OPERATOR’S MANUAL
FOURTH HYDRAULIC VALVE KIT
For Cub Cadet Series 3000 Tractor
INSTALLATION INSTRUCTIONS
Service Kit Part Number 759-3971
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
CUB CADET LLC P.O. BOX 361131 CLEVELAND, OHIO 44136-0099
PRINTED IN U.S.A.
IMPORTANT:
FORM NO. 770-1911
(12/01)
2
CONTENTS
Section Page
Safe Operation Practices .............................................................................................. 3
To The Owner ............................................................................................................... 3
lComponents..................................................................................................................4
IlTractorPreparation.......................................................................................................5
lllInstallation.....................................................................................................................5
WARNING
ThetractorswhichusethisFourth Hydraulic Valve are equipped withaninternalcombustionengineandshould
notbeusedonornearanyunimprovedforest-covered,brush-covered,orgrass-coveredlandunlessthe
engine’sexhaustsystemisequippedwithasparkarrestermeetingapplicablelocalorstatelaws(ifany).Ifa
sparkarresterisused,itshouldbemaintainedineffectiveworkingorderbytheoperator.
IntheStateofCalifornia,theaboveisrequiredbylaw(Section4442oftheCaliforniaPublicResourcesCode).
OtherStatesmayhavesimilarlaws.Federallawsapplytofederallands.Asparkarrestermufflerisavailableat
yournearestengineauthorizedservicecenter.
SAFEOPERATIONPRACTICES
IMPORTANT
IMPORTANT
SAFE OPERATION PRACTICES
THISSYMBOLPOINTSOUTIMPORTANTSAFETYINSTRUCTIONSWHICH,IFNOTFOLLOWED,
THISSYMBOLPOINTSOUTIMPORTANTSAFETYINSTRUCTIONSWHICH,IFNOTFOLLOWED,
COULDENDANGERTHEPERSONALSAFETYAND/ORPROPERTYOFYOURSELFAND
COULD ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF YOURSELF AND
OTHERS.READANDFOLLOWALLINSTRUCTIONSINTHISMANUALBEFOREATTEMPTING
OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING
TOOPERATEYOURUNIT.FAILURETOCOMPLYWITHTHESEINSTRUCTIONSMAYRESULT
TO OPERATE YOUR UNIT. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RES ULT
INPERSONALINJURY.WHENYOUSEETHISSYMBOL—HEEDITSWARNING.
IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL— HEED ITS WARNING.
TOTHEOWNER
ThismanualcontainsinstructionsforinstallationoftheFourth Hydraulic Valve onthe Cub Cadet Series 3000
Tractors.Carefullyreadallsectionsandstudytheillustrationsand pictures toensureproperinstallation.
All optionalhydraulic attachments can be operated onthetractor with the installation of Service Kit
Part Number 759-3971.When installed, this valve will operate the optional 3 Point Hitch Attachment.
ReadandobserveallWARNINGandCAUTIONstatements.Theyareincludedtoprovidefortheprotectionofthe
equipment installer and user, and to ensure the prolonged service life of the equipment.
NOTE
References to LEFT and RIGHT indicate the left and right sides of the tractor when facing forward in the
operator’s position. Reference to the FRONT indicates the grille end; to the REAR the drawbar end.
CALLING FOR SERVICE
If you are having difficulty assembling this product or if you have any question regarding the operation or
maintenance of this equipment, contact your dealer. If you need help locating a dealer in your area, contact the
Customer Dealer Referral Line by calling:
1-877-282-8684
3
SECTION I. COMPONENTS
Before beginning installation of the Fourth Hydraulic Valve Service Kit, remove all parts from
the container. Refer to figure 1 to confirm that all parts are present and to acquaint yourself with
parts nomenclature.
⇒⇒⇒⇒ NOTE
The parts in figure 1 are referred to throughout the manual by their alphabetic callout.
Contents of Service Kit 759-3971
Part Number Description Qty.
A 603-0963 Template Bracket 1
B 710-1894 Hex Cap Screw 1/4-20 X 7.75 GR5 4
C 721-0492 Back-up O-Ring 5
D 721-3021 O-Ring .301 ID X .070 Dia. 5
E 727-3200 Hydraulic Hose 3 point 1
F 727-3263 Hydraulic Tube (Aux. from Steering) 1
G 727-3264 Hydraulic Hose 3 point 1
H 731-0511 Trim Strip 1
I 731-3259 Lift Handle Knob 1
J 747-3485 Hydraulic Valve Handle #4 1
K 777I20933 Fourth Valve Label 1
L 777X40321 Template Label 1
M 712-0291 Hex Lock Nut ¼-20 4
Operator’s Manual 1
HI JKL MA
D
C
G
E
Figure 1
4
B
F
SECTION II. TRACTOR PREPARATION
Follow the instructions in Section II of the optional Front Hitch System Attachment Owner’s
Manual for preparing the tractor for installation.
SECTION III. INSTALLATION
These instructions describe installation of the Fourth Hydraulic Valve Service Kit after the
optional Front Hitch System Attachment and optional Hydraulic Angling Attachment OR optional
3 Point Hitch Attachment has been installed on the tractor. As the Fourth Hydraulic Valve Service
Kit is being installed along with the Hydraulic Angling Attachment OR 3 Point Hitch Attachment,
refer to the installation instructions in the Operator’s Manual that came with all the optional
attachments as you complete each of the following steps. Some instructions in one manual may
either supersede or supplement instructions in the other.
NOTE: Place a pan beneath the tractor to catch any hydraulic fluid, which may spill during
disassembly.
A)
Remove and retain the hex screw and valve clamp securing the hydraulic tube (From Steering
Pump to Auxiliary Valve) to the auxiliary valve (Center Lift Valve). See Figure 2.
B)
Remove and retain both bolts securing the steering pump port plate to the steering pump.
Pivot the top edge of the port plate backward (toward the left frame rail), bringing the plate to
horizontal. Push the port plate up and rotate the port plate counter-clockwise 90 degrees using
the main pressure line as the pivot point. Slide the port plate towards the left frame rail until
the port plate clears the hydraulic lines. Retain the steering pump port plate. Remove the
auxiliary hydraulic tube (From Steering Pump to Auxiliary Valve) and discard. Retain and
inspect O-Rings. If damaged, furnish from service parts new O-Rings as needed. See Figure 3.
From Steering Pump
Steering Pump
to Charge
Pump
Port Plate
Steering Pump From Steering
to Front of Pump to
Steering Auxiliary
Cylinder Valve
Steering Pump to
Rear of Steering
Cylinder
Steering Pump to
Charge Pump
Figure 2 Figure 3
C)
Remove and retain all hardware and valve clamps securing the hydraulic lines and tubes from
the valve assembly. Next, disconnect all hydraulic lines and tubes from the valve assembly.
Then remove and retain the hex cap screws and lock nut securing the valve assembly to the
frame. Set aside the valve assembly when removed.
5
D)
Take the template bracket (A) from the service kit. Locate the hole in the LH tractor frame,
as shown in figure 4, and align the pivot pin on the template bracket (A) with the hole in the
frame. Rotate the template bracket (A) counter-clockwise until the second pin on the
template bracket (A) contacts the frame. See Figure 5. Hold the bracket in position and use a
center punch to mark the center for the two holes. Remove bracket.
Pivot Pin
Template Bracket
Hole in LH Frame
Second
Pin
E)
Using a 9/16 inch drill bit, drill the UPPER hole in the frame. Using a 9/32 inch drill bit, drill
Figure 4 Figure 5
the LOWER hole in the frame.
F)
Take the valve assembly and note the position of the mounting brackets. Remove and discard
the four hex cap screws and four lock nuts fastening the hydraulic valves together. Retain the
valve mounting brackets from the valve assembly.
G)
Follow the installation instructions from the Operator’s Manual that came with the optional
attachments to assemble the valves. Refer to the picture in figure 6 to verify proper
assembly. If existing O-rings were damaged during disassembly, use the Back-up O-rings
(C) and O-rings (D) from the service kit. Use the four ¼ inch Hex Cap Screws (B) and four
¼ Hex Lock Nuts (M) from the service kit to assemble the four valves together along with
the mounting brackets previously removed.
NOTE: Install the fourth valve body (use valve from the optional attachment) IN FRONT of
the center lift valve with the outlet ports of the valve body facing inward. Install the front
hitch valve and angling valve with the outlet ports of the valve body facing outward.
IMPORTANT: The spool must be correctly positioned in the valve body to ensure proper
operation of the valve. All four valves must have the arrow on top of the valve spool
pointing to the rear of the tractor when installed into the chassis.
6
FRONT
Outlet Ports
REAR
Outlet Ports
Fourth Valve
for 3 PT Hitch
Center Lift
Valve (auxiliary)
Front Hitch
Valve
Angling
Valve
FIGURE 6
H)
Install the valve assembly into the frame and loosely fasten with the previous removed
hardware. Follow the installation instructions in the Owner’s Manual that came with the
Front Hitch System Attachment and Hydraulic Angling Attachment for installing the
hydraulic lines/tubes and securing the valve assembly to the frame. See Figure 7 and 8.
I)
If not already installed, install previously removed O-Rings on the ends of the new hydraulic
tube (F) (Aux. from Steering). Reassemble in reverse order using instructions in steps B and
A. NOTE: When installing the steering pump port plate, place a small amount of grease on
the O-Rings and cover the connector surface completely for reinstallation.
Center
Lift Lines
Front Hitch Angling
Hydo
Return Tube
FIGURE 7 FIGURE 8
7
J)
Discard both hydraulic
hoses for the hydraulic lift
cylinder provided with the
3 Point Hitch Attachment
and replace with the two
hydraulic hoses (E) (G)
provided in this service
kit. Place an O-Ring (D)
and backup O-Ring (C)
onto each hose ends.
Install the ends of the two
hydraulic hoses (E) (G)
into the ports of the fourth
valve located in front of
the center lift valve. See
Figure 9.
NOTE: For hose routing, refer
to the installation instruction
in the Owner’s Manual for the
3 Point Hitch Attachment.
Hydraulic Hoses 3 point
FIGURE 9
K)
Remove and retain the lift lever cover/cup holder and flap from the fender. Take the template
label (L) from the service kit and position it on the fender as described on the label. Fasten
the template label (L) to the fender and mark the hole location as instructed on the label. See
Figure 10. Carefully cut out the hole in the fender using the most convenient method
available to you (ie sabre saw, hole saw, etc.). Discard the template and remove any sharp
edges. Touch up the paint finish to prevent rusting. See Figure 11.
L)
Take the push-on trim strip (H) from the service kit and position the strip around the new
hole in the fender. Press into place as shown in figure 12 and remove any excess material as
needed.
FIGURE 10 FIGURE 11
8
Trim Excess
g
g
Material
Fourth Valve
for 3 PT Hitch
Fourth Valve Label
Front Hitch
Center Lift
An
lin
M)
Install the lift lever cover/cup holder into the fender. Affix the fourth valve label (K), as
FIGURE 13
FIGURE 14
shown in figure 14, to indicate lift/lower function of the valve handle for the 3 Point Hitch.
N)
Install the lift handle knob (I) on the hydraulic valve handle #4 (J).
O)
Refer to the installation instructions in the Operator’s Manual that came with all the optional
attachments to reassemble tractor. Some of the instructions in one manual may duplicate,
supersede or supplement instructions in the other.
P)
Install the hydraulic valve handles in the appropriate slots. See Figure 14.
Q)
Refer to the instructions in the Owner’s Manuals to check for proper operation.
9
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