Motak PKU0155 User manual

PKU0155/PKM0335/PKM0425/PKM0535 MODELS
Part Number: 000016427 Rev 00 01/2021
Ice Machines
Service Manual
PKU0155/PKM0335/PKM0425/PKM0535 MODELS
For technical Assistance please call - MoTak Service @ 1-800.839.6754

Safety Notices
Read these precautions to prevent personal injury:
• Read this manual thoroughly before operating, installing or performing maintenance on
the equipment. Failure to follow instructions in this manual can cause property damage,
injury or death.
• Routine adjustments and maintenance procedures outlined in this manual are not
covered by the warranty.
• Proper installation, care and maintenance are essential for maximum performance and
trouble-free operation of your equipment.
• This equipment contains high voltage electricity and refrigerant charge. Installation and
repairs are to be performed by properly trained technicians aware of the dangers of
dealing with high voltage electricity and refrigerant under pressure. The technician must
also be certified in proper refrigerant handling and servicing procedures. All lockout and
tag out procedures must be followed when working on this equipment.
• This equipment is intended for indoor use only. Do not install or operate this equipment
in outdoor areas.
• As you work on this equipment, be sure to pay close attention to the safety notices in
this document. Disregarding the notices may lead to serious injury and/or damage to
the equipment.

Definitions
DANGER
Indicates a hazardous situation that, if not avoided, will result in death or serious injury.
This applies to the most extreme situations.
nWarning
Indicates a hazardous situation that, if not avoided, could result in death or serious
injury.
,Caution
Indicates a hazardous situation that, if not avoided, could result in minor or moderate
injury.
Notice
Indicates information considered important, but not hazard-related (e.g. messages
relating to property damage).
Important
Indicates useful, extra information about the procedure you are performing.
NOTE: Indicates useful, extra information about the procedure you are performing.

nWarning
Follow these electrical requirements during installation of this equipment:
• All field wiring must conform to all applicable codes of the authority having jurisdiction.
It is the responsibility of the end user to provide the disconnect means to satisfy local
codes. Refer to rating plate for proper voltage.
• This appliance must be grounded.
• This equipment must be positioned so that the plug is accessible unless other means
for disconnection from the power supply (e.g., circuit breaker or disconnect switch) is
provided.
• Check all wiring connections, including factory terminals, before operation. Connections
can become loose during shipment and installation.
nWarning
Follow these precautions to prevent personal injury during installation of this
equipment:
• Installation must comply with all applicable equipment fire and health codes with the
authority having jurisdiction.
• Connect to a potable water supply only.
• To avoid instability the installation area must be capable of supporting the combined
weight of the equipment and product. Additionally the equipment must be level side to
side and front to back.
• Remove all removable panels before lifting and installing and use appropriate safety
equipment during installation and servicing. Two or more people are required to lift or
move this appliance to prevent tipping and/or injury.
• Do not damage the refrigeration circuit when installing, maintaining or servicing the
unit.
• Ice machines require a deflector when installed on an ice storage bin. Prior to using a
non-OEM ice storage system with this ice machine, contact the bin manufacturer to
assure their ice deflector is compatible.
• Prior to installing a non-OEM ice storage system with this ice machine, follow the
manufacturers installation procedures and verify the location and installation meets the
local/national mechanical codes and stability requirements.

nWarning
Follow these precautions to prevent personal injury while operating or maintaining
this equipment:
• Refer to nameplate to identify the type of refrigerant in your equipment.
• Only trained and qualified personnel aware of the dangers are allowed to work on the
equipment.
• Read this manual thoroughly before operating, installing or performing maintenance on
the equipment. Failure to follow instructions in this manual can cause property damage,
injury or death.
• Crush/Pinch Hazard. Keep hands clear of moving components. Components can move
without warning unless power is disconnected and all potential energy is removed.
• Moisture collecting on the floor will create a slippery surface. Clean up any water on the
floor immediately to prevent a slip hazard.
• Never use sharp objects or tools to remove ice or frost. Do not use mechanical devices
or other means to accelerate the defrosting process.
• When using cleaning fluids or chemicals, rubber gloves and eye protection (and/or face
shield) must be worn.
• Objects placed or dropped in the bin can affect human health and safety. Locate and
remove any objects immediately.
DANGER
Do not operate equipment that has been misused, abused, neglected, damaged, or
altered/modified from that of original manufactured specifications. This appliance is
not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given
supervision concerning use of the appliance by a person responsible for their safety.
Do not allow children to play with, clean or maintain this appliance without proper
supervision.

nWarning
Follow these precautions to prevent personal injury during use and maintenance of
this equipment:
• It is the responsibility of the equipment owner to perform a Personal Protective
Equipment Hazard Assessment to ensure adequate protection during maintenance
procedures.
• Do Not Store Or Use Gasoline Or Other Flammable Vapors Or Liquids In The Vicinity Of
This Or Any Other Appliance. Never use flammable oil soaked cloths or combustible
cleaning solutions for cleaning.
• All covers and access panels must be in place and properly secured when operating this
equipment.
• Risk of fire/shock. All minimum clearances must be maintained. Do not obstruct vents
or openings.
• Failure to disconnect power at the main power supply disconnect could result in serious
injury or death. The power switch DOES NOT disconnect all incoming power.
• All utility connections and fixtures must be maintained in accordance with the authority
having jurisdiction.
• Turn off and lockout all utilities (gas, electric, water) according to approved practices
during maintenance or servicing.
• Never use a high-pressure water jet for cleaning on the interior or exterior of this unit.
Do not use power cleaning equipment, steel wool, scrapers or wire brushes on stainless
steel or painted surfaces.
• Two or more people are required to move this equipment to prevent tipping.
• Locking the front casters after moving is the owner’s and operator’s responsibility.
When casters are installed, the mass of this unit will allow it to move uncontrolled on
an inclined surface. These units must be tethered/secured to comply with all applicable
codes.
• The on-site supervisor is responsible for ensuring that operators are made aware of the
inherent dangers of operating this equipment.
• Do not operate any appliance with a damaged cord or plug. All repairs must be
performed by a qualified service company.

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Part Number: 000016427 Rev 00 08/2020 9
Safety Notices
Requirements - Cleaning - Operation
Model Numbers ......................................................................11
Ice Machine Warranty Information ..........................................11
Warranty .................................................................................11
Warranty Registration..............................................................11
Location of Ice Machine...........................................................12
Ice Machine Clearance Requirements ......................................12
Ice Machine Heat of Rejection .................................................12
Electrical Requirements ...........................................................13
Water Service/Drains............................................................... 14
Water Supply ........................................................................ 14
Water Inlet Lines................................................................... 14
Drain Connections ................................................................ 14
Water Supply and Drain Line Sizing/Connections ................ 15
Descaling and Sanitizing ..........................................................15
General ................................................................................. 15
Detailed Descaling and Sanitizing Procedure........................ 15
Toggle Switch Operation....................................................... 15
Sanitizing Procedure ............................................................. 17
Remove Parts for Cleaning/Descaling................................... 18
Remedial Cleaning Procedure ..................................................22
Cleaning the Condenser Filter.................................................. 23
Cleaning the Condenser...........................................................23
Removal from Service/Winterization.......................................23
Air-cooled Models................................................................. 23
Ice Making Sequence of Operation ..........................................24
PKM0335/PKM0425/PKM0535 ............................................ 24
Control Board Timers PKM0335/PKM0425/PKM0535 ......... 25
Safety Limits PKM0335/PKM0425/PKM0535 ....................... 25
Energized Parts Chart PKM0335/PKM0425/PKM0535 ......... 27
Operational Checks PKM0335/PKM0425/PKM0535.................28
Ice Thickness Check PKM0335/PKM0425/PKM0535............ 28
Minimum/Maximum Slab Weights PKM0335/PKM0425/
PKM0535 .............................................................................. 28
Ice Making Sequence of Operation ..........................................29
PKU0155 ............................................................................... 29
Energized Parts Chart PKU0155 ............................................ 31
Table of Contents

10 Part Number: 000016427 Rev 00 08/2020
Table of Contents (continued)
Operational Checks PKU0155................................................... 32
Siphon System PKU0155 ....................................................... 32
Water Level PKU0155 ........................................................... 32
Water Level Check PKU0155................................................. 33
Ice Thickness Check PKU0155............................................... 33
Minimum/Maximum Slab Weight PKU0155......................... 34
Troubleshooting
PKM0335/PKM0425/PKM0535 Models
Control Board Test Mode .........................................................35
Diagnosing an Ice Machine that Will Not Run ..........................36
Ice Machine Does Not Cycle Into Harvest when the Harvest
Float Is Down/Closed............................................................... 36
Ice Machine Cycles Into Harvest Before the Harvest Float Is
Down/Closed........................................................................... 38
Ice Production Check ............................................................... 39
Installation/Visual Inspection Checklist ................................... 40
Water System Checklist ........................................................... 41
Ice Formation Pattern.............................................................. 42
Safety Limits............................................................................43
Safety Limit 1 ........................................................................ 43
Safety Limit 2 ........................................................................ 43
Safety Limit 3 ........................................................................ 44
Safety Limit Checklist............................................................ 45
Analyzing Discharge Pressure ..................................................48
Discharge Pressure High Checklist ........................................ 49
Freeze Cycle Discharge Pressure Low Checklist .................... 49
Analyzing Suction Pressure .....................................................50
Suction Pressure High Checklist............................................ 52
Suction Pressure Low Checklist............................................. 52
Harvest Valve ..........................................................................53
Harvest Valve Analysis .......................................................... 54
Comparing Evaporator Inlet/Outlet Temperatures ................... 56
Discharge Line Temperature Analysis .......................................57
Refrigeration Component Diagnostics......................................58
Procedure ............................................................................. 58
Final Analysis ........................................................................ 59
Refrigeration Component Diagnostic Chart .............................. 60

Part Number: 000016427 Rev 00 08/2020 11
Table of Contents (continued)
Troubleshooting
PKU0155 Model
Troubleshooting an Ice Machine Will Not Run .........................63
Troubleshooting Ice Thickness Control Circuitry....................... 64
Ice Machine Does Not Cycle Into Harvest when Water
Contacts the Ice Thickness Control Probe............................. 64
Ice Machine Cycles Into Harvest Before Water Contact
with the Ice Thickness Probe ................................................ 66
Ice Production Check ............................................................... 67
Installation and Visual Inspection Checklist .............................68
Water System Checklist ........................................................... 68
Ice Formation Pattern.............................................................. 70
Safety Limit Feature................................................................. 72
Safety Limits.......................................................................... 72
Safety Limit #1 ...................................................................... 72
Safety Limit #2 ...................................................................... 72
Safety Limit Stand-by Mode.................................................. 72
Safety Limit Checklist............................................................ 75
Analyzing Discharge Pressure ..................................................78
Discharge Pressure High Checklist ........................................ 79
Freeze Cycle Discharge Pressure Low Checklist .................... 79
Analyzing Suction Pressure .....................................................80
Suction Pressure High Checklist............................................ 82
Suction Pressure Low Checklist............................................. 82
Harvest Valve ..........................................................................83
Harvest Valve Analysis .......................................................... 84
Comparing Evaporator Inlet/Outlet Temperatures ................... 87
Discharge Line Temperature.....................................................88
Refrigeration Component Diagnostic Chart .............................. 89
Procedure ............................................................................. 89
Final Analysis ........................................................................ 90
Refrigeration Component Diagnostic Chart PKU0155 .......... 91
Ice Quality Is Poor — Cubes are Shallow, Incomplete
or White................................................................................ 93
Freeze Cycle Is Long, Low Ice Production ............................. 94
Ice Machine Runs and No Ice Is Produced............................ 95

12 Part Number: 000016427 Rev 00 08/2020
Table of Contents (continued)
Specifications
Main Fuse................................................................................ 97
Bin Switch ............................................................................... 98
Float Switch............................................................................. 99
Compressor Electrical Diagnostics.......................................... 101
Fan Cycle Control................................................................... 103
High Pressure Cutout (HPCO) Control..................................... 105
Refrigerant Recovery/Evacuation........................................... 106
Definitions .......................................................................... 106
Refrigerant Re-use Policy .................................................... 107
Recovery and Recharging Procedures ................................ 109
System Contamination Cleanup.......................................... 111
Determining Severity of Contamination ............................. 111
Cleanup Procedure ............................................................. 113
Severe System Contamination Cleanup Procedure............. 114
Liquid Line filter driers ........................................................ 115
Replacing Pressure Controls without Removing
Refrigerant Charge.............................................................. 116
Refrigerant Amount............................................................... 117
Ice Machine Normal Operation Charts ................................... 117
PKU0155 Self Contained Ice Machine................................. 118
PKM0335 Modular Ice Machine ......................................... 119
PKM0425 Modular Ice Machine ......................................... 120
PKM0535 Modular Ice Machine ......................................... 121
Wiring Diagram ..................................................................... 122
PKU0155 Wiring Diagram ................................................... 123
PKM0335/PKM0425/PKM0535 Wiring Diagram ................ 124
Electronic Control Board ........................................................ 125
Control Board Schematic PKM0335/PKM0425/PKM0535 . 125
Control Board Schematic PKU0155..................................... 126
Refrigeration Tubing Schematic ............................................. 127

Part Number: 000016427 Rev 00 08/2020 13
Model Numbers
This manual covers the following models:
PKU0155SA - Small Cube, Air-cooled, Undercounter Model
PKU0155FA - Full Cube Air-cooled, Undercounter Model
PKM0335SA - Small Cube, Air-cooled, Modular Model
PKM0335FA - Full Cube Air-cooled, Modular Model
PKM0425SA - Small Cube, Air-cooled, Modular Model
PKM0425FA - Full Cube Air-cooled, Modular Model
PKM0535SA - Small Cube, Air-cooled, Modular Model
PKM0535FA - Full Cube Air-cooled, Modular Model
PKB0425 - 22" Wide Modular Bin
PKB0535 - 30" Wide Modular Bin
Ice Machine Warranty Information
Warranty
For warranty information visit:
• Warranty Coverage Information
• Warranty Registration
• Warranty Verification
Warranty coverage begins the day the ice machine is installed.
Warranty Registration
Completing the warranty registration process is a quick and easy way to protect your
investment.
Requirements - Cleaning - Operation

14 Part Number: 000016427 Rev 00 08/2020
Requirements - Cleaning - Operation
Location of Ice Machine
The location selected for the ice machine must meet the following criteria. If any of these
criteria are not met, select another location.
• The location must be indoors.
• The location must be free of airborne and other contaminants.
• Air temperature: Must be at least 40°F (4°C) but must not exceed 110°F (43.4°C).
• The location must not be near heat-generating equipment or in direct sunlight.
• The location must be capable of supporting the weight of the ice machine and a full bin
of ice.
• The location must allow enough clearance for water, drain, and electrical connections in
the rear of the ice machine.
• The location must not obstruct airflow through or around the ice machine (condenser
air flow is in the back and out the sides). Refer to the chart for clearance requirements.
• The ice machine must be protected if it will be subjected to temperatures below
32°F (0°C). Failure caused by exposure to freezing temperatures is not covered by the
warranty.
Ice Machine Clearance Requirements
PKU0155 Top and Sides 5" (13 cm) Back 5" (13 cm)
PKM0335 Top and Sides 12" (30 cm) Back 5" (13 cm)
PKM0425 and PKM0535 Top and Sides 8" (20 cm) Back 5" (13 cm)
Do not obstruct ice machine vents or openings.
,Caution
The ice machine must be protected if it will be subjected to temperatures below
32°F (0°C). Failure caused by exposure to freezing temperatures is not covered by the
warranty.

Part Number: 000016427 Rev 00 08/2020 15
Requirements - Cleaning - Operation
Ice Machine Heat of Rejection
Series
Ice Machine
Heat of Rejection1
Air Conditioning2Peak
PKU0155 2200 2600
PKM0335 4600 5450
PKM0425 5400 6300
PKM0535 5300 6100
1B.T.U./Hour
2Because the heat of rejection varies during the ice making cycle, the figure shown is an average.
Ice machines, like other refrigeration equipment, reject heat through the condenser.
It is helpful to know the amount of heat rejected by the ice machine when sizing air
conditioning equipment where self-contained air-cooled ice machines are installed.
Electrical Requirements
Voltage
The maximum allowable voltage variation is ±10% of the rated voltage on the ice machine
model/serial number plate at start-up (when the electrical load is highest).
Fuse/Circuit Breaker
A separate fuse/circuit breaker must be provided for each ice machine.
Total Circuit Ampacity
The total circuit ampacity is used to help select the wire size of the electrical supply.
The wire size (or gauge) is also dependent upon location, materials used, length of run,
etc., so it must be determined by a qualified electrician.
Refer to ice machine data plate, for electrical requirements. The ice machine data plate
information overrides all other published data.
nWarning
All wiring must conform to local, state and national codes.
nWarning
The ice machine must be grounded in accordance with national and local electrical
code.

16 Part Number: 000016427 Rev 00 08/2020
Requirements - Cleaning - Operation
Water Service/Drains
WATER SUPPLY
Local water conditions may require treatment of the water to inhibit scale formation, filter
sediment, and remove chlorine odor and taste.
Important
If you are installing a water filter system, refer to the Installation Instructions supplied
with the filter system for ice making water inlet connections.
nWarning
For ice making, connect to a potable water supply only.
WATER INLET LINES
Follow these guidelines to install water inlet lines:
• Do not connect the ice machine to a hot water supply. Be sure all hot water restrictors
installed for other equipment are working. (Check valves on sink faucets, dishwashers,
etc.)
• If water pressure exceeds the maximum recommended pressure, 80 psig (5.5 bar)
obtain a water pressure regulator from your Koolaire distributor.
• Install a water shut-off valve for ice making potable water.
• Insulate water inlet lines to prevent condensation.
DRAIN CONNECTIONS
Follow these guidelines when installing drain lines to prevent drain water from flowing
back into the ice machine and storage bin:
• Drain lines must have a 1.5-inch drop per 5 feet of run (2.5 cm per meter), and must not
create traps.
• The floor drain must be large enough to accommodate drainage from all drains.
• Install a tee to vent the ice machine drain to the atmosphere.
• Insulate drain lines to prevent condensation.
• Install a separate bin drain and ice machine drain.
,Caution
Plumbing must conform to state and local codes

Part Number: 000016427 Rev 00 08/2020 17
Requirements - Cleaning - Operation
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
Water Temperature 40°F (4°C) min.
90°F (32.2°C) max.
Water Pressure 20 psi (1.38 bar) min.
80 psi (5.5 bar) max.
Ice Machine Fitting 3/8" Female Pipe Thread
Tubing Size Up to Ice Machine Fitting 3/8" (9.5 mm) min.
inside diameter
Descaling and Sanitizing
GENERAL
Descale and sanitize the ice machine every six months for efficient operation. If the
ice machine requires more frequent cleaning and sanitizing, consult a qualified service
company to test the water quality and recommend appropriate water treatment.
The ice machine must be taken apart for cleaning and sanitizing.
,Caution
Use only Manitowoc Ice Machine Cleaner/Descaler (part number 9405463) and
Sanitizer (part number 9405653). It is a violation of Federal law to use these solutions
in a manner inconsistent with their labeling. Read and understand all labels printed on
bottles before use.
DETAILED DESCALING AND SANITIZING PROCEDURE
Ice machine cleaner/descaler is used to remove lime scale and mineral deposits. Ice
machine sanitizer disinfects and removes algae and slime.
TOGGLE SWITCH OPERATION
Moving the toggle switch to clean will start a Clean cycle.
• Setting the ice machine to stop after the clean cycle: Place the toggle switch in the
clean position. The ice machine will stop after the clean cycle.
• Pausing the cleaning cycle: Move the toggle switch to Off. Moving the toggle switch to
clean will restart the clean cycle.
• Setting the ice machine to start ice making after the clean cycle: Place the toggle
switch in the Ice position more than 2 minutes into the clean cycle.

18 Part Number: 000016427 Rev 00 08/2020
Requirements - Cleaning - Operation
Step 1 Remove/open the front door to access the evaporator compartment. Ice must
not be on the evaporator during the descaling and sanitizing cycle. Set the toggle switch to
the OFF position after ice falls from the evaporator at the end of a harvest cycle. Or, set the
switch to OFF and allow the ice to melt off the evaporator
,Caution
Never use anything to force ice from the evaporator. Damage may result.
Step 2 Remove all ice from the bin.
nWarning
Wear rubber gloves and safety goggles (and/or face shield) when handling Ice Machine
Descaler/Cleaner or Sanitizer.
,Caution
Do not mix Ice Machine Cleaner/Descaler and Sanitizer solutions together. It is a
violation of Federal law to use these solutions in a manner inconsistent with their
labeling.
Step 3 Place the toggle switch in the CLEAN or WASH position. Water will flow through
the water dump valve and down the drain. Wait until the water trough refills, then add the
proper amount of ice machine cleaner/descaler.
Model Amount of Cleaner/Descaler
PKU0155 2 ounces (60 ml)
PKM0335/PKM0425/PKM0535 5 ounces (150 ml)
Step 4 Wait until the cycle is complete, then place the toggle switch in the off position
and disconnect power and water supplies to the ice machine (and dispenser when used).
Step 5 Remove parts for descaling.
Refer to the proper parts removal for your machine. Continue with Step 6 when the
parts have been removed. Refer to “PKM0335/PKM0425/PKM0535 Parts Removal” on
page 20 or “PKU0155 Parts Removal” on page 21.
Step 6 Mix a solution of cleaner/descaler and lukewarm water. Depending on the
amount of mineral buildup, a larger quantity of solution may be required. Use the ratio in
the table below to mix enough solution to thoroughly clean all parts.
Solution Type Water Mixed with
Cleaner/Descaler 1 gal. (4 l) 16 oz (500 ml) cleaner/descaler

Part Number: 000016427 Rev 00 08/2020 19
Requirements - Cleaning - Operation
Step 7 Use half of the cleaner/descaler & water solution to clean all components. The
solution will foam when it contacts lime scale and mineral deposits; once the foaming
stops use a soft bristle brush, sponge or cloth (not a wire brush) to carefully clean the
parts. Soak the parts for 5 minutes (15 – 20 minutes for heavily scaled parts). Rinse all
components with clean water.
Step 8 While components are soaking, use half of the cleaner/descaler & water solution
to clean all foodzone surfaces of the ice machine and bin. Use a nylon brush or cloth to
thoroughly clean the following ice machine areas:
• Evaporator plastic parts – including top, bottom and sides
• Bin bottom, sides and top
• Rinse all areas thoroughly with clean water.
SANITIZING PROCEDURE
Step 9 Mix a solution of sanitizer and warm water.
Solution Type Water Mixed With
Sanitizer 3 gal. (12 l) 2 oz (60 ml) sanitizer
Step 10 Use half of the sanitizer/water solution to sanitize all removed components. Use
a spray bottle to liberally apply the solution to all surfaces of the removed parts or soak
the removed parts in the sanitizer/water solution. Do not rinse parts after sanitizing.
Step 11 Use half of the sanitizer/water solution to sanitize all foodzone surfaces of the
ice machine and bin. Use a spray bottle to liberally apply the solution. When sanitizing, pay
particular attention to the following areas:
• Evaporator plastic parts - including top, bottom and sides
• Bin bottom, sides and top
Do not rinse the sanitized areas.
Step 12 Replace all removed components.
Step 13 Wait 20 minutes.
Step 14 Reapply power and water to the ice machine and place the toggle switch in the
CLEAN or WASH position.
Step 15 Wait until the water trough refills, then add the proper amount of ice machine
sanitizer to the water trough.
Model Amount of Sanitizer
PKU0155 2.2 ounces (66 ml)
PKM0335/PKM0425/PKM0535 3 ounces (90 ml)
After the sanitize cycle is complete move the toggle switch to the ice position to start ice
making.

20 Part Number: 000016427 Rev 00 08/2020
Requirements - Cleaning - Operation
REMOVE PARTS FOR CLEANING/DESCALING
nWarning
Disconnect electric power to the ice machine at the electric switch box before
proceeding.
PKM0335/PKM0425/PKM0535 Parts Removal
A. Remove the water curtain
• Gently flex the curtain in the center and remove it from the right side.
• Slide the left pin out.
B. Remove the water trough
• Depress tabs on right and left side of the water trough.
• Allow front of water trough to drop as you pull forward to disengage the rear pins.
C. Remove the ice thickness and harvest float switches
• Pull the float switch straight down to disengage.
• Lower the float switch until the wiring connector is visible.
• Disconnect the wire lead from the float switch.
• Remove the float switch from the ice machine.
D. Remove the water distribution tube.
NOTE: Distribution tube thumbscrews are retained to prevent loss. Loosen
thumbscrews but do not pull thumbscrews out of distribution tube.
• Loosen the two outer screws (do not remove screws completely they are retained to
prevent loss) and pull forward on the distribution tube to release from slip joint.
• Disassemble distribution tube by loosening the two (2) middle thumbscrews and
dividing the distribution tube into two pieces.
• Proceed to page 18 Step 6.
A
B
C
D