Parker CHELSEA User manual

Bulletin HY25-1650-M1/US
Owner’s Manual
Electronic
Overspeed Control
Effective: January 2011
Supercedes: HY25-1650-M1/US
October 2010

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
IIII
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR
RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
This document and other information from Parker-Hannifin Corporation, its subsidiaries and authorized distributors
provide product or system options for further investigation by users having technical expertise.
The user, through its own analysis and testing, is solely responsible for making the final selection of the system and
components and assuring that all performance, endurance, maintenance, safety and warning requirements of the
application are met. The user must analyze all aspects of the application, follow applicable industry standards, and
follow the information concerning the product in the current product catalog and in any other materials provided from
Parker or its subsidiaries or authorized distributors.
To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based
upon data or specifications provided by the user, the user is responsible for determining that such data and
specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components
or systems.
WARNING — User Responsibility
The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its
authorized distributors. This offer and its acceptance are governed by the provisions stated in the “Offer of Sale”.
Offer of Sale
© Copyright 2011, Parker Hannifin Corporation, All Rights Reserved
The Chelsea®Power Take-Off or its components shipped with this owner’s manual may be manufactured under one
or more of the following U.S. patents:
4610175 5228365 4597301 5645363 6151975 6142274 6260682 7159701 B2 7510064
US7690450 B2
Other patents pending.
Patent Information

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
III
Bulletin HY25-1650-M1/US
Contents
Owner’s Manual
Electronic Overspeed Control
III
General Safety Information
Safety Information............................................................................1
Foreword..........................................................................................2
Installation Instructions
The Control......................................................................................3
Installation P.T.O. Components ........................................................4
Wiring the Control Unit ....................................................................5
Electronic Overspeed (E.O.C.) Installation Sketch for 270,
271,800 and 852 Series (Allison) ....................................................6
Electronic Overspeed (E.O.C.) Installation Sketch for 230
and 231 Series 12 and 24 Volt.........................................................7
Electronic Overspeed (E.O.C.) Installation Sketch for 885 Series
12 and 24 Volt..................................................................................8
Electronic Overspeed (E.O.C.) Installation Sketch for 270 Series
12 and 24 Volt..................................................................................9
Electronic Overspeed (E.O.C.) Installation Sketch for 270
and 271 Series (Allison 1000, 2000/2400) ....................................10
Electronic Overspeed (E.O.C.) Installation Sketch for 230
and 231 Series 12 and 24 Volt (Allison 1000, 2000/2400).............11
Electronic Overspeed (E.O.C.) Installation Sketch for 277, 278
and 859 Series for Allison (SK-472) ..............................................12
Electronic Overspeed (E.O.C.) Installation Sketch for 277, 278
and 859 Series for Caterpillar (SK-473) ........................................13
Electronic Overspeed (E.O.C.) Installation Sketch for 247 Series . 14
247 Series Wiring Chart ................................................................15
Electronic Overspeed (E.O.C.) Installation Sketch for 890 Series . 16
Electronic Overspeed (E.O.C.) Installation Sketch for 248 Series . 17
248 Series Wiring Chart ................................................................18
Control Adjustment Instructions.......................................................19-21
Operating Instructions .....................................................................22-23
Troubleshooting ....................................................................................24
P.T.O. Maintenance ...............................................................................25
Offer of Sale .........................................................................................27

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
IV

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
1
Bulletin HY25-1650-M1/US
General Information
Owner’s Manual
Electronic Overspeed Control
WARNING: Before selecting or using this product, it is important that
you read and follow the product warnings and instructions in the Owner’s
Manual.
WARNING: Failure or improper use of the Parker Chelsea Electronic
Overspeed Control, Power Take-Offs (P.T.O.s) or related accessories can
cause death, personal injury and property damage. Possible consequences
of failure or improper use of these products include but are not limited to the
following:
•Operators,bystandersorequipmentbeingcrushed,impactedorcaused
to fall due to the sudden, inadvertent, unintended, uncontrolled or
unexpected movement, stopping or starting of devices such as lifts,
hoists, blowers, augers or pumps which are driven by a P.T.O. This can
occur when the P.T.O. is improperly or unexpectedly engaged or
disengaged.
•Rotatingshaftinjuriesresultingfromskin,hands,clothing,hairorthelike
getting caught in the rotating shaft connected to a P.T.O. or the rotating
portion of the equipment driven by the P.T.O.
WARNING: Always remember to disengage the P.T.O. when the driven
equipment is not in operation.
WARNING: When the Parker Chelsea Electronic Overspeed
Control is set up in Auto Re-engagement Mode, the P.T.O. will
automatically engage when the engine RPM reaches the lower preset point
thus causing the driven equipment to become operable. The vehicle or
equipment operator must therefore make certain that other persons and
property are not in a position to be crushed, impacted, caused to fall or
otherwise injured when re-engagement occurs.
WARNING: Original equipment manufacturers incorporating the Parker
Chelsea Electronic Overspeed Control into their equipment must undertake a
failure mode and effect analysis (FMEA) to identify potential hazards created
by the Automatic Re-engagement Mode. They must then incorporate fail safe
designs into their equipment to protect operators, other persons and property
from injury associated with unexpected disengagement or re-engagement of
the P.T.O.
Safety Information
These instructions are for your safety and the safety of the end user. Read
them carefully until you understand them.
General Safety Information

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
2
What It Is
The Chelsea Electronic Overspeed Control (E.O.C.) is an electronic
controller that prevents the Power Take-Off and driven equipment from being
operated at excessive speeds. This is done by automatically disengaging the
Power Take-Off whenever a pre-set overspeed R.P.M. is exceeded.
How It Works
The Chelsea Electronic Overspeed Control (E.O.C.) energizes the solenoid
valve that engages the clutch in the Power Take-Off. The control also
measures the speed of the Power Take-Off and electronically compares it to
the pre-set overspeed R.P.M. setting. As long as the operating speed is less
than the high limit, the Power Take-Off will operate in a normal manner.
If the operating speed exceeds the selected high limit, the control will
automatically de-energize the solenoid valve and the Power Take-Off clutch
will disengage. The clutch will remain disengaged until the speed has been
reduced to the pre-set low limit.
Foreword
Bulletin HY25-1650-M1/US
General Information
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
3
Bulletin HY25-1650-M1/US
Installation Instructions
Under the Dash:
Select a convenient location where the indicator lights will be visible and
the ON-OFF button is accessible to the operator. Mark two mounting hole
locations, using the control panel mounting bracket as a template.
CAUTION: Do not drill into wires or a vital part on the opposite side of the
dashboard – check before drilling.
Then, drill two holes and temporarily mount the control to the dashboard, us-
ing the 1/4" screws, lock-washers and nuts provided.
On the Engine Housing:
Tilt cabs may require the control to be mounted on the engine housing,
with the mounting bracket and screws provided. Mark two mounting hole
locations, using the mounting bracket as a template.
CAUTION: Do not drill into wires or a vital part on the opposite side of the
engine housing – check before drilling.
Then drill two holes and temporarily mount the control and mounting bracket
to the engine housing.
NOTE: Adjustments will be required at the bottom of the control.
(See Page 21)
The Control
On/Off = Red when
System is “On”
Over Speed = Yellow
P.T.O. Engaged = Red
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
4
The Solenoid Valve
Select a convenient location, near the Power Take-Off to allow the use of
shorter hoses, but away from moving parts and the hot exhaust pipe. Mark
the mounting hole locations, using the solenoid valve mounting bracket as a
template.
CAUTION: Do not drill into wires or a vital part on the opposite side of the
mounting surface – check before drilling.
Attach the solenoid valve to the mounting bracket using the screws provided
and mount them to the vehicle.
The Pressure Switch
Install the pressure switch, the screen adapter and the three hoses, as
shown in the SK drawing for your Power Take-Off.
The Speed Pick-up
In case the speed pick-up was not installed at the factory, remove and
discard the plug in the Power Take-Off case over the input gear. Install the
speed pick-up and tighten it with a crowsfoot adapter and a torque wrench
to approximately 24-lb. ft. torque. Proceed with the electrical hook-up of the
control system, as shown in the SK drawing for your Power Take-Off.
Routing the Cables
Tilt Cabs: To permit the cab to tilt, the cables must be routed around the
cab pivot point.
Conventional Cabs: Holes in the firewall are usually provided for the
speedometer cable or wiring harnesses and the control cables can usually
be routed through them.
A Through-Hole: If an existing through-hole cannot be used, drill a 1"
diameter hole and install the split rubber grommet provided, after all the
wires have been installed.
CAUTION: Do not drill into wires or a vital part on the opposite side – check
before drilling.
Bulletin HY25-1650-M1/US
Installation Instructions
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
5
Bulletin HY25-1650-M1/US
Installation Instructions
Input Power-the Red Wire: Connect to a source of power that is “switched”
or hot only when the key is in the ON position, using the instant connector
provided. This unit can be wired to 12V or 24V DC supply (Mininum 5 amp).
Input Ground-the Black Wire: Good ground connections are important . . .
directly on the frame is best . . . fiberglass panels won’t work at all.
Wiring the Solenoid Valve
Ground-either Red wire: Attach the ring connector provided and make a
good ground connection, preferably on the truck frame.
Power-the “other” Red wire: Connect the other red wire to the green wire
with the butt connector provided. Route this green wire to the control unit and
connect it to the green wire.
Wiring the Pressure Switch
Ground: Using the black wire provided in the kit, push the bullet connector
end onto either terminal of the pressure switch. Make a good ground connec-
tion with the other end of the black wire, on the truck frame. Using the blue
wire provided in the kit, push the bullet connector onto the other terminal of
the pressure switch. Route the wire to the control unit and connect it to the
blue wire.
Wiring the Speed Pick-up
Selecting the Cable: A ten foot long cable is provided in the kit, which
should be adequate for most installations. Additional five or ten foot long
cables are available and can be connected end-to-end if necessary.
Dealing with Cable “Extra” Length: The cables are specially shielded and
must not be cut or spliced. Any extra length should be coiled up and tucked
away under the dash.
Routing & Protecting the Cables: Bundle together the speed pick-up cable,
the pressure switch wire and the solenoid wire. Route the wires away from
moving parts, hot pipes, sharp edges and up out of the way.
Wiring the Control Unit
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
6
Bulletin HY25-1650-M1/US
Installation Sketch
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 270, 271, 800 and 852 Series (Allison) (SK-466)
IN CYL
16 AWG Wire, Red Connect to 12 VDC or 24 VDC, 5A Minimum Ignition Circuit
Ground
16 AWG Wire, Black Ring Connector
Electronic Overspeed Controller - 329650X
(1.0")
(1.8")
(4.9")
379265 Grommet
Drill 1" Hole in Firewall
Slice Grommet Insert Wires and Push into Hole in Firewall
NOTE: 1) Strip Wire Ends 0.25" Prior to Installing into Connector
14 AWG Wire, Green with Butt Connector 14 AWG Wire, Blue with Butt Connector
Connector with 2-Wire Cable
379254-13 14 AWG Wire, Blue Bullet Connector 328923-10X 2-Wire Cable 10 Ft. with Male and Female Connector 328923-5X Optional 5-Ft.
379243 Speed Sensor Port B
Port C
271 Series P.T.O.
Port A
From Trans to Valve 329087X Pressure Lube Hose
379254-3 14 AWG Wire, Green with Butt Connector
Ground
379253 14 AWG Ring Connector
18 AWG Wire, Red
379449 Screen Adapter
379258 Bracket
379254-14 14 AWG Wire, Black with Ring and Bullet Connector
379547 Pressure Switch
378966 Street Tee
.125"-27 NPTF
379193-1 (12 Volt) Green 379686-2 (24 Volt) Black Solenoid Valve
From Valve to P.T.O.
5000357-7 Washer
500457-6 Screw
Ground
328075X Pressure Lube Hose (2)
Dump Line Back to Transmission thru P.T.O.
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
7
Bulletin HY25-1650-M1/US
Installation Sketch
NOTE: Strip Wire Ends 0.25" Prior to Installing Connector
379265 Grommet
Drill 1" Hole in Firewall
Slice Grommet Insert Wires and Push into Hole in Firewall
16 AWG Wire, Red Connect to 12 VDC or 24 VDC, 5A Minimum Ignition Circuit
Ground
16 AWG Wire, Black with Ring Connector
Electronic Overspeed Controller - 329650X
(1.0") (1.8")
(4.9")
2-Wire Shielded Cable with Connector
16 AWG Wire, Blue with Butt Connector
16 AWG Wire, Green with Butt Connector
379254-8 14 AWG Wire, Green with Fork Connector
Note Direction of Arrows
Air Supply 90-140 P.S.I.
378416 Hex Nipple
378414 Pressure Protection Valve
379131-1 Reducer
379042 Connector
379254-13 14 AWG Wire, Blue Bullet Connector
328923-10X 2-Wire Shielded Cable, 10 Ft., with Male and Female Connectors. 328923-5X Optional 5-Ft.
379917 Speed Sensor
230 Series
379042 Connector
378966 Street Tee
379547 Pressure Switch
379254-14 14 AWG Wire, Black with Ring and Bullet Connector
Ground
379306 Fork Connector
379043 Elbow
378966 Street Tee
379044-7 Nylon Tubing
379253 Ring Connector
Ground
379106 Breather
379303-1 Valve - 12 Volt 379303-2 Valve - 24 Volt
379258 Bracket
379043 Elbow
500357-7 Washer
500456-6 Screw
379305 Pressure Switch
379044-7 Plastic Tubing
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 230 and 231 Series 12 and 24 Volt (SK-467)
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
8
Bulletin HY25-1650-M1/US
Installation Sketch
(4.9")
UP
IN CYL
R
CHELSEA
CHELSEA
NOTE: 1) Strip Wire Ends .25" Prior to Installing in Connectors
378414 Pressure Protection Valve
378416 Hex Nipple
Air Supply 90-140 PSI
Note Direction of Arrows
379042 Connector
379044-7 Plastic Tubing
16 AWG Wire, Black Connect to Ground
16 AWG Wire, Red Connect to 12 VDC or 24 VDC, 5A Minimum Ignition Circuit
379306 Spade Terminal 379305 Pressure Switch
379306 Spade Terminal
379258 Bracket
378966 Street Tee
379043 Elbow
379303-1 Solenoid 12V 379303-2 Solenoid 24V
500457-6 Screw
500357-7 Washer
379043 Elbow
379106 Breather
379253 Ring Connector Connect to Ground
Electronic Overspeed Controller - 329650X
(1.8")
(1.0")
16 AWG Green Wire
16 AWG Blue Wire
Speed Sensor Extension Cable 328923-10X (10 Ft Supplied w/E.O.C.) 328923-5X (5 Ft Optional Cable) 379254-13
14 AWG Wire, Blue
379253 Ring Connector Connect To Ground
Run Wires Through Grommet In Firewall
379254-8 14 AWG Wire, Green
379042 Connector
379044-7 Plastic Tubing
885 Series P.T.O.
378966 Street Tee
379547 Pressure Switch
379253 Ring Connector
379254-14 14 AWG Wire, Black
1.00" Hole in Firewall
379265 Grommet
Slice Grommet Insert in Hole in Firewall
Run Wires Through Grommet in Firewall
379243 Speed Sensor
28-P-171 O-Ring
Reference Kits: 328388-52X = Air Shift 12 VDC with E.O.C. 328388-53X = Air Shift 24 VDC with E.O.C.
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 885 Series 12 and 24 Volt (SK-468)
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
9
Bulletin HY25-1650-M1/US
Installation Sketch
NOTES: 1) For Installation Parts Refer to Kits: 328929-12X & -24X = Installation Kit 329049X = Special Fitting Kit 2) Direction of Oil Flow 3) Strip Wire Ends 0.25" Prior to Installing Connector
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 270 Series 12 and 24 Volt AISIN Automatic
Transmission (Models A443, A445 & A450-43LE)
(SK-469)
379749 Male Connector
IN CYL
EXH
FROM TRANSMISSION (HIGH PRESSURE) -TO- VALVE (INLET)
FROM VALVE -TO-
P.T.O. (INLET PORT-A)
328923-10X MALE & FEMALE CONNECTOR CABLE (10 FT.)
SUPPLIED WITH SPEED LIMITER
OPTIONAL: 328923-5X CABLE (5 FT.)
MUST BE ORDERED SEPERATE BY CUSTOMER
FROM VALV E (EXHAUST) -T O- P. T . O. (DUMP PORT-B)
Ground
379253 Ring Connector
329087X Pressure Hose
379449 Screened Adapter
379254-3 14 AWG Wire, Green with Butt Connector
Connector with 2-Wire Shielded Cable
16 AWG Wire, Red Connect to 12 VDC or 24 VDC, 5A Minimum Ignition Circuit
Ground
16 AWG Wire, Black with Ring Connector
Electronic Overspeed Controller - 329650X
(1.0")
(1.8")
(4.9")
16 AWG Wire, Green with Butt Connector
379258 Mounting Bracket 500457-6 (2)
Mounting Screw
500357-1 (2) Lock Washer
.250"- 18 NPTF
379280 Flare Fitting
379686-1 12 Volt (Green) 379686-2 24 Volt (Black)
379280 Flare Fitting
16 AWG Wire, Blue with Butt Connector
379254-13 16 AWG Wire, Blue with Ring Connector
379547 Pressure Switch
Port A
On Closed Bearing Cap
329087X Pressure Hose
.125"-27 NPTF
378966 Street Tee Screened
Ground Drill 1" Hole
in Firewall for 379265 Grommet
379265 Grommet - Slice Grommet - Insert Wires - Push into Hole thru Firewall
379254-14 14 AWG Wire, Black with 2-Ring Connectors
Port C
P.T.O. Mounting Surface S.A.E. 6 Bolt P.T.O. Opening Remove Cover on Transmission Before Installing P.T.O.
High Pressure Port
379749 Male Connector
329130-5X High Pressure Hose Ass'y
.125"- 27 NPTF
Port B
379243 Speed Sensor Locate over Gear Teeth
NOTE: Insert Hose Fittings at Plastic Plug Locations (Remove & Discard Plugs)
Chelsea Power-Take-Off Model: 270 Series/Rear View of P.T.O.
329087X Pressure Lube Hose Connect to Low Pressure Port on Transmission and to P.T.O. Idler Shaft Lube Port “C”
Aisin Automatic Transmission
Rear View
Low Pressure Port
Top View Left View
Line Pressure
▼
Lube Pressure
▼
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
10
Bulletin HY25-1650-M1/US
Installation Sketch
IN CYL
NOTES: 1) Hoses Must Be Ordered Separately. Order Hose Kit #329365X 2) Strip Wire Ends 0.25" Prior to Installing Connector
16 AWG Wire, Red Connect to 12 VDC or 24 VDC, 5A Minimum Ignition Circuit
Ground
16 AWG Wire, Black Ring Connector
Electronic Overspeed Controller - 329650X
(1.0") (1.8")
(4.9")
379265 Grommet
Drill 1" Hole in Firewall
Slice Grommet Insert Wires and Push into Hole in Firewall
Reference Kits 328929-12X = Hyd. Shift Installation Kit (12V With E.O.C.) 328929-24X = Hyd. Shift Installation Kit (24V With E.O.C.) 329365X = Hose Kit (Must Be Ordered Separately) 329336-2X = J1-6 Feedback Kit (Must Be Ordered Separately) 329297X = Fitting Kit (Allison 1000, 2000 / 2400 Only)
379254-18 14 AWG Wire, Green
Ground
14 AWG Wire, Green with Butt Connector
14 AWG Wire, Blue with Butt Connector
Connector with 2-Wire Cable
379254-13 14 AWG Wire, Blue Bullet Connector
328923-10X 2-Wire Cable 10 Ft. with Male and Female Connector 328923-5X Optional 5-Ft.
379917 Speed Sensor
Port B
Port C
271 Series P.T.O. Port A
379486 90° Fitting w/O-Ring
Main Pressure from Transmission
379254-3 14 AWG Wire, Green with Butt Connector
Pre-2005 - Connect to J1-6 (TCM) or Wire #106 Ground 2005-Later - Connect to 43 (TCM) or Wire #143
379253 14 AWG Ring Connector
18 AWG Wire, Red
329075-2X Pressure Lube Hose
379449 Screen Adapter
379258 Bracket
379686-1 (12 Volt) Green 379686-2 (24 Volt) Black Solenoid Valve
From Valve to P.T.O.
Dump Line Back to Transmission thru P.T.O.
5000357-7 Washer
500457-6 Screw 328075X
Pressure Lube Hose (2)
Ground
379254-14 14 AWG Wire, Black With Ring and Bullet Connector
379547 Pressure Switch
378966 Street Tee
.125"-27 NPTF
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 270 and 271 Series (Allison 1000, 2000/2400)
(SK-470)
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
11
Bulletin HY25-1650-M1/US
Installation Sketch
NOTES: 1) Installation For Allison 1000, 2000 & 2400 Transmissions 2) Strip Wire Ends 0.25" Prior to Installing Connector
Ground
Reference Kits 328388-52X = Air Shift Installation Kit (w/E.O.C., 12V) 328388-53X = Air Shift Installation Kit (w/E.O.C., 24V) 329336-2X = J1-6 Feedback Kit (Must Be Ordered Separately)
379265 Grommet
Drill 1" Hole in Firewall
Slice Grommet Insert Wires and Push into Hole in Firewall
16 AWG Wire, Red Connect to 12 VDC or 24 VDC, 5A Minimum Ignition Circuit
16 AWG Wire, Black with Ring Connector
(4.9")
(1.8")
(1.0")
Electronic Overspeed Controller - 329650X
379917 Speed Sensor
230 Series
328923-10X 2-Wire Shielded Cable. 10 Ft., with Male and Female Connectors. 328923-5X Optional 5-Ft.
379254-13 14 AWG Wire, Blue Bullet Connector
2-Wire Shielded Cable with Connector
16 AWG Wire, Blue with Butt Connector
16 AWG Wire, Green with Butt Connector
379254-8 14 AWG Wire, Green with Fork Connector
379254-18 Wire with Butt Connector
Air Supply 90-140 P.S.I.
378416 Hex Nipple
378414 Pressure Protection Valve
379131-1 Reducer
379042 Connector
Note Direction of Arrows Pre-2005 - Connect to J1-6 (TCM) or Wire #106
2005-Later - Connect to 43 (TCM) or Wire #143
379044-7 Nylon Tubing
378966 Street Tee
379043 Elbow
Ground
379253 Ring Connector
379306 Fork Connector
Ground
379254-14 14 AWG Wire, Black with Ring and Bullet Connector
379547 Pressure Switch
378966 Street Tee
379042 Connector
379044-7 Plastic Tubing
379305 Pressure Switch
500456-6 Screw
500357-7 Washer
379043 Elbow
379258 Bracket
379303-1 Valve - 12 Volt 379303-2 Valve - 24 Volt
379106 Breather
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 230 and 231 12 and 24 Volt (Allison 1000,
2000/2400) (SK-471)
Owner’s Manual
Electronic Overspeed Control

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
12
Bulletin HY25-1650-M1/US
Installation Sketch
NWD
PAT.
NWD
PAT.
NOTES: 1) Strip Wire Ends .25" Prior to Installing in Butt Connector (As Necessary) 2) Reference Kit 329076X
Electrical Ground of Cab or Frame
Accepts .25" Screw
16 AWG Wire, Black Connect To Ground
16 AWG Wire, Red Connect to 12 VDC or 24 VDC, 5A Minimum Ignition Circuit
2 Wire Shielded Cable
(1.0")
(1.8")
Electronic Overspeed Controller - 329650X
(4.9")
Speed Sensor Extension Cable 328923-10X (10 Ft. Supplied w/E.O.C.) 328923-5X (5 Ft. Optional Cable)
Run Cable through Grommet in Firewall
16 AWG Wire, Blue with Butt Connector
16 AWG Wire, Green with Butt Connector
Slice Grommet. insert in Hole in Firewall
379265 Grommet
Drill 1" Hole in Firewall
“Blue” Wire
“Red” Wire
Saddle Splice Connector Supplied by Installer
Wire “A” 16 AWG Wire Supplied by Installer
379243 Speed Sensor
28-P-171 O-Ring
Rear Cover Shown in “P” Option Position
Scale = 1:2
Hose per Chart (Order Separately)
277/278/859
Series
Run Wires through Grommet in Firewall
379504 Valve Connector and Wire Assembly
“Black” Wire
Accepts #10 Screw
Electrical Ground of Cab or Frame
379502 Pressure Switch
Rear Cover Shown in Standard “P” Option Position
379486 90° Fitting Install in Transmission High Pressure Port MD: Left or Right Side HD: Left Side Only
Hose Per Chart (Order Separately)
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 277, 278 & 859 Series for Allison (SK-472)
Owner’s Manual
Electronic Overspeed Control
NOTE: Pre-2005 Connect to J1-6 (TCM) or Wire #106 2005 and Later - Connect 43 (TCM) or Wire #143

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
13
Bulletin HY25-1650-M1/US
Installation Sketch
NOTES: 1) Strip Wire Ends .25" Prior to Installing in Butt Connector (As Necessary) 2) Caution: Torque Values Must Be Maintained 120-144 Lb In 3) Reference Kit: 329444X Installation Kit 4) See Sk-414 For Hose Lengths
Electrical Ground of Cab or Frame
Accepts .25" `Screw
16 AWG Wire, Black Connect to Ground
16 AWG Wire, Red Connect to 12 VDC or 24 VDC, 5A Minimum Ignition Circuit
2 Wire Shielded Cable
Electronic Overspeed Controller - 329650X
(1.0")
(1.8")
(4.9")
Speed Sensor Extension Cable 328923-10X (10 Ft. Supplied w/E.O.C.) 328923-5X (5 Ft. Optional Cable)
Run Cable through Grommet in Firewall
Saddle Splice Connector Supplied by Installer
16 AWG Wire, Blue with Butt Connector
16 AWG Wire, Green with Butt Connector
379265 Grommet
Slice Grommet. Insert in Hole in Firewall
Drill 1" Hole in Firewall
“Blue” Wire
“Red” Wire
Wire “A” 16 AWG Supplied by Installer
Speed Sensor
28-P-171 O-Ring
This Hose Purchased Separately
379812 Straight Fitting Install in Transmission High Pressure Port
277/278/859 Series
Run Wires through Grommet in Firewall
379928 Valve Connector and Wire Assembly
“Black” Wire
Accepts #10 Screw Electrical Ground
of Cab or Frame
379502 Pressure Switch
4
2
1
1
Electronic Over Speed Control (E.O.C.) Installation Sketch
for 277, 278 and 859 Series for Caterpillar (SK-473)
Owner’s Manual
Electronic Overspeed Control
NOTE: Pre-2005 Connect to J1-6 (TCM) or Wire #106 2005 and Later - Connect 43 (TCM) or Wire #143

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
14
Bulletin HY25-1650-M1/US
Installation Sketch
RELAY
2
34
1
B
A
NOTES: 1) Reference Kits: 329255-12X 329601X 2) Caution: Torque Values Must Be Maintained 120-144 In-Lb 3) Strip Wire Ends 0.25" Prior to Installing Connector
Slice Grommet. Insert in Hole in Clutch Master Cylinder Seal Assembly
379817 Grommet
Cut 1.00" Hole in Firewall Near Ford Clutch Master Cylinder Seal Assembly
Firewall Pass-through Installation
The Clutch Master Cylinder Seal Assembly is on the Driver’s Side Near the Brake Master Located on the Engine Compart- ment Firewall Cylinder
Connector and 2-Wire Shielded Cable
(4.9")
(1.8") (1.0")
Electrical Ground of Cab
Accepts 1/4" Screw
16 AWG Wire, Black Connect to Ground
3/8" Stud Size Ring Terminal
16 AWG Wire, Red Connect per Wiring Chart page 15
Red
Black
See Wiring Chart page 15
White W/Blue Stripe
Saddle Splice Connector. Supplied by Installer
16 AWG Wire r Supplied by Installer
Run Cable through Grommet in Firewall
Speed Sensor Extension Cable 328923-10X (10 Ft Supplied w/E.O.C.) 328923-5X (5 Ft Optional Cable)
16 AWG Wire, Blue
16 AWG Wire, Green
Connect to Blue Wire from EO.C.
Connect to Green Wire from EO.C.
White Black Yellow Black Red
See Wiring Chart page 15
379243 Speed Sensor
28-P-171 O-Ring
379698 90° Elbow
High Pressure Port to 5R110 Transmission
2 See Torque Note
379502 Pressure Switch
329232-1X Hose Assembly
Electronic Overspeed Controller - 329650X
329599X Wire Harness
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 247 Series 12 and 24 Volt (SK-474)
Owner’s Manual
Electronic Overspeed Control
Wire “A” See Chart on
Page 15

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
15
247 Series Wiring Chart with E.O.C.
Bulletin HY25-1650-M1/US
Wiring Chart
Owner’s Manual
Electronic Overspeed Control
Chelsea
Wire
2005-2007 Super
Duty w/6.0L Diesel
2005-2007 Super
Duty
w/6.8L Gas
2008-2010 Super
Duty
w/6.4L Diesel
2008-2010 Super
Duty w/6.8L Gas
2005-2009
LCF
w/4.5L Diesel
2011
Super Duty
w/6.8L Gas
1 Not Used
Ford Circuit #2246 Orange w/Yellow Stripe
Not Used Ford Circuit
#CE914 Green Not Used Ford Circuit
#CE914 Green
2 Not Used
Ford Circuit #294 White w/Lt. Blue Stripe
Not Used Ford Circuit
#CBP44 Purple Not Used
Ford Circuit #CDC64 (1) White w/Blue Stripe
3 Not Used
Ford Circuit #2243 Orange w/White Stripe
Not Used
Ford Circuit #CE924 Blue w/Green Stripe
Not Used
Ford Circuit #CE924 Blue w/Green Stripe
4 Ground
Ford Circuit #2244 Orange w/Lt. Blue Stripe
Ground
Ford Circuit #CE326 Blue w/White Stripe
Ground
Ford Circuit #CE326 Blue w/White Stripe
E.O.C. Box Wire “A”
Ford Circuit #2242 Orange
Ford Circuit #2242 Orange
Ford Circuit #CE912 Yellow w/Green Stripe
Ford Circuit #CE912 Yellow w/Green Stripe
Ford/International Circuit #2335 Purple w/Lt. Green Stripe
Ford Circuit #CE912 Yellow w/Green Stripe
E.O.C. Box Red
Ford Circuit #294 White w/Lt. Blue Stripe
Ford Circuit #294 White w/Lt. Blue Stripe
Ford Circuit #CBP44 Purple
Ford Circuit #CBP44 Purple
Ford/International Circuit #1043 Dark Green w/Yellow Stripe
Ford Circuit #CDC64 (1) White w/Blue Stripe
NOTE: (1) Trucks built after May 15, 2010. For trucks built prior to May 15, 2010 this Ford wire is Yellow w/ Orange stripe.

Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
16
Bulletin HY25-1650-M1/US
Installation Sketch
NOTES: 1) Strip Wire Ends .25" Prior to Installing in Spade Terminal or Butt Connector (As Necessary) 2) Reference Kit 329076X
Electrical Ground of Cab or Frame
Accepts .25" Screw
16 AWG Wire, Red Connect to 12 VDC or 24 VDC
16 AWG Wire, Black Connect to Ground
2-Wire Shielded Cable
Run Cable through Grommet in Firewall
Speed Sensor Extension Cable 328923-10X (10 Ft, Supplied w/E.O.C. Option) 328923-5X (5 Ft, Optional Cable)
(4.9")
(1.8")
Electronic Overspeed Controller - 329650X
(1.0")
379625 Grommet
Slice Grommet Insert in Hole in Firewall
Drill 1" Hole in Firewall
16 AWG Wire, Blue
16 AWG Wire, Green
Saddle Splice Connector Supplied by Installer
Run Wires through Grommet in Firewall
Wire “A” 16 AWG Wire Supplied by Installer
379243 Speed Sensor
28-P-171 O-Ring
Blue
1
379504 Valve Connector and Wire Assembly
Red
1
379502 Pressure Switch 120-140 In-Lb
Black
Electrical Ground of Cab or Frame
Accepts #10 Screw
Electronic Over Speed Control (E.O.C.) Installation
Sketch for 890 Series (Allison) (SK-475)
Owner’s Manual
Electronic Overspeed Control
NOTE: Pre-2005 Connect to J1-6 (TCM) or Wire #106 2005 and Later - Connect 43 (TCM) or Wire #143