Grindmaster D35 Service Manual

Beverage Dispensers
Mini, Standard, Heated, Whipper and Super Bowl Models
Service Manual
Table of Contents
Unpacking ................................................. 2
Installation ................................................. 2
Assembly .................................................. 3-4
Disassembly .............................................. 5
Helpful Hints ............................................. 6
Preventative Maintenance ....................... 7
Security Kit Installation ............................ 8-9
Service
Base Assembly Components .............
10
Installing Pump & Fan Motors ............
10
Replacement of Compressor
Overload and Relay .............................
10
Replacement of Temperature Control .. 11
Magnetic Lock ...................................... 12
Evaporator Assembly ..........................
12
Refrigeration Test ................................ 12
Trouble Shooting Guide ........................... 13
Exploded Views ......................................... 14-19
Wiring Diagrams ........................................ 20-24
Refrigeration
Schematic ............................................ 25
Cap Tube Specs .................................. 25
Refrigerant Charges ........................... 25
Prior authorization must be obtained from Grindmaster Corporation for all warranty claims.
Grindmaster Corporation™
4003 Collins Lane Louisville, KY 40245 USA (502) 425-4776 (800) 695-4500 (800) 568-5715 (Technical Service Only) FAX (502) 425-4776 www.grindmaster.com
Grindmaster Corporation, 1996 PRINTED IN USA
Patents Pending 0404 Form #CC-375-05 Part #3275
Figure B
UNPACKING
Your dispenser is packed in 2 cartons: base pack and bowl pack. Unpack base by opening bottom
flaps. See Figure A.
IMPORTANT NOTES:
1. Do not leave base upside down as this can damage refrigeration system.
2. Check that all 4 rubber feet are attached to legs after removing from base pad. Check base pad or carton for missing feet and replace on legs.
3. Never lift from louvres/ventilation slots. Instead, place fingers under base plate.
INST
ALLATION
1. Place base on counter.
2. For heated units (HD15/WHD15) units only: Install Safety Arms
Tools required: Phillips Head Screwdriver a) Place unit on its side so you have access to the bottom of the unit. b) Line up arm holes so they line up to the holes on the bottom of the unit; arms
will extend forward as shown in illustration. See Figure B.
c) Attach arms with screws provided.
3. Leave sufficient air space (6”(15cm)) on sides (also rear of D35 triple) for proper airflow and efficient operation. See Figure C. IMPORTANT: Failure to provide required airspace can damage unit.
4. Plug into properly grounded, 3 prong outlet.
5. Assemble bowl parts and drain trays. See Assembly instructions that follow.
See Figure D.
NOTE: See pages 8 - 9 for Installing Security Kit Instructions.
1. Roll chassis up-side down
2. Open bottom flaps. Fold back.
3. Hold flaps out of way. Roll the carton over.
4. Lift off carton. Remove bottom pad.
BOTTOM PAD
CHASSIS
Figure A
Figure D
SPRAYTUBE
3/8” TAB
BOWL
GUIDE PIN
CHASSIS
FRONT
COOLING PLATE
BEARING SLEEVE
IMPELLER
BOWL GASKET
PUMP COVER
LOCKDOWN WASHER
SET-UP
Crathco® Beverage Dispensers Page 2
6” (15 cm)
(all units)
6” (15 cm)
(D35 only)
Figure C
Page 3 Crathco® Beverage Dispensers
PLACE BEARING SLEEVE ON GUIDE PIN
Note flat sides on outside of guide pin and on inside of bearing sleeve. Line flat sides up until bearing sleeve slides down over guide pin and rests on the cooling plate.
PLACE PUMP COVER OVER GUIDE PIN Place the pump cover over the guide pin
with the spray tube toward the front. Note that the tab on the front of the pump cover fits between the 2 locator buttons on the bowl. Mini units - bent part of spray tube faces front of bowl.
NOTE: Use agitator cover in place of pump cover and spray tube for fresh juice, drinks that foam (iced tea or dairy products), or heavy viscous drinks.
PLACE IMPELLER OVER BEARING SLEEVE.
Put impeller over bearing sleeve with fin side up.
INSTALL LOCKDOWN WASHER OR CLAMPS
S
t
andard Units:
• Place lockdown washer over guide pin.
• Push lockdown washer down and into locking keyway.
• Turn lockdown washer clockwise to lock into place.
Mini Units:
• Place lockdown washer over guide pin.
• Push lockdown washer down and into locking keyway.
• Slide into locked position.
D112 Superbowl Units:
• Insert each lockdown clamp in a lockdown pin and snap down into place. (Lock down 2 clamps closest to
the front of the bowl first.)
PLACE BOWL GASKET ON BOWL
Turn bowl upside down and place bowl gasket over the neck of the bowl. Moisten gasket with water.
NOTE: On D112 units place bowl gasket around cooling dome.
PUT BOWL ON BASE
Place the neck of the bowl over center of the cooling plate and with a back and forth downward motion, push bowl down into place.
NOTE: On D112 units, place bowl over the gasket and cooling dome with the neck of the bowl centered on the cooling dome.
ASSEMBLE VALVE AND HANDLE
Place handle (C) in the two V-cuts in the front of the handle bracket (B) and push handle back. From inside bowl, lower the valve (A) through the outlet hole, and through the hole in the handle. Release handle.
REPLACE DRIP PAN(S)
Lower pan cover into the top of the drip pan. Place top edge of drip pan up under lip on front panel. Lower each drip pan so that the tab goes down into the tab slot and locks pan in place.
Regular units proceed to step 15. Whipper units proceed to step 9.
1. HOLD HANDLE IN “V” NOTCHES & LIFT REAR OF HANDLE UP.
2. FROM INSIDE THE BOWL, LOWER THE VALVE THROUGH OUTLET HOLE, AND THROUGH HOLE IN THE HANDLE.
3. RELEASE HANDLE
HANDLE
O-RING
VALVE
2
3
4
1
5
6
7
LOCKDOWN WASHER
LOCKING KEYWAY
3/8” TAB
“FRONT” OF DISPENSER (TOWARD VALVE AT FRONT OF BOWL)
HEAD OF GUIDE PIN
CROSS RIBS
PUMP COVER
Assembly
8
BASEPLATE
TAB
SLOTS
FRONT PANEL LIP
Assembly (cont.)
PRESS SPRING UP INTO PLACE
AGAINST THE BOTTOM
OF THE BOWL.
ASSEMBLE THE RUBBER INLET ADAPTER
Assemble white rubber inlet adapter by stretching one end over the large tubular inlet on top of the whipper housing. Attach the other end over the ring sleeve on the underside of the handle.
INSERT HANDLE INTO “V” NOTCHES AND PLACE VALVE INTO HOLE.
TURN VALVE 90° TO LOCK. Cross slot (located on top of valve) should run left to right
across the bowl when locked.
PUSH WHIPPER BLADE INTO PLACE. Replace the whipper blade by
lining up the flat inside the blade with the flat side of the motor shaft. Push blade firmly into place.
REPLACE WHIPPER CHAMBER.
Replace whipper chamber by
positioning the medium-sized opening up and tilting 1/8 turn to the right. Put whipper chamber over whipper blade and turn to the left until it locks
into place.
9
HANDLE SHOULDERS GO
INTO “V’ NOTCHES
RINGSLEEVE DOWN
VALVE HOLE
SPRING
VALVE HOLE
SPRING
10
“W” IS WHIPPER VALVE
TOP
14
(LOOKING DOWN INTO BOWLS)
CROSS-SLOT
VALVE DOWN IN HOLE
READY TO LOCK
AFTER 90° TURN,
VALVE IS LOCKED
I/ON
SPRAY
O/OFF
I/ON
REFRIG.
O/OFF
Ring sleeve on bottom of handle
Rubber inlet adapter
Plastic whipper housing
11
12
13
FILL BOWLS WITH PRODUCT
and replace lids on bowls. Turn spray switch on first then refrigeration.
15
SPRING
VALVE
HOLE
Crathco® Beverage Dispensers Page 4
REMOVE PUMP COVER
Remove pump cover by
lifting up on spray tube.
STANDARD & MINI UNITS:
REMOVE VALVE AND HANDLE
Lift valve. Handle drops into operator’s other hand.
WHIPPER UNITS:
• DISASSEMBLE THE RUBBER INLET ADAPTER
Remove one end from the large tubular inlet on top of the whipper housing and the other end from the ring sleeve on the underside of the handle.
• REMOVE WHIPPER CHAMBER
Turn whipper chamber to the right until it releases and you can pull it off of the whipper blade.
• REMOVE WHIPPER BLADE
Pull whipper blade off of the motor shaft.
• TURN VALVE90° TO UNLOCK.
REMOVE HANDLE AND VALVE.
• REMOVE SPRING FROM
BOTTOM OF BOWL.
REMOVE BOWL AND BOWL GASKET
Twist bowl back and forth while lifting up. Bowl gasket will be around bottom of bowl.
NOTE: On D112 units, bowl gasket will be around cooling dome.
REMOVE IMPELLER AND BEARING SLEEVE
Remove impeller and bearing sleeve by lifting them straight up.
NOTE: Check impeller and bearing sleeves for wear. See page 7.
THOROUGHLY CLEAN ALL PARTS IN WARM WATER
USING A MILD NON-ABRASIVE
DETERGENT AND
RINSE THOROUGHLY.
CAUTION
: ABRASIVES WILL SCRATCH PLASTIC PARTS. WASH BOWL LIDS IN COOL OR LUKEWARM WATER TO AVOID LEAKS DUE TO SEALED SURFACE BEING DAMAGED.
REMOVE LOCKDOWN WASHER(S)
SANITIZE Immerse parts in sanitizing solution for 1-2 minutes. Remove parts from sanitizing solution and drain. DO NOT RINSE. Place parts on a clean surface to air dry. Wipe the machine, condensate tray and cooling plate depression with a cloth wetted with sanitizer solution.
IMPORTANT: Never pour dry powder, crystals, or concentrate into a dry bowl. Premixing beverage in separate container is recommended. If mixing in bowl, always add water first.
2a.
3
5
6
S
tandard Unit: Twist lockdown washer counterclockwise, slide to release keyway. Then lift out.
Mini Unit:
Slide to release
keyway, then lift out. D1
12 Unit: Release each clamp.
A
DISASSEMBLY
DRAIN ALLBEVERAGE FROM BOWLS
A. Remove bowl lid(s) and drip tray(s) B. Drain through valve then C. Tip unit forward, gently press spray
tube back a short distance to lift the edge of the pump cover to allow remaining beverage in well to be drained through valve.
1
7
B
4
2b.
Ring sleeve on bottom of handle
Rubber inlet adapter
Plastic whipper housing
VALVE HOLE
SPRING
VALVE
HANDLE
Page 5 Crathco® Beverage Dispensers
ROUTINE MAINTENANCE: For all Models
Cleaning Your Dispenser
To optimize performance or when using dairy products, clean unit daily. Regular cleaning of bowl components will result in maximum pumping efficiency, proper seating and sealing, and prevention of leaks at the valve O-Ring and bowl gasket by removing dried-on beverage solids and pulp from mov­ing sealed parts.
1. Wash all bowl components regularly. Follow all local health codes. * Refer to Disassembly, Cleaning, and Assembly instructions on pages 3-4.
Sanitizing Your Dispenser
* Refer to Disassembly and Assembly instructions on pages 3-4.
1. In the bowl, mix one gallon of Oxford Chemical’s Disinfectant/Sanitizer Formula C or its equivalent.
2. Turn on spray motor(s) and allow sanitizer to spray around inside of bowl for a period of time as recommended by the sanitizer manufacturer. Formula C is satisfactory for this purpose when mixed in a solution of 1 liquid ounce of cleaner to 4 gallons of water. Run spray motor(s) for 60 seconds. In areas with extreme hard water, consult the local health authority.
3. Drain sanitizer completely and thoroughly during each step of the cleaning process (wash, rinse, and sanitize). Refer to tips on draining in Disassembly Guide on page 3.
HELPFUL
HINTS
1. Noisy Impeller: Do not run impeller dry. The impeller will make a chattering sound in an empty bowl. Remove the impeller and run a small amount of water in the bowl.
2. Valve and O-Ring: On the first installation, if there is an after-drip, place your hand on the valve and with a slight downward pressure turn it slightly. This will help seat the o-ring so that it is properly aligned with the valve seat. If an o-ring becomes cut or worn it should be replaced. If you are pumping a product which has excessive pulp, a separate valve weight may be purchased to add extra weight so the o-ring will press down against the pulp and guarantee a positive shut-off.
3. Valve Cap Use: The Valve Cap (Part # 2039) insures that a tight valve seal will occur with products containing heavy pulp. The Valve Cap can be installed by placing it on top of the Valve after the Valve has been assembled into the bowl. See Figure E.
4. High Water Marks on Bowl: When you agitate, you may get “high water marks” as the beverage level drops. Keep the bowl as full as possible. Frosted bowls are available which are helpful in reducing the appearance of water marks.
5. To Spray or Not to Spray: Most beverages can be sprayed. It is best not to spray iced tea, iced coffee, natural juices, or beverages that foam (whipped drinks). A special agitator plate is used in place of a pump cover and spray tube to promote circulation.
6. Proper Cooling: Always keep spray switch on when refrigeration switch is on. A unit must spray or agitate to cool. Failure to do this will cause impeller to lock-up. The dispenser is designed to run 24 hours a day. Keep both spray and agitate on when beverage is in the bowls.
7. Condensation: Condensation on the bowls and lids is natural, cool, and refreshing. The amount of condensation is affected by humidity. Condensation will run down the front panel into the drip tray. Remember to occasionally empty the drip trays.
8. Single Bowl Operation: If you find it necessary to run your dispenser with only one bowl containing beverage, put one half (1/2) cup of water in the unused cooling plate depression(s) for best one-bowl operation and efficiency.
VALVE CAP
VALVE
Figure E
Crathco® Beverage Dispensers Page 6
1) Wash all bowl components regularly.
2) Wash impeller and bearing sleeve individually and check for wear.
a) Check for wear on bearing sleeve (flange should be
1.77mm thick - thickness of penny or quarter). (Figure B)
b) Check for wear on impeller (inner white center section
should be flush with colored part of impeller). (Figure A)
c) If bearing sleeve or impeller do not spin freely or are worn
- replace them. (Figure E)
d) Worn parts can cause personal injury, impair cooling and
can damage machine. (Figure C & D)
3) Check valve o-rings and bowl gaskets for wear or damage ­replace every 6 months or as needed.
4) Every 6 months or more often if needed: unplug unit, remove panels, clean condenser and interior. (Remove dust and lint from fins with a soft brush and vacuum.)
5) For further information, visit www.grindmaster.com or call (800) 695-4500.
Part #s for Preventative Maintenance
Description Part #
Bearing Sleeve (all units except D112) 3220
Large Blue Impeller
(D & WD model)
1161
Small Red Impeller
(E model)
1008
Universal Impeller (all models) 3587
Valve O-ring 1012
Bowl Gasket - for D, WD models
5 gallon (or 3 gallon) bowl
1013
Bowl Gasket for E model and/or 9 liter bowl 2010
Bowl Gasket for 12 gallon SuperBowls (D112) 1150
Bearing Sleeve for 12 gallon Super Bowl (D112) 1983
New bearing sleeve
flange (approx. 1.77mm - thickness of penny or quarter)
Worn bearing sleeve (replace when worn to approx. 1mm or 1/2 thickness of penny or quarter).
Bearing sleeve and impeller should spin freely when held like this. If parts do not spin freely or are worn, unit will not cool properly and worn parts may damage machine.
worn flange
Bearing sleeve with flange missing is extremely worn. Discard immediately. CAUTION: Handle with care. Sharp edges may cause personal injury or damage to machine.
Figure A
Figure B
Figure C
Figure D
Figure E
PREVENTATIVE MAINTENANCE
Universal Impeller
(Part # 3587)
Page 7 Crathco® Beverage Dispensers
Bottom of
Worn Impeller
Replace when worn.
Yellow or white area no
longer flush but indented.
Top of Impeller
Bottom of Unused Impeller
Yellow or white area should be
flush with colored area.
Standard Security Kit Includes
D15 D25 D35
ITEM PART # / QTY PART # / QTY PART # / QTY KIT (contents listed below) 2509 2510 2511
PAD LOCK 1503 / (2) 1503 / (3) 1503 / (4) COVER LOCK STRAP 2450 / (2) 2451 / (2) 2450 / (2) VALVE LOCKING BOX 2502 / (1) 2502 / (2) 2502 / (3) KEY VALVE LOCKING BOX 2503 / (1) 2503 / (2) 2503 / (3) CHANNEL TOP N/A N/A 2554 / (1)
How to Assemble Bowl Locking Strap
No tools are needed to assemble kit. One pair of Cover Lock Straps are needed per dispenser. They are designed to work
on 5 gallon bowls only with the double wall bowl cover #2240. Each pair of cover straps uses one Padlock. The Model D35 triple bowl unit also requires a top channel bar. UNPLUG MACHINE BEFORE INSTALLING KIT
1) For - 3 Models (with stainless side panels), hook the bottom end of the strap into the louvre in the top row nearest the dispenser’s front on both sides of the dispenser. (See Figure 1) For - 4 Models (with plastic side panels), hook the bottom end of the strap under the second section* of the top louvre on both sides of the dispenser. (*note the sections under the louvres)(See Figure 1)
2) Bring both tops of the cover straps together (above the bowl cover).
3) Place padlock into the holes of the cover straps and lock together.
Note: D35 only - The top channel is interlocked into place on top of the bowls in the same manner as described above. Interlock the side without the padlock first. (See Figure 2)
SECOND SECTION* FROM THE FRONT ­TOP ROW
FRONT ROW - TOP
STANDARD
- 4’S FRONT
STANDARD
- 3’S FRONT
Figure 1
The extended side of the box with the turned-up edge is the top.
1) Place the turned up edge (#1) over the top edge of the handle.
2) Place #2 behind the “Push” part of the handle.
3) Next, raise the box while keeping it pressed against the front panel of the dispenser. Hook the turned-up edge (#1) over the top of the handle.
4) Slide the locking bar (#3), through the slots (#4).
5) Add the padlock through the hole and lock.
NOTE: Kit designed for “cup activated” handle (pictured). Kit will not work with “non-contact” handle.
Valve Box Locking Installation Instructions for Standard Units
SECURITY KIT INSTALLATION - STANDARD UNITS
The valve security kit locks dispense valve to prevent use when store is closed. The bowl security kit locks the lid on the bowl to prevent unauthorized access.
Figure 2
PADLOCK HERE
Crathco® Beverage Dispensers Page 8
Mini Security Kit Includes
E27 E29 E47 E49
ITEM PART # / QTY PART # / QTY PART # / QTY PART # / QTY KIT (contents listed below) 5350 5351 5352 5353 SECURITY BRACKET 2755 / (1) 2755 / (1) 2755 / (1) 2755 / (1) SECURITY UPRIGHT 2756 / (1) 2943 / (1) 2756 / (1) 2943 / (1) LOCKDOWN CHANNEL 2760 / (1) 2760 / (1) 2761 / (1) 2761 / (1) SCREW, 10-24 X 3/4 0077 / (1) 0077 / (1) 0077 / (1) 0077 / (1) PADLOCK 1503 / (2) 1503 / (2) 1503 / (3) 1503 / (3) VALVE LOCKING BOX 3203 / (2) 3203 / (2) 3203 / (4) 3203 / (4) LOCKING BAR 3202 / (1) 3202 / (1) 3202 / (2) 3202 / (2) CAP NUT 0053 / (2) 0053 / (2) 0053 / (2) 0053 / (2) 5/16 SS SCREW 0061 / (2) 0061 / (2) 0061 / (2) 0061 / (2) SECURITY CLAMP 2754 / (1) 2754 / (1) 2754 / (1) 2754 / (1)
Tools required: 1 regular blade screwdriver, 1 Phillips screwdriver
Instructions: UNPLUG MACHINE BEFORE INSTALLATION
1) Remove all bowls from unit.
2) Remove the left side panel and back panel.
3) Clip security bracket over the back lip of top tray between the bowl indentations. (see drawing)
4) Reassemble back and side panel. The back panel fits over the security bracket.
5) Situate the security clamp over the drip lip and tighten the screw (#0077), so the tab, located on the back of the security clamp, slides into the security bracket’s slot. (see drawing)
6) Bolt the security upright onto the security clamp using 2 cap nuts and 5/16 SS screws provided. (see drawing)
7) Reassemble the bowls on the unit.
8) Place the lockdown channel on top of bowls, making sure the lockdown channel’s opening slips into the security upright’s notch.
SECURITY KIT INSTALLATION - MINI MODELS
Padlock
5/16 Screw
Security Clamp
Front of Unit
Cap Nut
Back of Unit
Top Tray
Lockdown Channel
Security Upright
Security Bracket
Screw 10-24 x 3/4
Drip Lip
The valve security kit locks dispense valve to prevent use when store is closed. The bowl security kit locks the lid on the bowl to prevent unauthorized access.
Valve Locking Device Installation Steps
1) Place locking box underneath bowl where valve protrudes.
2) Insert locking bar through the slits on each side of the locking box.
• For Models E27 and E29 put the locking bar through both boxes.
• For Models E47 and E49 put the locking bar through two of the locking boxes from the center with the lock on the outside. Next, install the two other boxes from the outside to the center.
3) Place the padlocks into the hole on each locking bar and lock. NOTE: Kit designed for “cup activated” handle (pictured). Kit will not work with “non-contact” handle.
Valve
Handle
Step 1
Step 2
Step 3
Mini Model Valve Locking Device Exploded View
Page 9 Crathco® Beverage Dispensers
BASE ASSEMBLY COMPONENTS (Refrigerated Unit)
Compressor
Pump Motor
(one for each bowl)
Evaporator
Assembly
Thermostat
and Power
Switches
Condenser
Condenser fan and motor
Refrigeration
T ubing
(Model D35 shown here)
INSTALLING PUMP AND FAN MOTORS: For All Models Tools Required: Phillips screwdriver
1. Disconnect from power.
2. Remove cabinet panels.
3. Disconnect wires leading from motor to terminal board and/or switch.
4. Loosen bolts holding motor in place and replace with new motor. NOTE: Loosen bolts that hold top tray to frames for easier pump motor installation. Retighten bolts after reassembly.
5. Connect wires from new motor to terminal board and switch.
6. Replace cabinet panels. NOTE: When installing or repairing the pump it is important to adjust the magnetic lock. On page 5 are the instruc­tions that should be followed for adjusting the magnetic lock (See Figure N).
REPLACEMENT OF COMPRESSOR OVERLOAD
AND RELAY:
(Figure Q)
For Standard, Whipper and Mini Models
1. Disconnect from power and remove front panel.
2. Remove plastic cover (A) and lock wire (E27s have a nut to unscrew) (B) from compressor housing and note positions of overload (C), relay (D) and wiring.
3. Disconnect overload (C) from housing and wires, put overload spring clip (E) on new overload, then rewire and replace in proper position on compressor.
4. Pull off relay (D) and disconnect wires, then rewire and push new relay onto the compressor terminals (F).
5. Replace plastic cover (A) and lock wire (B), front panel of dispenser and service cord to power supply.
Figure Q
E
C
F
A
B
D
F
SERVICE
Crathco® Beverage Dispensers Page 10
REPLACEMENT OF TEMPERATURE CONTROL (PART # 1059) Tools Required: Phillips Screwdriver; Grease or Petroleum Jelly; Putty or similar substance
1. Unplug unit.
2. Remove front panel and side panel, located on the switch side, to access the temperature control mounting screws, located on the front right corner of the frame.
3. Remove the two (2) terminals to the control. Remove the two (2) screws holding the control to the frame.
4. Pull the control tube out of the evaporator, noting its direction and length it was inserted into the evaporator.
5. Straighten the new tube out and lubricate it with grease or petroleum jelly if possible.
6. Slide the control into the copper tube inside the evaporator.
7. Make sure the control slides into the tube the same distance as the old one. Reseal the opening with putty or a similar substance.
8. Bend excess tubing away from the fan blade.
9. Reassemble the terminals, screws and panels.
10. The control is in approximate calibration and the bowl temperature should be between 35 and 40 degrees. Minor
adjustments can be made by turning the cut in/cut out adjustments screws on the control side.
Remote bulb inserted into evaporator
Temperature Controller
Remote bulb inserted into evaporator
TEMPERATURE CONTROLLER
EVAPORATOR TRAY
Condensate Tray
Evaporator T ubing
Thermostat Well
Page 11 Crathco® Beverage Dispensers
MAGNETIC LOCK
Magnetic Lock Problems
If a unit is not spraying, check the following: a) The impeller must spin freely when the bearing sleeve is held between
the thumb and the forefinger,
b) The impeller should turn when assembled and the motor switch is
turned “ON”. c) The pump motor runs without the impeller in place. d) The air-gap between the drive magnet and the impeller is too great,
causing a loss of “magnetic lock”. NOTE: When adjusting the drive magnet on the pump motor shaft, place the drive magnet assembly as high as possible and still leave 1/16” clear­ance between the magnet and the underside of the top tray. The spacers on the motor bracket may be removed first for easier access.
Magnetic Lock Adjustment
1. Remove the pump motor assembly from the unit by loosening the (2) pump motor bolts with a 7/16 wrench. (To
remove the left pump motor assembly on a D25, you will have to remove the (2) bolts that connect the frame to
the top tray on the left side and raise the frame slightly to slide the motor out.)
2. With a 3/32 Allen Wrench, loosen the (2) set-screws on the drive magnet and raise the magnet. The magnet
should be as close as possible to the evaporator cover without rubbing. Tighten the set-screws and replace the
pump motor assembly.
Figure N
THIS IS A TRIAL AND ERROR ADJUSTMENT
BEARING SLEEVE IMPELLER STAINLESS TOP
TRAY
3/32” ALLEN SET SCREW
GUIDE PIN
PUMP
MOTOR
NUT
T
OP TRAYASSEMBLY STEPS (EVAPORATOR ASSEMBLY)
1. Unplug the unit.
2. Remove all panels.
3. Remove 4 tray mounting bolts in upper corners.
4. Evacuate refrigerant.
5. Disconnect pump motor wires.
6. Unsolder suction line and capillary tube.
7. Replace filter drier.
8. Swap pump motor assemblies to new evaporator assembly.
9. Reassemble.
10. Evacuate and charge system.
REFRIGERATION TEST
1. Add water to well.
2. Turn unit ON - if refrigeration is OK a frost pattern will form in less than 5 minutes.
Crathco® Beverage Dispensers Page 12
PROBLEM POSSIBLE CAUSE SOLUTION
No or partial Refrigeration: Compressor Runs Note: Unit must spray or agitate properly to obtain cooling
• Not clear air flow
• Condenser clogged with dust or lint
• Faulty fan motor
• Loss of refrigerant
• Fan blade hitting wires or tubing
• Provide 6” clearance on sides and back
• Remove front panel and clean out all lint and dust . Use vacuum cleaner or bottle brush.
• Replace motor
• Return to factory - call for RMA.
• Bend wires or tubing to clear.
No Refrigeration: Compressor Does Not Run Note: Unit must spray or agitate properly to obtain cooling
• Defective compressor overload protector
• Compressor cycles on overload protector
• Faulty refrigeration switch
• Temperature control open
• Faulty electrical connection
• After checking all of above, if compressor doesn’t run
• Replace.
• Check for low line voltage. Then check relay and overload and replace if necessary.
• Replace switch.
• Replace temperature control.
• Locate and correct.
• Return to factory - call for RMA.
No Spray or Agitation: Spray Motor Runs
• Pump impeller does not spin; check for worn bearing sleeve and/or impeller (impeller rubbing on stainless steel evaporator)
• Pump impeller does not spin freely on bearing sleeve.
• Impeller chatters but does not spin properly
• Replace sleeve and/or impeller.
• Clean impeller bearing. Ream out impeller bearing if necessary. Impeller must spin freely on bearing sleeve.
• Raise drive magnet higher on motor shaft, but not high enough to rub.
No Spray: Spray Motor Doesn’t Run
• Loose electrical connection to motor
• Faulty spray switch
• Faulty motor
• Drive magnet binds on plastic evaporator cover
• Locate and correct
• Replace spray switch
• Replace motor
• Relocate magnet (NOTE: Magnet should be about 1/16” from plastic to prevent binding or rubbing.)
Leaky Bowl • Gasket improperly installed
• Worn or nicked bowl gasket
• Ordinary condensation build-up
• Reinstall gasket. Check directions for bowl assembly.
• Replace gasket
• Keep drip pan attached to catch condensation.
Noisy Unit • Worn bearings in either fan or pump motor
• Bent fan blade
• Pump impeller and/or sleeve chattering
• Replace motor(s)
• Re-bend fan blade to correct alignment
• Replace impeller and/or sleeve
Unit Does Not Heat • Loose electrical connection to heating
element
• Locate and correct
Unit Overheats • Faulty thermostat • Replace thermostat
Trouble Shooting Guide
If you still need help, call an authorized dealer in your area or Grindmaser Corporation’s Technical Service Department. You can reach Technical Service at (800) 425-4776 Monday-Friday, 8:00 AM-6:00 PM Eastern Standard Time. Please have the model and serial number ready so that accurate information can be given. Prior authorization must be obtained from Grindmaster Corporation’s Technical Service Department for all warranty claims.
Page 13 Crathco® Beverage Dispensers
Exploded View
Standard and
Whipper Models
(D15, D25, D35, & WD)
Crathco® Beverage Dispensers Page 14
Parts List
Standard and Whipper Models
Page 15 Crathco® Beverage Dispensers
Standard Whipper Components
Crathco® Beverage Dispensers Page 16
Exploded View Mini Models (E27/9 or E47/9)
Page 17 Crathco® Beverage Dispensers
Parts List
Mini Models (E27/9 or E47/9)
Crathco® Beverage Dispensers Page 18
Exploded View and Parts List HD15 - Heated Models
Page 19 Crathco® Beverage Dispensers
1162
1165
1257
3225
1010
2243
2023
1012
1150
1175
2266
2484
(not shown)
2305
2231
2232
Part # Description Models Used On
1010 Dispense Valve All Standard (non-whip) 1012 O-ring for Dispense Valve All 1150 Bowl Gasket D112 1155 Super Bowl Lid D112 1162 Super Bowl (12 gal) D112 1165 Super Bowl Pump Cover (use with spray tube) D112 1175 Super Bowl Spray Tube D112
1257
Agitator (use in place of pump cover and spray tube for iced
tea, orange juice, and viscous products)
D112 2023 Lock Washer D112 2231 Plastic Drip Tray
D15, D25, D35, E27, E47, D112, HD15,
and all WD models
2232 Plastic Drip Tray Grid
D15, D25, D35, E27, E47, D112, HD15,
and all WD models
2243 Stainless Steel Drip Tray
D15, D25, D35, E27, E47, D112, HD15,
and all WD models
2266 Dispense Valve Handle All Standard (non-whip) 2305 Stainless Steel Drip Tray Grid
D15, D25, D35, E27, E47, D112, HD15,
and all WD models
2484 Handle, Non Cup Contact All Standard (non-whip) 3225 Bearing Sleeve All 3587 Impeller (black) All D, HD, and WD models
Super Bowl (D112) Bowl Assembly Parts
3587
Crathco® Beverage Dispensers Page 20
Wiring Diagrams
Standard Models
115V & 220V
Single Bowl
D15/D155/D156
Double Bowl
D25/D255/D256
Triple Bowl
D35/D355/D356
Page 21 Crathco® Beverage Dispensers
Wiring Diagrams
for Mini Models
(115V & 220V)
Models E27, E275, and E276
or E29, E295, and E296
Models E47, E475, and E476
or E49, E495, and E496
Crathco® Beverage Dispensers Page 22
Wiring Diagrams
Whipper Models
Single Bowl
WD15
Double Bowl
2WD25
1WD25-4
Triple Bowl
3WD35 2WD35-4 1WD35-4
Page 23 Crathco® Beverage Dispensers
Wiring Diagram
for Heated Models (HD15 & WHD15)
115V/60Hz and 230V/50Hz
Crathco® Beverage Dispensers Page 24
REFRIGERANT CHARGE
FOR CRATHCO DISPENSERS
1 oz = 28.34952 grams
grams ounces
D15 89 3.1 1/6 hp D155/6 97 3.4 D25 190 6.7 1/5 hp D255/6 190 6.7 D35/D355 197 6.9 1/3 hp E17 50 1.8 E27 120 4.2 1/6 hp E275/6 89 3.1 E47 161 5.7 1/5 hp E475/6 161 5.7 D112 196 6.9 1/4 hp D1125 196 6.9
CAP TUBE SPECIFICATIONS
Model OD ID Length GCS
Part #
D15 .073 .031 76” 2308
D25 .087 .036 60” 1324
D25 .088 .036 52” 2968
D35 .093 .042 66” 3361
D112 .097 .042 97” 1199
WD35 .093 .042 66” 3361
Refrigeration Schematic
Page 25 Crathco® Beverage Dispensers
Grindmaster® Coffee Grinders and Brewers • Espressimo® Espresso Machines • Crathco® Hot Beverage Dispensers
Crathco® Cold and Frozen Beverage Dispensers • American MetalWare® Coffee and Tea Systems
Tel (502) 425-4776 • Fax (502) 425-4664 • 1-800-695-4500
P.O. Box 35020 • Louisville, KY 40232 • USA
www.grindmaster.com • email: info@grindmaster.com
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