak can be located, the
oven must be divided and the joints cleaned from the
attached sealing material for resealing.
New sealing material must be applied as described in
the chapter "Assembling instructions"
WARNING: Fume leakage for an extended period of
time, will start the rust process between the outer and
inner oven body.
Special tools
needed
Gun for
silicone glue
tubes, part
no.
50159600
Module: 2. DOOR ASSEMBLY
Description: Door locking
Number: 603-2-001
Page:
1(1)
SERVICE
INSTRUCTION
603
Issued by: PM
Approved by: TH
Issue date: Oct 1, 2004
Signed:
This instruction is for ovens with serial numbers from YY.XXXX.ZZ to present.
Trouble
The door handle side of
the door is not closing
tight against the door
seal.
Suggested Measures
1) The ball bearing, part no. 50197601 on the locking
bracket, has to be readjusted.
2) The locking lid in the latch assy, part no. 41276190
is worn out. The latch assy has to be replaced. If the
latch assy has to be replaced, the door handle must
first be removed. The square steel may be difficult
to remove from the latch assy. In that case the
square steel should be cut from the inside of the
latch assy.
If the latch assy has to be replaced, it is advisable to
be equipped with a spare square steel (part no.
50108002) and pin (part no. 50108003).
Apply some graphite grease on the square steel
before remounting the door handle.
Special tools
needed
Universal
saw with a
"stiletto" saw
blade.
Mandrel 4
mm (0,16”)
Module: 2 DOOR ASSEMBLY
Description: Door glass
Number: 603-2-002
Page: 1(1)
This instruction is for ovens with serial numbers from 96.2432.431 to present.
Trouble
The door glass is broken. Remove the door from the oven to be able to effectively
Suggested Measures
replace the broken glass. Set the door face up so that it
rests in a level (horizontal) position.
Remove the lamp cover, the fluorescent lamp, the lamp
holders on the right and the cover on the left side of the
window.
Remove the upper and lower cover strips. These strips
are glued and riveted against the door frame and they
will probably be damaged during the disassembly
caused by the glue.
Clean the door glass bracket from glue and glass
pieces.
Apply silicone glue, part no. 50217401, on the bracket
and replace the new glass. Remount the cover strips,
part no. 40899601. Use silicone glue, part
no.50217401, and rivets, part no. 50622701.
It is advisable to use new cover strips part no.
40899601.
Carefully remove the silicone glue surplus on the glass
as long as it is soft.
IMPORTANT:
Confirm that the glass is installed correctly (not back to
front or upside down). Do this by reading the warning
sign written on the glass.
SERVICE
INSTRUCTION
603
Issued by: PM
Approved by: TH
Issue date: May 18, 2005
Signed:
Special tools
needed
Gun for
silicone glue
tubes, part
no.
50159600.
Module: 2. DOOR ASSEMBLY
Description: Door handle
Number: 603-2-003
Page:
1(1)
SERVICE
INSTRUCTION
603
Issued by: PM
Approved by: TH
Issue date: Jan 19, 2005
Signed:
This instruction is for ovens with serial numbers from YY.XXXX.ZZ to present.
Trouble
The door handle will not
stay in horizontal position
when the door is opened.
The door handle is
wobbling in the door
handle frame.
The door handle comes
loose from the door
handle frame.
Suggested Measures
The door handle assy, part no. 31169690, or possibly
the bushing, part no. 50108004, inside the door handle
frame needs to be replaced.
The pin, part no. 50108003, placed through the square
steel which holds the door handle against the frame
needs to be replaced.
If the door handle is difficult to remove from the latch
assy, please refer to instructions in this manual, section
no. 603-2-001, A door locking@.
Special tools
needed
Mandrel 4
mm (0,16”)
Mandrel 4
mm (0,16”)
Module: 2. DOOR ASSEMBLY
Description: Door hinge
Number: 603-2-004
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Trouble
The door hinge side of
the door is not closing
tight against the door
seal.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
Suggested Measures
The hinge bushings, part no. 50196001, in the hinge
upper and lower frame part should be replaced.
Proceed as follows, same procedure to replace both
upper and lower bushings:
• Let oven door stay in locked position
• Dismount ceiling in canopy
• Dismount cover plate on RH side of door
• Loosen the screws holding the lower part of
hinge to the oven body
• Pull down hinge part
• Press out old bushing
• Press in a new bushing
• Remount removed parts
Special tools
needed
Module: 2. DOOR ASSEMBLY
Description: Door seal
Number: 603-2-005
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to 92.0332.010.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to 92.0532.015.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
Trouble
Fumes are leaking from
between the door and
door frame.
This instruction is for 603 ovens with serial numbers from 93.0332.078 to present.
This instruction is for 605 ovens with serial numbers from 92.0532.016 to present.
Trouble Suggested Measures Special tools
Fumes are leaking from
between the door and
door frame.
Fumes are leaking from
the bottom of the door.
Suggested Measures
The door seal, 5 m (16,4’) of part no. 50110700, is worn
out and needs to be replaced.
The door seal, 5 m (16,4’) of part no. 50201001, is worn
out and needs to be replaced.
The surface where the gasket is to be mounted has to
be cleaned with detergentto remove old glue and gasket.
The seal, part no. 40613102, on the under side of the
door has to be adjusted or, if worn out, replaced.
Special tools
needed
Silicone glue,
part no.
50217401.
Gun, part no.
50159600.
needed
Silicone glue,
part no.
50217401.
Gun, part no.
50159600.
Module: 3. FAN SYSTEM
Description: Fan shaft v-sealing
Number: 603-3-001
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Trouble
Steam is leaking from the
oven chamber, through
the fan device unit.
Noise is coming from the
fan device unit.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: June 06, 1997
Signed:
Suggested Measures
Remove the air duct panel on the left side in the baking
section covering the heat exchanger.
Make a mark of how the fan inlet cone is placed before
removing it. This to be sure to reinstall it in the correct
position.
Remove the v-belts
Take the fan wheel off the fan shaft.
Remove the fan shaft assembly from the fan cover and
replace the v-seal, part no.50140304.
Reinstall fan shaft assembly, the fan wheel, air duct
panel and the V-belts .
Check the above v-seal.
Refer also to section no. 605-3-002 in this manual.
Special tools
needed
Pulley drag
(mechanical
push-puller)
Module: 3. FAN SYSTEM
Description: Bearings
Number: 603-3-002
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Trouble
Noise is coming from the
fan device unit.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
Suggested Measures
Check the roll and ball bearing in the fan shaft assembly
For dismantling the fan assy, please refer to section
605-3-001 A fan device v-sealing in this manual.
Check the grease level in the bearing housing.
Special tools
needed
Pulley drag
(mechanical
push-pulley)
Module: 3. FAN SYSTEM
Description: Fan motor
Number: 603-3-003
Page:
1(1)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
This instruction is for 603/605 ovens with serial numbers from 94.xxxx.xxx to present.
Trouble
The oven fan does not
start.
Noise is coming from the
top of the motor
Suggested Measures
1. The oven door is not closed.
2. The steam cycle is on.
3. The motor circuit breaker has tripped and has to
be reset (14). If the overload trips repeatedly,
call for service.
4. On oil and gas ovens, the burner stops when the
high limit switch has tripped. If the high limit trips
repeatedly, call for service.
5. The limit switch for the oven door is not working
properly and should be adjusted or replaced.
6. Check the voltage on terminals P6/31 and P6/30.
It should read 0 volt if the oven door is closed
and the limit switch is activated. It should read
12 volt if the door is open or the limit switch is
not activated.
7. The motor contactor is defective and should be
replaced.
8. Check if the terminals A1-A2 on the motor
contactor are energized. Always check against
neutral.
9. Check the motor Voltage/Amp. per phase. With
repeated tripping of the motor circuit breaker the
motor voltage/amp. per phase should be
checked.
10. The motor is defective and should be replaced.
Remove the motor canopy and check if the motor
cooling disc is loose from
broken.
the shaft (look for cracks) or is
Special tools
needed
Module: 3. FAN SYSTEM
Description: Fan Wheel
Number: 603-3-004
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460(1978) to present.
Trouble
Vibrations in the fan
wheel device.
SERVICE
INSTRUCTION
603/605
Suggested Measures
Check for damage and/or if the fan wheel is out of
balance.
Issued by: PM
Approved by: TH
Issue date: June 06, 1997
Signed:
Special tools
needed
Pulley drag
(mechanical
push-pulley)
Module: 4. AIR DISTRIBUTION
Description: Adjusting the air
distribution panel
Number: 603-4-001
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Trouble
Uneven baking
Issued by: PM
SERVICE
INSTRUCTION
603/605
Approved by: TH
Issue date: June 09, 1997
Signed:
Suggested Measures
HEAT BALANCING
Before re-adjusting the heat distribution, check that the
original setting is correct. Refer to the Abaking setting
report@ located in the instruction handbook delivered
with the oven.
Also before adjusting, check that the rack configuration
is correct. There should be a minimum distance of 190
mm from the floor to the bottom of the first tray. There
should also be a minimum clearance distance between
the top of the finished baked product on each tray and
the tray which is placed directly above. Refer to the
Revent dealers guide, section 4 for more information
about rack configuration requirements.
NOTE: It is better to decrease than increase the hole
diameters of the air distribution w
See procedures on following pages
all
Special tools
needed
Measuring
gauge
Module: 4. AIR DISTRIBUTION
Description: Adjusting the air
distribution panel
Number: 603-4-001
Page:
2(2)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Uneven baking
adjustment procedures
Issued by: PM
SERVICE
INSTRUCTION
603/605
Approved by: TH
Issue date: June 09, 1997
Signed:
Procedure:
1) Start by baking a complete rack load of the same
shaped bread.
2) Record the baking results on the rack diagram of the
test report form under the heading " Before adjusting".
Start with the bottom tray of the rack and work
upwards. If two trays are baked side by side, it is
considered as one large tray.
a) If the baking results are perfect, record this by
marking a "0" in the middle of the line which
corresponds to the respective tray.
b) If the baked goods on the tray are too light in the
centre of the tray, record this by marking "-" in the
middle of the line. If it is too light on an edge of a
tray, mark a "-" on the applicable side of the line
corresponding to the respective tray. If the baking
results are very light, mark"--".
c) If the baked goods on the tray are too dark, record
this by marking a "+" in the same manner as
above.
d) The markings as described in points b and c can
be combined.
MARKINGS: 0 = perfect bake
= baked goods are too light
-
-- = baked goods are very light
+ = baked goods are too dark
++ = baked goods are very dark
Module: 4. AIR DISTRIBUTION
Description: Adjusting the air
distribution panel
Number: 603-4-001
Page:
3(3)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
3) Always make the first adjustment by increasing or decreasing 1
mm. In this way it is possible to go back half way if necessary.
A suitable measuring gauge is a drill-bit shaft.
If the bread is too light, the heat transfer should be increased.
This is achieved by increasing the openings of the air
distribution panel. If the bread is too dark, the heat transfer
should be decreased. This is achieved by decreasing the size
of the openings.
a) Look at the results of your test report to see which tray(s)
needs adjusting. Determine if the change is needed in the
centre or on a tray edge.
b) Measure the height from the floor to the lower edge of this
particular tray in the rack.
c) Mark off this height on the air distribution panel.
d) Increase or decrease the opening on the panel plate which
lies just under the mark on the wall (due to upward air flow).
The air flow from the right and left row of the air distribution wall
should be directed to the centre of the baking chamber at an angle
of 70°.
Note! Before adjusting, measure the existing opening and make a
note of it. The air direction from the air distribution wall is directed
upwards. Because of this, the adjustment must be on a lower level
than the marked tray. The air generally blows upward at an angle
of 70°.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: June 09, 1997
Signed:
e) Register the new values in the test report.
Special training in baking adjustments is available at the Revent
factory. Contact the marketing and sales department to organize a
training session if desired.
pp
Module: 5. HEATING SYSTEM
Description: Burner
Number: 603-5-001
Page:
1(1)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
This instruction is for 605 ovens with serial numbers from 94.xxxx.xxx to present.
Trouble
B urner maintenance.
The burner does not
start.
Suggested Measures
WARNING!
1. Only allow a REVENT AUTHORIZED
SERVICE COMPANY to adjust the burner.
Special instruments and training are
required.
2. Any modifications of the burner will void
arranty and will invalidate Safety Agency
w
Certification.
3. Damage to ignition control could result in
fatal accidents. Do not attempt to repair or
disassemble the ignition control. Ignition
control that has been w
4. Calling for burner service and maintenance
of safety
responsibility of the owner/operator.
5. It is required that the burner is checked
once a y
manufacturer.
6. For maintenance and service of the burner
follow
manual.
devices in this oven is the sole
ear by a representative of the
the instructions in the burner
1. Check that the oven main switch is on.
2. On electric heated ovens, the circuit breaker
fuse for the instrument control panel should be
checked.
3. Check that the oven door is closed. If it is not,
the green light at the right side of the start
button should be flashing.
4. Check if red light between set point and actual
temperature is lit.
5. The temperature limit control has tripped and
should be reset.
6. The burner has tripped and should be reset.
The procedure for resetting the burner varies
depending on manufacturer, follow instructions
in the burner manual.
7. The control fuse or the circuit breaker of the
burner has tri
ed and should be reset. If the
et must be replaced.
Special tools
needed
p
Module: 5. HEATING SYSTEM
Description: Burner
Number: 603-5-001
Page:
2(2)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
This instruction is for 605 ovens with serial numbers from 94.xxxx.xxx to present.
The temperature in the
oven does not rise.
(oil and gas ovens only).
circuit breaker trips repeatedly, call for service.
8. The motor overload protector for the circulation
fan has tripped and should be reset (14). If it
trips repeatedly, call for service.
9. The motor overload protector for the stack
fan/draft induction fan has tripped and should
be reset (12). If it trips repeatedly, call for
ice.
serv
10. 4TR (Stack fan/Draft induction fan timer) is
defective and should be replaced.
1. Is the burner energized?
IF YES,
- Contact your burner service.
IF NO,
- check that the stack fan/induction fan is
energized.
2. Is the stack fan/induction fan
energized?
IF NO,
- check the stack fan/draft induction fan
circuit.
IF YES,
- check that the main fan is energized
3. Is the main fan energized?
IF NO,
- check the main fan circuit.
IF YES,
- check that the temperature limit switch
has not tripped. If the temperature limit
switch is O.K., check the therm
function on the digital control unit.
WARNING
For problems related directly to the function of the
burner, refer to the burner manual and/or contact an
authorized burner technician.
1. Check if the red light between the set point and
actual temperature is lit. If it is lit, call for service.
2. The tem
erature limit control has tripped and
ostat
Module: 5. HEATING SYSTEM
Description: Burner
Number: 603-5-001
Page:
3(3)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
This instruction is for 605 ovens with serial numbers from 94.xxxx.xxx to present.
should be reset.
3. The burner has tripped and should be reset. To
reset the burner, power must be interrupted to
the burner. This can be done by turning oven
temperature down below set point and then
turning back up to set point.
4. The control fuse or the circuit breaker of the
burner has tripped and should be reset. If the
circuit breaker trips repeatedly, call for service.
5. The motor overload protector for the circulation
fan has tripped and should be reset (14). If it
trips repeatedly, call for service.
6. The motor overload protector for the draft
induction fan has tripped and should be reset
(12). If it trips repeatedly, call for service.
7. The burner capacity is too low. An authorized
service engineer should adjust and clean the
burner.
The burner is damaged by
back-flowing hot air after
the oven is switched off.
The draft in the chimney is not sufficient. A stack
fan/draft induction fan should be installed. The fan must
run for 15 min. after the oven is switched off.
Module: 5. HEATING SYSTEM
Description: Checking the heat
exchanger
Number: 603-5-002
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Trouble
Smoke from the burner
is coming into the baking
chamber.
Issued by: PM
SERVICE
INSTRUCTION
603/605
Approved by: TH
Issue date: January 19, 2005
Signed:
Suggested Measures
Take the heat exchanger out of the heating section
(refer to section no. 603-5-003 in this manual).
Check the seals where the front side of the heat
exchanger is connected to the opening in the front of the
heating section and the heat exchanger to chimney for
possible leakage.
Fill the heat exchanger (when cold) with water and
check for leakage.
Special tools
needed
Module: 5. HEATING SYSTEM
Description: Heat exchanger
Number: 603-5-003
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Trouble
The heat exchanger
needs to be replaced.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: June 09, 1997
Signed:
Suggested Measures
1. Start by removing the burner.
2. Remove the air duct panel covering the heat
exchanger on the left side, inside the baking
chamber.
3. Remove the isolation cover and the insulation on the
left and right side of the burner plate.
4. Remove the burner and pressure plate.
5. Remove the front and inner cover and the screws on
the front of the heat exchanger.
6. Remove the screws of the chimney/heat exchanger
connection.
7. Take the heat exchanger out of the front opening of
the heating section.
IMPORTANT
* Before mounting the new heat exchanger, replace
the seal on the front and chimney connection of the
heat exchanger.
8. Put some silicone glue 50217401on the new seals
and lift the heat exchanger into the heating section.
9. Attach the heat exchanger loosely with the four M6S
10x20 screws to the chimney .
10. Mount the front side of the heat exchanger. Then
lock the chimney connection screws.
11. Remount the inner cover, the safety springs, which
hold the inner cover against the front of the heat
exchanger, must be pressed together until they are
60mm long
12. Remount the front cover and the pressure plate.
13. Seal the gap between the pressure plate and the
end of the combustion chamber of the heat
exchanger with two turns of seal 50115400.
14. Remont the burner plate, the insulation and the
insulation covers.
Special tools
needed
Module: 5. HEATING SYSTEM
Description: Sweeping the heat
exchanger
Number: 603-5-004
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Trouble
Soot in the heat
exchanger.
Issued by: PM
SERVICE
INSTRUCTION
603/605
Approved by: TH
Issue date: June 09, 1997
Signed:
Suggested Measures
Remove the burner, the burner plate and the inner and
front cover of the heat exchanger.
Sweep the tubes and combustion chamber.
Mount the removed parts again.
If the heat exchanger is heavily polluted with soot,
please contact the burner supplier for a burner service.
Special tools
needed
Module: 5. HEATING SYSTEM
Description: Stack fan/draft
induction fan
Number: 603-5-005
Page:
1(1)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: April 07, 2004
Signed:
This instruction is for 603/605 ovens with serial numbers from 94.xxxx.xxx to present.
Trouble
The stack fan/draft
Induction fan is not
running.
The stack fan/draft
Induction fan stops
running immediately after
the oven is switched off.
The stack fan/draft
Induction fan motor is
broken and needs to be
replaced.
Suggested Measures
1. The motor over load protector (3F) has tripped
and has to be reset (12).
2. Check if the terminals A1-A2 of the motor
contactor are energized, always check against
neutral.
3. Check the motor voltage/Amp. per phase.
When the the motor circuit breaker is tripping
repeatedly the motor voltage/amp. per phase
should be checked.
4. 4TR (stack fan/draft induction fan timer) is
defective and should be replaced.
5. The motor contactor is defective and should be
replaced.
6. The motor is defective and should be replaced.
The stack fan/draft induction fan should continue
running for 15 minutes after the oven has been
switched off. If it does not, check the stack fan timer.
Note:
It is not necessary to remove the complete stack
fan/draft induction fan from the top of the chimney to
replace the motor.
Remove the stack fan/draft induction fan canopy.
Easy access to the motor by loosening the quick locks
and turning the motor bracket on the hinge upside
down.
Take the fan wheel off the motor shaft and replace the
motor. The fan wheel may revolve to the right or to the
left.
Special tools
needed
Module: 5. HEATING SYSTEM
Description: Heating elements
Number: 603-5-006
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460 (1978) to present.
Trouble
A heating element needs
to be replaced.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: June 09, 1997
Signed:
Suggested Measures
1. Remove the air duct panel covering the heat
exchanger on the left side, inside the baking section
and the cover for the elements inside the heating
section.
2. Remove the wires and the star connector from the
element.
3. Remove enough insulation around the element to let
the element wrench fit on the nut of the element.
4. Remove the defect element and replace it with a
new.
IMPORTANT
* Be sure that the distance washer on top of the
element is fit over the pin which is welded on the
rear inside panel of the heating section.
5. Reinsert the insulation around the element.
6. Connect the wires and star connector on the new
element.
7. Reinstall the element cover and the air duct.
Special tools
needed
Box spanner
(Part No.
40787500)
pray
Module: 6. STEAM SYSTEM
Description: Cleaning the
steam system
Number: 603-6-001
Page:
1(1)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: Jan 19, 2005
Signed:
This instruction is for 603/605 ovens with serial numbers from 94.xxxx.xxx to present.
Trouble
Insufficient or no steam is
generated.
Suggested Measures
1. Check if time is set on sprinkler (spray) timer.
2. Check that all valves and filters are open.
3. The solenoid valve is defective and should be
cleaned or replaced.
4. The water pressure is too low, below 4.5kg/cm²
(64 psi), and a booster pump has to be
installed. For steam results according to
Revent standards, Revent recommends a
constant water pressure of 4.5kg/cm² (64 psi).
This constant water pressure will generate a
large water volume for sufficient steam
capacity. To check the water volume, remove
the solenoid valve by loosening the nut on the
radiator coupling holding the solenoid valve
against the sprinkler tube. Set the steam timer
for 20 seconds and measure the water volume.
The volume should be approx. 11.0l (2,91 US
gls). To reach this volume the water pressure
should be 4.5kg/cm² (64 psi).
5. If the water pressure is O.K., check the
sprinkler tube for lime or other deposits that
may obstruct the holes and reduce the water
flow. The sprinkler tube can be cleaned with a
de-liming agent.
6. Check the steel balls for lime deposits. Too
much lime on the steel balls will have a
negative effect on the steam capacity of the
steam generator. Clean the steel balls with a
de-liming agent.
7. Check the ball beds for lime and rust deposits
from the steel balls. These deposits can
obstruct the flow of water through the holes in
the ball beds having a negative effect on the
steam capacity.
8. Follow procedure below to measure the water
volume:
a) Pull out the water spray tube.
b) Place the spray tube in a hose or tube that has
a larger inner diameter than the outer diameter
of the s
tube. The hose/tube should have
Special tools
needed
Module: 6. STEAM SYSTEM
Description: Cleaning the
steam system
Number: 603-6-001
Page:
2(2)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: Jan 19, 2005
Signed:
This instruction is for 603/605 ovens with serial numbers from 94.xxxx.xxx to present.
the same length as the spray tube.
c) Place the hose/tube and the spray tube in a
bucket and keep it there.
d) Set steam spray time for 20 seconds and press
start on the oven.
e) Measured volume of water should correspond
to item 4 above.
Module: 7. ROTATION
SYSTEM
Description: Motor
Number: 603-7-001
Page:
1(1)
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
This instruction is for 603/ 605 ovens with serial numbers from 94.xxxx.xxx to present.
Trouble
The rack rotation does
not start.
Suggested Measures
1. The oven door is not closed. If oven door is not
closed the green light on the ON button will
start flashing when in the baking mode.
2. The baking cycle has to be started as it
controls the function of the rotation motor.
3. Close the oven door and check if the motor
circuit breaker 2F has tripped.
4. Check that the terminals A1-A2 on the motor
contactor are energized, always check against
neutral.
5. Check the motor voltage/Amp. per phase.
6. The belt drive slips and should be tensioned.
Check the spring of the belt tensioner and that
the spanner wheel is touching the belt.
7. The motor is defective and should be replaced.
Special tools
needed
Module: 7. ROTATION
SYSTEM
Description: Gearbox
Number: 603-7-002
Page:
1(1)
SERVICE
INSTRUCTION
603
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
This instruction is for ovens with serial numbers from 94.xxxx.xxx to present.
Trouble
The gearbox is not
working.
The gear box has broken
and needs to be
replaced.
The oil level in the
gearbox needs to be
t
opped off.
Suggested Measures
Check the motor.
Check that the coupling between the gearbox and the
motor is not broken.
If broken, check that the alignment of the gearbox and
the motor is correct.
If the gear box needs to be replaced, be sure that the
red capped transport screw is replaced by the attached
air-release screw. Ensure that the ventilation hole is
open.
Check that the oil in the gear box is topped off.
For topping off, use one of the following lubricants:
Shell Tivela WB
Texaco Synlube SAE 90
BP Energol SGR 150
Mobil Glygoyle 30
Statoil ESL 812
For topping off ovens with Serial numbers 94.2631.058
to 04.xxxx.xxx, use one of the following lubricants:
Shell Tivela WB
Texaco Synlube SAE 90
BP Energol SGR 150
Mobil Glygoyle 30
If other synthetic oils are used the gear box must be
cleaned and flushed before the new oil is filled into the
gear box.
For topping off ovens with Serial numbers 03.xxxx.xxx
o present, use one of the following lubricants: t
Special tools
needed
Module: 7. ROTATION
SYSTEM
Description: Gearbox
Number: 603-7-002
Page:
2(2)
SERVICE
INSTRUCTION
603
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
This instruction is for ovens with serial numbers from 94.xxxx.xxx to present.
Note: The gear box is filled with polyglycol synthetic oil
and must not be mixed with other non-polyglycol
synthetic oils or mineral oils. One of the following
glycole synthetic oils should be used:
Shell Tivela SD (490 Cst*)
Shell Tivela WB (210 Cst*)
Mobil SHC 634 (380 Cst*)**
Mobil SHC 629 (140 Cst*)
BP SG-XP 460 (490 Cst*)
BP SG-XP 220 (240 Cst*)
* at 40°C/104°F
** recommended by Revent
The maximum allowed temperature in the worm gear is
90°C/194°F.
If other synthetic oils are used the gear box must be
cleaned and flushed before the new oil is filled into the
gear box.
Module: 7. ROTATION
SYSTEM
Description: Chain and chain
adjustment device
Number: 603-7-003
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460(1978) to present.
Trouble
The chain is rolling off the
sprockets.
Issued by: PM
SERVICE
INSTRUCTION
Approved by: TH
603/605
Issue date: June 09, 1997
Signed:
Suggested Measures
Check that the spring in the tensioner has not broken.
Check that the pin of the spring is placed in the correct
hole of the tensioner holder.
Check that the tension in the chain is not too weak.
(When the oven is cold, the chain can be pressed down
for max. one cm)
Special tools
needed
Module: 7. ROTATION
SYSTEM
Description: Platform
Number: 603-7-005
Page:
1(1)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460(1978) to present.
Trouble
The platform is not in
level with the door ramp.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
Suggested Measures
The platform can be adjusted either upwards or
downwards with the two adjusting screws in the centre
of the platform.
If the platform is above the ramp and cannot be
adjusted by turning the adjusting screws upwards,
check that the bearing cup is not jammed in the bearing
cup adaptor of the platform.
1. Loose the supporting tubes on the underside from
the platform. Lift the two platform halves out of the
baking section. Loose the column from the top bar
and lean the top of the column against a side wall of
the baking chamber. The bearing body and bearing
cup are now accessible.
2. Check that the bearing cup and the bearing body are
moving easily inside the adaptor of the column. A
jammed cup and/or bearing body can be knocked
out with a suitable mandrel through the adjusting
screw holes of the bearing cup=s receiv
3. Check why the bearing cup/bearing body was
jammed and adjust. Remount the upper bearing cup,
the bearing body and the lower bearing cup in the
adaptor of the column, be sure that the holes in the
upper bearing cup correspond to screw holes in the
adaptor. The square on the underside of the lower
bearing cup must fall into the guide on the floor of
the baking section when the column has been
moved into the correct position. Check that the holes
in the upper bearing cup still correspond to the screw
holes and remount the adjusting screws.
4. Remount the column against the top bar and check
that it moves easily, lift the two platform halves into
position, remount the supports and adjust the
platform with the screws.
If the platform is below the ramp and the adjusting
screws are not long enough to adjust the platform to the
level of the ramp, the bearing body should be checked.
Follow the same procedure as above.
er.
Special tools
needed
8mm (5/16”)
Mandrel
Module: 7. ROTATION
SYSTEM
Description: Platform
Number: 603-7-005
Page:
2(2)
This instruction is for 603 ovens with serial numbers from 85.05014 to present.
This instruction is for 605 ovens with serial numbers from 5460(1978) to present.
SERVICE
INSTRUCTION
603/605
Issued by: PM
Approved by: TH
Issue date: January 19, 2005
Signed:
Trouble
Fumes are leaking
between the door ramp
and the floor of the
baking section.
The breaker boss is not
operating the limit switch
any longer.
The platform is not
stopping in the correct
position in front of the
oven door.
This instruction is for 603 oven with serial numbers from 96.0342.482 to present.
This instruction is for 605 oven with serial numbers from 96.0542.050 to present.
Trouble
Fumes are leaking
between the door ramp
and the floor of the
baking section.
The breaker boss is not
operating the limit switch
any longer.
The platform is not
stopping in the correct
position in front of the
oven door.
Measure
Remove the door ramp from the oven floor and turn it
upside down to check the seal for leakage. If the seal
has to be replaced, use the same seal material (part no.
50110700) and clips (50114900) as for the door seal.
If the breaker boss is below the limit switch, check the
height of the bearing body. The platform is probably
also under the level of the door ramp.
Check that the platform-stop limit switch on top of the
oven is not loose. If O.K., open the door, place the
platform by hand in the correct position and adjust by
knocking the breaker boss, with a hammer, a little to the
right or left until it stops the platform in the correct
position.
Measure
Remove the door ramp from the oven floor and turn it
upside down to check the seal for leakage. If the seal
has to be replaced, use the same seal material (part no.
50201001) and glue (50217401) as for the door seal.
If the breaker boss is below the limit switch, check the
height of the bearing body. The platform is probably also
under the level of the door ramp.
Check that the platform-stop limit switch on top of the
oven is not loose. If O.K., open the door, place the
platform by hand in the correct position and adjust by
knocking the breaker boss, with a hammer, a little to the
right or left until it stops the platform in the correct
position.
Special tools
needed
Special tools
needed
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