Cub Cadet Z-Wing User Manual
Professional Shop Manual
Commercial Z-Wing
NOTE: These materials are for use by trained technicians who are experienced in the service and repair of outdoor power
equipment of the kind described in this publication, and are not intended for use by untrained or inexperienced individuals.
These materials are intended to provide supplemental information to assist the trained technician. Untrained or inexperienced individuals should seek the assistance of an experienced and trained professional. Read, understand, and follow all
instructions and use common sense when working on power equipment. This includes the contents of the product’s Operators Manual, supplied with the equipment. No liability can be accepted for any inaccuracies or omission in this publication,
although care has been taken to make it as complete and accurate as possible at the time of publication. However, due to
the variety of outdoor power equipment and continuing product changes that occur over time, updates will be made to these
instructions from time to time. Therefore, it may be necessary to obtain the latest materials before servicing or repairing a
product. The company reserves the right to make changes at any time to this publication without prior notice and without
incurring an obligation to make such changes to previously published versions. Instructions, photographs and illustrations
used in this publication are for reference use only and may not depict actual model and component parts.
© Copyright 2006 MTD Products Inc. All Rights Reserved
MTD Products Inc. - Product Training and Education Department
FORM NUMBER - 769-02102
1/2006
TABLE OF CONTENTS
Introduction ........................................................................................................................................... 1
Spindles and Blades ............................................................................................................................. 1
PTO Belt ................................................................................................................................................ 3
Deck Belt ............................................................................................................................................... 4
Spindle Service ..................................................................................................................................... 5
Deck Belt and PTO Belt Tensioner ........................................................................................................ 7
Cutting Deck Removal: Early 2005 Production ..................................................................................... 8
Cutting Deck Removal: Commencing with late 2005 Production ........................................................ 11
Deck Leveling: Early 2005 Production ................................................................................................ 13
Deck Wing and Hinge Lock .................................................................................................................16
Hinge Lock: Late 2005 production ......................................................................................................20
Deck Wing Lift Mechanism:Early 2005 Production ............................................................................. 24
Deck Wing Lift Cable Adjustment ........................................................................................................ 29
Deck Lift Mechanism ........................................................................................................................... 30
Lap Bars .............................................................................................................................................. 34
Checking Neutral Adjustment .............................................................................................................35
Linkage Neutral Adjustment ................................................................................................................36
Hydro Neutral Adjustment ................................................................................................................... 37
Tracking Adjustment ........................................................................................................................... 38
Steering Pivot Shafts and Bushings .................................................................................................... 40
Brake Linkage Adjustment ..................................................................................................................41
Brake Pivot Shaft Removal .................................................................................................................46
Hydraulic Drive System: General Operation ....................................................................................... 48
Hydraulic Drive System: Diagnosis ..................................................................................................... 50
Hydraulic Drive System: Pump Removal ............................................................................................54
Hydraulic Drive System: Wheel Motor Removal ................................................................................. 58
Front Axle and Caster Wheels ............................................................................................................ 61
Electrical: Components ....................................................................................................................... 66
Electrical: Starter Circuit ......................................................................................................................73
Electrical: Engine Stop Circuit .............................................................................................................74
Electrical: Engine-Stopping Safety Circuits .........................................................................................75
Electrical: PTO Circuit .........................................................................................................................76
Electrical: Deck Wing Lift .................................................................................................................... 77
Electrical: Charging Circuit .................................................................................................................. 78
Charging System Diagnosis ................................................................................................................ 78
Resistance ..........................................................................................................................................80
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2
1. INTRODUCTION
Cub Cadet Commercial Z-Wing
Cub Cadet Commercial Z-Wing
1.1. Purpose: Heavy-duty mowing in a compact
package.
• Until now, commercial cutters needing a
machine that would fit through a 36” gate had to
settle for a commercial walk-behind mower or a
homeowner-grade zero-turn.
• The Z-Wing’s unique folding deck gives it the
ability to pass through a 36” gate or opening, yet
provide a 48” cutting swath, increasing productivity.
• When folded, the deck wings of the Z-Wing takeup a smaller foot-print in a trailer or garage. This
enables the user to make more efficient use of
their trailer and garage space, and reduces the
chance of damage to other equipment during
loading or storage.
NOTE: When the deck of our standard TANK
line encounters other objects, it is seldom the
deck that gets damaged.
1.2. Means: The deck wings are lifted by an electric
actuator pulling on cables.
1.3. Safety: Safety switches that sense the position
of the deck wings prevent the PTO from being
engaged while the wings are up.
1.4. Drive System: Hydro-gear pumps drive White
Hydraulic wheel motors. These motors are new
to Cub cadet, and feature a unique roller stator
design.
See Figure 1.1.
Figure 1.1
NOTE: The information in this manual is derived
from prototype equipment. Although it is accu
rate at the time of writing, it is subject to change
without notice.
2. SPINDLES AND BLADES
2.1. Flail blades have been in use on “bat-wing”
mowers in a variety of applications for many
years. The unique thing about their use on the
Z-Wing mower is that they enable just the outer
portion of the deck (wing) to be raised, and the
blades fold back to clear obstacles while the
wings are raised.
Deck wing
(raised)
Blades
2.2. Things to know about flail blades:
• The individual blade elements can be removed
from each of the three blade assemblies.
• If one element on a blade assembly is worn or
damaged beyond a point that can be corrected
with a light sharpening, replace both elements to
maintain balance.
• Blade assemblies can be balanced, but not with
the ease nor the accuracy of single-piece
blades.
• Replace any suspect blade hardware before
operating the mower.
• The operator should cease operation immediately if any unusual deck vibration or noises
occur.
See Figure 2.1.
Figure 2.1
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Cub Cadet Commercial Z-Wing
2.3. Precautions:
• Disable the engine while working on the cutting
deck: Disconnect the sparkplug leads, disconnect the negative battery cable, and remove the
key from the key switch.
• Allow the engine to cool thoroughly before working near the exhaust system.
• Protect hands while working on sharp objects
like blades using gloves or rags.
2.4. With the wings raised the outer blades are easily
accessible for service. The center blade is as
accessible as it would be on a conventional
deck. Lift and safely support the mower to reach
the center blade.
See Figure 2.4.
2.6. When performing any blade or spindle service,
inspect the spindles, pulleys, and belts for wear
or damage.
2.7. Inspect the hardware that secures the blades to
the blade mount assemblies.
• Replace the locking nut if the locking feature has
degraded.
• If the bolt is replaced, use only a grade-8
replacement from a reputable source (Cub
Cadet).
• Replace the bushing if it shows signs of wear or
damage.
2.8. On installation, apply a small amount of thread
locking compound such as Loctite 262 (red) to
the threads, and tighten the nuts to a torque of
35-40 ft-lbs (47.5-54 Nm).
2.9. If the blade assembly is to be removed for sharpening and balancing, lower the deck to the lowest cutting position.
2.10. Remove the belt covers using a 9/16” wrench.
2.11. Hold the top of the spindle bolt using a 1 1/8”
wrench and turn the nut off the bottom using a
1 1/8” wrench.
Blade assembly in-place
Figure 2.4
2.5. The blades can be removed from the blade
mount assembly using a pair of 9/16” wrenches.
See Figure 2.5.
Blade spacer
and upper mounting plate
Bushing
Steel shield
Grade-8 bolt
Blade
2.12. Slide the blade assembly off the spindle bolt.
See Figure 2.12.
Steel shield
Figure 2.12
NOTE: The steel shield is part of the seal, not
the blade assembly. Do not remove it unless the
spindle requires service.
Self-locking nut
Figure 2.5
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Cub Cadet Commercial Z-Wing
2.13. The blade assemblies may be sharpened and
balanced similar to conventional blades, but a
straight-edge should be used to confirm that the
blades are straight out. If the blades are partially
folded during balance checking, the results will
be thrown-off.
2.14. On installation, apply thread locking compound
such as Loctite 262 (red) to the threads, and
tighten the nut to a torque of 100-120 ft-lbs (114136 Nm).
2.15. Install the belt covers and reconnect the battery.
2.16. Test the operation of the mower and its safety
features before returning it to service.
3. PTO BELT
3.1. Precautions:
• Disable the engine while working on the cutting
deck: Disconnect the sparkplug leads, disconnect the negative battery cable, and/or remove
the key from the key switch.
• Allow the engine to cool thoroughly before working near the exhaust system.
• Protect hands while working on sharp objects
like blades using gloves or rags.
• Apply the parking brake while working on the
mower.
3.2. Lower the deck wings.
3.3. Raise the cutting deck to the highest position.
This moves the deck as far back as possible,
reducing the amount of force on the PTO belt
tensioner.
See Figure 3.3.
3.4. Remove the belt covers that protect the blade
spindles using a 9/16” wrench.
3.5. Working from the left side of the mower, relieve
tension from the belt tensioner pulley, and roll
the belt off of the pulley, allowing the tensioner
pulley to slip beneath the belt.
PTO belt
PTO belt tensioner pulley
Figure 3.5
NOTE: belt routing and spring location
3.6. With the tension relieved, connect a 1 1/8”
wrench to the bolt at the top of the stack pulley.
Pass the wrench beneath the belt to reach the
bolt.
See Figure 3.6.
PTO Belt
See Figure 3.5.
1 1/8” wrench
Deck moves back
as deck moves up
Loosening belt slightly
Figure 3.3
Stack pulley
Figure 3.6
3.7. Draw the wrench forward to force the belt over
the top of the pulley.
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Cub Cadet Commercial Z-Wing
3.8. A second 1 1/8” wrench may be applied to the
top of the nearest blade spindle if more rotation
is needed.
Stack pulley
Second wrench on
near pulley
3.9. Lower the deck slightly to provide belt clearance
between the stack pulley and the wing lift motor,
and remove the belt from the mower.
See Figure 3.8.
Figure 3.8
4. DECK BELT
4.1. Remove the PTO belt as described in the PTO
Belt section of this manual, including all precau
tions.
4.2. Remove both deck belt covers using a 9/16”
wrench.
4.3. Working from the right of the mower, use a 1/2”
breaker bar to move the deck belt tensioner pul
ley arm, relieving tension from the deck belt.
See Figure 4.3.
Deck belt tensioner pulley
Deck belt
-
-
3.10. If the old belt exhibits any damage beyond normal wear, identify and correct the cause of the
damage before returning the mower to service.
3.11. Inspect the condition of the deck belt, and
replace it if it is suspect.
3.12. Position the new belt on the PTO clutch and
stack pulley.
3.13. Pull the tensioner pulley arm out to the left, and
slip the belt over the pulley.
3.14. Test the operation of the mower deck before
returning the mower to service.
Figure 4.3
NOTE: belt routing and spring location
4.4. Roll the belt off of the tensioner or s p i n d l e p u l l e y .
See Figure 4.4.
1/2” Breaker bar
Figure 4.4
4.5. If the old belt exhibits any damage beyond normal wear, identify and correct the cause of the
damage before returning the mower to service.
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Cub Cadet Commercial Z-Wing
4.6. Check the blade spindles for looseness while the
belt is off.
4.7. Reverse the removal process to install a new
belt or belts.
4.8. Test the operation of the mower and its safety
features before returning the mower to service.
5. SPINDLE SERVICE
5.1. Inspect all of the spindles for wear or damage
when performing regular deck belt and blade
maintenance. The recommended lubrication
interval for the deck spindles is 25 hrs., using
No.2 Multipurpose lithium base grease.
5.2. If repair or removal is required, remove the deck
belt as described in the Deck Belt section of this
manual.
5.5. Withdraw the spindle bolt and washers, and
remove the pulley.
Thick hub boss
faces up on all
spindle pulleys
Figure 5.5
5.6. The center spindle has two pulleys, with a
spacer between them, but the procedure is oth
erwise similar to the outer two spindles.
See Figure 5.6.
Deck belt sheave PTO belt sheave
Steel shield
(top)
See Figure 5.5.
Heavy washer
Flat washer
-
5.3. Hold the top of the spindle bolt using a 1 1/8”
wrench and turn the nut off the bottom using a
1 1/8” wrench.
5.4. Slide the blade assembly off the spindle bolt.
See Figure 5.4.
Spindle bolt
Blade assembly
Figure 5.4
Figure 5.6
5.7. Once the pulley is removed, the spindle may be
unbolted from the deck using a pair of 9/16”
wrenches, or it may be repaired in place.
NOTE: If a warrantable repair is being made to
the spindle, replace the spindle as a complete
unit. Outside of warranty, the dealer may repair
or replace the spindle at their own discretion.
Spindle service parts may not be available dur
ing the first year of production.
-
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Cub Cadet Commercial Z-Wing
5.8. The steel shields are identical top and bottom,
and are easily removable. They do have barbed
lips that may damage the seal when removed.
they should not be removed unless the seals are
to be replaced.
Seal
Lip
Sealing surface
Steel shield
5.9. With the steel shields removed, the seals and
bearings also come out easily.
See Figure 5.8.
Figure 5.8
See Figure 5.9.
5.10. If the tapered roller bearings need to be
replaced, the races need to be driven-out and
replaced as well.
Race (upper spindle bearing)
Spindle housing
5.11. Assembly notes:
• Clean and inspect the bearings for signs of damage. Replace bearings and races if necessary.
• Pack the bearings with fresh No.2 multi-purpose
lithium base grease and install them in the spindle housings using new seals.
See Figure 5.10.
Figure 5.10
Tapere d
roller bearing
Seal
• Replace any suspect hardware.
• On installation of the spindle nuts, apply thread
locking compound such as Loctite 262 (red) to
the threads, and tighten the nut to a torque of
100-120 ft-lbs (114-136 Nm).
• Apply a small amount of thread locking compound such as Loctite 242 (blue), or replace the
nuts if the locking feature of the nuts are in question. Tighten the spindle mounting bolts (nuts) to
a torque of 20-25 ft-lbs (27-34 Nm).
Figure 5.9
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Cub Cadet Commercial Z-Wing
6. DECK BELT AND PTO BELT TENSIONER
6.1. The deck belt tensioner idler arm can be
removed using a 1” wrench on the bolt head
above the deck and an 11/16” wrench to remove
the nut, lock washer, and flat washer from
beneath the deck.
Deck belt
tensioner arm
Figure 6.1
6.2. The bolt is rifle-drilled to provide for grease
access to the bushing in the idler arm. The bush
ings are replaceable. See Figure 6.2.
See Figure 6.1.
Torsion spring
Heavy flat washer
Shoulder bolt (drilled)
6.5. The pulley is mounted to the idler arm using a
carriage bolt. It can be easily removed using a 9/
16” wrench.
6.6. Installation notes:
• Apply a small amount of thread locking compound such as Loctite 262 (red) to the torsion
spring retaining nut, or replace the nut if the locking feature of the nut is in question. Snug the nut
against the spring.
• Apply a small amount of thread locking compound such as Loctite 242 (blue), or replace the
nuts if the locking feature of the nuts are in question. Tighten the pulley mounting nut to a torque
of 20-25 ft-lbs (27-34 Nm).
• Apply a small amount of thread locking compound such as Loctite 242 (blue), or replace the
nut if the locking feature of the nut is in question.
Tighten the idler arm bolt to a torque of 30-35 ftlbs (41-48 Nm).
• Lubricate the idler arm bushings with #2 multipurpose lithium base grease.
6.7. The PTO belt tensioner is a simple idler arm with
an extension spring between the arm and the
-
deck weldment.
6.8. The spring may be detached without removing
the arm using a length of starter rope or a spring
removal tool.
See Figure 6.8.
Bushing
Hole for breaker bar
Hole for torsion spring
Figure 6.2
6.3. A heavy flat washer between the shoulder of the
bolt and the deck weldment distributes the
mounting load.
6.4. The torsion spring is mounted to a carriage bolt
using a nut and jam nut that can be easily
removed using a 9/16” wrench.
Label
“48”
Figure 6.8
6.9. The PTO idler arm can be removed from the
deck using two 9/16” wrenches.
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Cub Cadet Commercial Z-Wing
6.10. There are three mounting holes for the pulley on
the idler arm, use the one nearest the pivot point
as indicated by the “48” mark on the label.
See Figure 6.10.
Mounting holes
Figure 6.10
6.11. The bushings in the PTO belt tensioner idler arm
are replaceable.
7. CUTTING DECK REMOVAL: EARLY 2005 PRODUCTION
NOTE: Decks having U-shaped front lift rods
were used on all Z-Wings produced after Nov. 1,
2005 (S/N: 0K015Z00001). These decks are ret
rofitted to earlier production. Earlier decks are
easily identified by V-shaped front lift rods that
connect to the deck at a single point.
7.1. Remove the PTO belt as described in the PTO
Belt section of this manual, including all precau
tions.
7.2. Trap the deck lift in the lowest position using the
clevis pin so that the cutting deck rests on the
ground and the lift handle does not imitate a cat
apult when the weight of the deck is removed
from the lift assist springs.
Lift handle
See Figure 7.2.
-
-
-
6.12. Assembly notes:
• Apply a small amount of threadlocking compound such as Loctite 242 (blue), or replace the
nuts if the locking feature of the nuts are in question. Tighten the pulley mounting nut to a torque
of 20-25 ft.-lbs (27-34 Nm).
• Apply a small amount of threadlocking compound such as Loctite 242 (blue), or replace the
nut if the locking feature of the nut is in question.
Tighten the pulley mounting nut to a torque of
20-25 ft.-lbs (27-34 Nm).
• Lubricate the idler arm bushings with No. 2 multipurpose lithium base grease.
Clevis pin
Figure 7.2
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Cub Cadet Commercial Z-Wing
7.3. Remove the wing lift shield using a 9/16”
wrench.
Wing lift
shield
7.4. Mowers produced after mid-season 2005 (2005/
2) are equipped with a lateral brace between the
frame and the mowing deck, similar to a panhard
rod in the rear suspension of a car or truck. Dis
connect or remove the lateral brace as required
by the task at-hand using a 5/8” wrench and an
11/16” wrench.
Frame
mounting point
See Figure 7.3.
Figure 7.3
See Figure 7.4.
7.5. Block all four hinge locks into the unlatched position using extra wrenches. See Figure 7.5.
Hinge lock
Figure 7.5
NOTE: Wrenches are handy to insert, easy to
spot, and unlikely to be forgotten.
-
7.6. Slide the rubber boot back from the cable end,
and remove the end jam nut on the cable using a
pair of 1/2” wrenches.
7.7. With the wings unlatched, they can be lifted
manually. Lift the wings manually to put slack in
the lift cable so that the end of the cable can be
slipped-out of the hole and slot in the bracket.
See Figure 7.7.
Figure 7.4
lateral link
Deck
mounting point
Lift wing to provide
slack in the cable
Figure 7.7
7.8. Once the cable housing is released from the
bracket on the deck, the barrel on the end of the
cable core can be maneuvered out of the hole
and slot in the wing lift bracket.
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Cub Cadet Commercial Z-Wing
7.9. Disconnect the wires from the deck wing position
switches on each rear deck wing bracket.
See Figure 7.9.
Rear deck wing hinge
Deck Wing position switch
Figure 7.9
7.10. Cut any cable ties holding wing lift cables and
wing position switch wires to the cutting deck.
7.11. Remove the hairpin clip and clevis pin that
secure the front of the cutting deck to the spheri
cal rod end on the front lift arm assembly.
See Figure 7.11.
Front lift arm Ass’y.
• Hold the lift handle down
• Carefully remove the hairpin clip and clevis pin
that kept the lift handle in the lowest position.
• Carefully allow the lift handle to rise to the transport position under the force of the lift assist
springs.
• Turn the front caster wheels sideways for deck
clearance.
7.15. Remove the cutting deck from the mower.
7.16. Installation is done by reversing the removal process. Installation notes:
• Confirm the correct operation of all safety features, including the wing-latch mechanisms
before returning the mower to service.
• Confirm that the cables ar correctly adjusted
after deck installation.
• Confirm that the cables and wires are routed and
fastened in such a way that they will not be damaged during operation of the mower.
• If the locking feature of the removed lateral
-
brace mounting nut has worn, replace the nut or
apply a small amount of thread locking compound such as Loctite 242 (blue).
• Tighten the mounting bolt to a torque of 40 ft-lbs.
(54.25 Nm).
Spherical rod end
Figure 7.11
7.12. Remove the hairpin clips that secure the cutting
deck to the lift arms.
NOTE: 914-0147 hairpin clips are an acceptable
replacement for the originals.
7.13. Move the deck to the right to disengage the pins
that connect the deck to the lift arms.
7.14. If working on the ground:
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Cub Cadet Commercial Z-Wing
8. CUTTING DECK REMOVAL: COMMENCING WITH LATE 2005 PRODUCTION
NOTE: Decks having U-shaped front lift rods
were used on all Z-Wings produced after Nov. 1,
2005 (S/N: 0K015Z00001). These decks are ret
rofittable to earlier production. Earlier decks are
easily identified by V-shaped front lift rods that
connect to the deck at a single point.
8.1. Remove the PTO belt as described in the PTO
Belt section of this manual, including all precau
tions.
8.2. Trap the deck lift in the lowest position using the
clevis pin so that the cutting deck rests on the
ground or a purpose-built cart, and the lift handle
does not imitate a catapult when the weight of
the deck is removed from the lift assist springs.
See Figure 8.2.
Lift handle
8.3. Remove the wing lift shield using a 9/16”
wrench.
-
-
Wing lift
shield
8.4. Block all four hinge locks into the unlatched position using extra wrenches. See Figure 8.4.
See Figure 8.3.
Figure 8.3
Figure 8.2
Clevis pin
Hinge lock
Figure 8.4
NOTE: Wrenches are handy to insert, easy to
spot, and unlikely to be forgotten.
8.5. Slide the rubber boot back from the cable end,
and remove the end jam nut on the cable using a
pair of 1/2” wrenches.
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Cub Cadet Commercial Z-Wing
8.6. With the wings unlatched, they can be lifted
manually. Lift the wings manually to put slack in
the lift cable so that the end of the cable can be
slipped-out of the hole and slot in the bracket.
See Figure 8.6.
Lift wing to provide
slack in the cable
Figure 8.6
8.7. Once the cable housing is released from the
bracket on the deck, the barrel on the end of the
cable core can be maneuvered out of the hole
and slot in the wing lift bracket.
8.10. Release the extension spring that maintains tension on the PTO belt tension arm and pulley.
Use a length of starter rope or a spring removal
tool.
Extension
spring
Bolt
(anchor point
for spring)
Figure 8.10
8.11. Remove the nuts and socket-head shoulder
bolts that connect the deck to the lift arms using
a 5/16” Allen wrench and a 3/4” wrench.
See Figure 8.11.
See Figure 8.10.
PTO belt tensioner pulley
8.8. Disconnect the wires from the deck wing position
switches on each rear deck wing bracket.
See Figure 8.8.
Rear deck wing hinge
Deck Wing position switch
Figure 8.8
8.9. Cut any cable ties holding wing lift cables and
wing position switch wires to the cutting deck.
Figure 8.11
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Cub Cadet Commercial Z-Wing
8.12. Move the deck forward to disengage the front
deck lift bar from the hooks on the front of the
deck.
See Figure 8.12.
Figure 8.12
8.13. Raise the mower and remove the deck from
beneath it.
8.14. If working on the ground:
8.16. Installation is done by reversing the removal process. Installation notes:
• Confirm the correct operation of all safety features, including the wing-latch mechanisms
before returning the mower to service.
• Confirm that the cables ar correctly adjusted
after deck installation.
• Confirm that the cables and wires are routed and
fastened in such a way that they will not be damaged during operation of the mower.
• If the locking feature of the removed laterally
brace mounting nut has worn, replace the nut or
apply a small amount of thread locking compound such as Loctite 242 (blue).
• Tighten the mounting bolt to a torque of 40 ft-lbs.
(54.25 Nm).
• Hold the lift handle down
• Carefully remove the hairpin clip and clevis pin
that kept the lift handle in the lowest position.
• Carefully allow the lift handle to rise to the transport position under the force of the lift assist
springs.
• Turn the front caster wheels sideways for deck
clearance.
• Remove the cutting deck from the mower.
8.15. If the mower is to be moved while the cutting
deck is off of it:
• Secure the wires and cables that are associated
with the wing lift mechanism.
• Secure or remove the front lift bar assembly.
9. DECK LEVELING: EARLY 2005 PRODUCTION
NOTE: Decks having U-shaped front lift rods
were used on all Z-Wings produced after Nov. 1,
2005 (S/N: 0K015Z00001). These decks are ret
rofittable to earlier production. Earlier decks are
easily identified by V-shaped front lift rods that
connect to the deck at a single point.
9.1. Preparation:
• Park the mower on a flat, level, paved surface,
set the parking brake and lower the deck wings.
• Safety: disable the engine by removing the key
from the key switch and disconnecting the high
tension leads from the spark plugs.
• Setting the mower deck height to 4” provides the
best combination of access above and below the
deck.
-
• Check the rear tire pressure: they should be
between 10-12 PSI (.69-.84 Bar). Be aware that
adjustments to rear tire pressure will also cause
a change in tracking.
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Cub Cadet Commercial Z-Wing
9.2. Side-to-side measurement: See Figure 9.2.
Figure 9.2 Figure 9.4
• Orient the outer pair of blades fore-and-aft.
• Check the vertical play on each element of the
blade assemblies to be measured. There will be
some up and down travel at the blade tips, generally between 1/8” and 1/4” (3.175mm and
6.35mm). If the amount of play significantly
exceeds this range, or is not consistent between
blade elements, identify the cause and correct it.
• Aerodynamic down-force overcomes the centrifugal force that keeps the blades perpendicular to
the spindle axis at mowing speeds: the blades
operate at the lower end of the available play.
• Measure the distance to the ground from the left
and right rear blade tips. It should be equal.
9.3. If the distance from the left and right rear blade
tips to the ground is equal, proceed to fore-andaft pitch measurement. If the distance is not
equal, level the deck as described under the
Side-to-side leveling sub-heading.
9.4. Side-to-side leveling: See Figure 9.4.
Adjustable link:
left-hand side
• The right side deck lift link is fixed in length,
while the left side link is adjustable.
• Loosen the jam nut that locks the adjustment on
the left lift link using a 3/4” wrench.
• Move the adjustment nut up or down as necessary to level the deck, using a 3/4” wrench.
• Tighten the jam nut, and double-check the level.
Readjust if necessary.
9.5. Fore-and-aft pitch measurement:
• Measure the distance to the ground from the
front and rear tips of the right side blade.
• The front blade tip should be between 1/8” and
1/4” (3.175mm and 6.35mm) closer to the
ground than the rear blade tip.
• This measurement should be the same for the
left side blade too. If it is not, identify and correct
the cause.
• If adjustment is necessary, proceed as
described in the deck pitch adjustment subheading.
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Cub Cadet Commercial Z-Wing
9.6. Deck pitch adjustment: Mowers produced
before November 2005.
Spherical rod end
Figure 9.6
• Loosen the jam nut that locks against the spherical rod-end connecting the front of the cutting
deck to the front lift arm assembly using a 15/16”
wrench.
See Figure 9.6.
Adjustment
bolt
Jam nut
• Loosen the jam nuts that lock against the front
rod lift tube using a 15/16” wrench.
• Tighten or loosen the pitch adjustment nuts as
required to achieve a nose-down blade attitude
(lower at the front of the blade than at the back)
of 1/8” to 1/4” (3.175mm and 6.35mm) using a
15/16” wrench.
• Tension on the adjusting nuts should be even.
If it is not, the looser side will amplify deck vibrations.
• Secure the adjustment by tightening the jam nut.
• The effect of adjustment is greater at lower cutting heights because the front deck lift arm is
closer to horizontal at higher cutting levels. It is
important to make this adjustment at the level
used most frequently by the operator.
9.9. Run and test the mower, inspecting cut quality,
before returning the mower to service.
9.10. Lateral brace adjustment: See Figure 9.10.
• Tighten or loosen the pitch adjustment bolt as
required to achieve a nose-down blade attitude
(lower at the front of the blade than at the back)
of 1/8” to 1/4” (3.175mm and 6.35mm) using a
15/16” wrench.
• Secure the adjustment by tightening the jam nut.
9.7. Run and test the mower, inspecting cut quality,
before returning the mower to service.
9.8. Deck pitch adjustment: Mowers produced after
November 2005, or retrofitted with a new deck
after November 2005:
U-shaped deck lift
bar has two adjustment points
See Figure 9.8.
Lateral
brace
Figure 9.10
• Mowers produced after mid-season 2005, but
before November of 2005 are equipped with a
lateral brace between the frame and the mowing
deck, similar to a panhard rod in the rear suspension of a car or truck.
• The lateral brace length should be adjusted so
that at the middle of the deck’s height travel it
exerts no force on the deck: if one of the mounting bolts is removed it will slip back-in without
force.
Figure 9.8
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Cub Cadet Commercial Z-Wing
9.11. To adjust the lateral brace: See Figure 9.11.
Mounting nuts / bolts
Spherical rod ends
Center section
Jam nuts
Safety washers
Figure 9.11
NOTE: Safety washers prevent the lateral brace
from becoming disconnected if one of the spher
ical rod-ends fails.
• Loosen the jam nuts at each spherical rod-end
using an 11/16” wrench before disconnecting the
brace.
• Disconnect one end of the lateral brace, and
lengthen or shorten the brace as needed by
rotating the tubular center section.
• Both spherical rod ends are connected to the
center section with right-hand threads, so one
end must be disconnected for adjustment.
• Reconnect the end, and tighten the jam nuts.
• If the locking feature of the removed mounting
nut has worn, replace the nut or apply a small
amount of thread locking compound such as
Loctite 242 (blue).
10. DECK WING AND HINGE LOCK
NOTE: Mowers produced after mid-season 2005
use a different hinge lock mechanism than the
early 2005 production mowers. While the two
hinge locks are similar in operation, the actual
components differ substantially. The revised
hinge locks will be described in a sub-section
that follows the early hinge lock section.
10.1. How it works: See Figure 10.1.
Wing lift
cables
-
Linear
actuator
Figure 10.1
• A linear actuator mounted under the floor pulls
on a brace of cables. Each pair of two cables
unlatch and lift one deck wing.
10.2. Each deck wing has two hinge locks and lift
cable brackets, protected by lift wing shields.
See Figure 10.2.
Lift cable brackets
Hinge locks
Pivot
bar
• Tighten the mounting bolt to a torque of 40 ft.lbs. (54.25 Nm).
Figure 10.2
16
NOTE: All four sets of hinge locks and brackets
are identical: the parts are interchangeable leftto-right and front-to-rear.
10.3. When the wing lift is activated, all four cables,
hinge locks, and lift mechanisms should work in
unison:
See Figure 10.3.
Cable bracket
Hinge lock
Cub Cadet Commercial Z-Wing
10.4. The lift mechanism can be reached by removing
the lift wing shield using a 9/16” wrench.
See Figure 10.4.
Socket-head
cap screw
Wing position switch Compression spring
Figure 10.3
• The force applied through the cable rotates the
cable bracket inward.
• The socket head cap screw attached to the
cable bracket moves upward, releasing the
plunger on the safety switch and rotating the
hinge lock clear of the corner of the deck hinge
• The force of a compression spring keeps the
hinge lock applied when the cable is slack.
• When the spring is compressed and the hinge
lock is clear of the hinge, the cable will begin to
lift the deck wing.
Lift wing shield
Figure 10.4
10.5. If the cable bracket is to be removed, it can be
unbolted with the cable attached using two 9/16”
wrenches. Once loose, the cable can be discon
nected from the bracket. See Figure 10.5.
Cable bracket
(unbolted)
-
• A clutch within the actuator prevents over-travel
when the wings reach the fully raised position.
• The safety switches prevent the operation of the
PTO with the deck wings raised.
• Proper adjustment is very important: refer to the
DECK WING CABLE ADJUSTMENT section of
this manual for the correct procedure.
• Proper hinge alignment is very important. If a
hinge becomes bent or damaged, it must be
repaired before the mower is used.
Figure 10.5
NOTE: The bolt and bushing that hold the
bracket are also the pivot point for the deck
wing.
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Cub Cadet Commercial Z-Wing
10.6. Orientation: on all four cable brackets, one side
of the bushing shoulder is thicker than the other.
The socket head cap screw always goes on the
side with the thicker shoulder.
Cable bracket Socket head cap screw
Figure 10.6
10.7. Assembly notes:
• Reverse the disassembly process to install the
cable bracket.
• Lubricate the pivot point with anti-seize compound.
• Apply a small amount of thread locking compound such as Loctite 242 (blue), or replace the
nut if the locking feature of the nut is in question.
Tighten the nut to a torque of 20-25 ft-lbs (27-34
Nm).
• Confirm correct operation and adjustment of the
wing lift mechanism and all associated safety
features before returning the mower to service.
10.8. To remove the hinge lock, the compression
spring that holds the hinge lock against the
bracket on the deck wing must first be discon
nected.
See Figure 10.6.
-
10.10.Once the spring is released, remove the nut
from the carriage bolt that secures the hinge lock
and its shouldered bushing to the bracket on the
deck wing.
Carriage bolt (captive)
Shouldered bushing
Hinge
lock
Figure 10.10
10.11. The hinge lock assembly can then be removed
from the deck, except for the carriage bolt. The
cable bracket must be removed to release the
carriage bolt.
Carriage bolt
Hinge lock
Shouldered
bushing
Self locking nut
Compression spring Small flat washer
Bolt Self locking nut
Large flat washer
See Figure 10.11.
See Figure 10.10.
10.9. Remove the nut that secures bolt, flat washer,
and the compression spring using a pair of 9/16”
wrenches. The spring will still be captive, but it
can be removed when the hinge lock is unbolted
from the bracket on the deck wing.
Figure 10.11
18
Cub Cadet Commercial Z-Wing
Hi
10.12.Assembly notes: See Figure 10.12.
1”
Figure 10.12
• Reverse the disassembly process to install the
hinge lock.
• Lubricate the pivot point (shoulder bushing) with
anti-seize compound.
• Tighten the nut on the carriage bolt to a torque of
20-25 ft-lbs (27-34 Nm). Apply a small amount of
thread locking compound such as Loctite 242
(blue), or replace the nut if the locking feature of
the nut is in question.
• Tighten the nut that holds the compression
spring until the distance between the head of the
bolt and the near edge of the bracket on the
deck wing is 1” (2.54 cm), with the hinge lock
pressed firmly against the bracket. Apply a small
amount of thread locking compound such as
Loctite 242 (blue), or replace the nut if the locking feature of the nut is in question.
• Confirm correct operation and adjustment of the
wing lift mechanism and all associated safety
features before returning the mower to service.
10.14.The switch contacts are normally open (N.O.),
meaning that the internal contacts are broken
when the plunger is extended.
Figure 10.14
• If the contacts fail to close when the plunger is
depressed, the PTO will not work.
• If the contacts fail to open when the plunger is
extended, an unsafe condition will exist.
• The switches should be tested whenever mower
deck maintenance is being performed.
10.15.The switches are mounted to a slotted bracket
using carriage bolts: they are adjustable.
10.16.The switches are correctly adjusted when the
contacts break just as the corner of the hinge
lock clears the corner of the hinge.
See Figure 10.16.
nge lock
just clears
corner of
hinge
See Figure 10.14.
Plunger down
Contacts closed
10.13.There is a safety switch mounted to the rear
hinge on each side of the deck.
• The switch is actuated by the socket head cap
screw that releases the hinge lock.
• If the switch contacts of both switches do not
close, the PTO will be disabled.
• Disabled PTO may be caused by a disconnected
switch, damaged wires, damaged switch, or a
misadjusted switch.
Plunger up
Contacts open
Figure 10.16
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Cub Cadet Commercial Z-Wing
11. HINGE LOCK: LATE 2005 PRODUCTION
11.1. When the wing lift is activated, all four cables,
hinge locks, and lift mechanisms should work in
unison:
Cable
J-nut
Torsion spring
Shouldered
cap screw
• The force applied through the cable rotates the
cable bracket inward.
See Figure 11.1.
Figure 11.1
Cable bracket
Hinge lock
NOTE:
new profile
Compression
spring
• There is a torsion spring connecting the hinge to
the cable bracket, giving the cable bracket more
positive return action.
• A J-nut has been positioned in a notch on the
hinge. The J-nut is hardened. This provides a
hard flat surface for the hinge lock to operate
against. The wear resistance of the J-nut will
provide more consistent locking action over
time, and is easily replaced.
• The compression spring that engages the hinge
lock is mounted on shouldered socket head cap
screw, eliminating the possibility of misadjustment.
11.3. The Safety switch that is mounted to each rear
hinge lock prevents the electric PTO from
engaging when the wings are not latched in the
down position.
See Figure 11.3.
• The socket head cap screw attached to the
cable bracket moves upward, releasing the
plunger on the safety switch and rotating the
hinge lock clear of the corner of the deck hinge
• The force of a compression spring keeps the
hinge lock applied when the cable is slack.
• When the spring is compressed and the hinge
lock is clear of the hinge, the cable will begin to
lift the deck wing.
• A clutch within the actuator prevents over-travel
when the wings reach the fully raised position.
• The safety switches prevent the operation of the
PTO with the deck wings raised.
• Proper adjustment is very important: refer to the
DECK WING CABLE ADJUSTMENT section of
this manual for the correct procedure.
• Proper hinge alignment is very important. If a
hinge becomes bent or damaged, it must be
repaired before the mower is used.
11.2. The revised hinge lock (2005/2) differs from the
original hinge lock (2005/1) in the following
ways:
Safety switch on
each rear hinge lock
Figure 11.3
• There is greater range of motion between the
point that the socket head cap screw releases
the plunger on the safety switch and the point
that it contacts the hinge lock.
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Cub Cadet Commercial Z-Wing
11.4. The lift mechanism can be reached by removing
the lift wing shield using a 9/16” wrench.
See Figure 11.4.
Lift wing shield
Figure 11.4
11.5. While the earlier cable brackets can simply be
unbolted with the cable attached, the torsion
spring on the revised cable brackets makes
them easier to remove if the cable is first discon
nected. See Figure 11.5.
11.6. The cable bracket can then be removed using
two 9/16” wrenches. Unbolt it and remove the
bushing.
Figure 11.6
11.7. The bolt and bushing that hold the bracket are
also the pivot point for the deck wing: If the deck
wing is to be completely removed, taking-off
-
both cable brackets will separate the deck wing
from the rest of the deck.
See Figure 11.6.
Cable
Cable bracket
Bushing
Wrench
Cable
bracket
Figure 11.5
• One hinge lock on the wing to be serviced can
be blocked open using an open-end wrench.
• The hinge lock nearest the cable bracket to be
removed can be manually unlatched.
• With both hinge locks released, the deck wing
can be lifted manually to slacken the cable.
• Slack in the cable allows the cable-end barrel to
be slipped out of the key-hole opening in the
cable bracket.
Cable
11.8. Orientation: on all four cable brackets, one side
of the bushing shoulder is thicker than the other.
See Figure 11.8.
Long arm Short arm
Key hole
opening
Shoulder that
surrounds the
bushing
Figure 11.8
• The socket head cap screw always goes on the
side with the thicker shoulder.
• The long arm of the torsion spring should be
nearer the cable bracket than the short arm.
• The long arm of the torsion spring fits under the
socket head cap screw.
Socket head
cap screw
21
Cub Cadet Commercial Z-Wing
11.9. Assembly notes: See Figure 11.9.
Figure 11.9
• Reverse the disassembly process to install the
cable bracket: hook the long arm of the torsion
spring under the machine screw on the deck
wing hinge, and position the socket head cap
screw under the hinge lock.
• Lubricate the pivot point with anti-size compound.
• Insert the bushing, and secure the assembly
with nut and bolt.
11.10. To remove the hinge lock, the compression
spring that holds the hinge lock against the
bracket on the deck wing must first be discon
nected. See Figure 11.10.
Spring
Flat
washers
Figure 11.10
11.11. Remove the nut that secures bolt, flat washer,
and the compression spring using a pair of 9/16”
wrenches.
11.12. The shoulder bolt, spring, and flat washers can
all be removed if the spring is compressed with
finger pressure.
Nut
See Figure 11.12.
-
• Apply a small amount of thread locking compound such as Loctite 242 (blue), or replace the
nut if the locking feature of the nut is in question.
Tighten the nut to a torque of 20-25 ft-lbs (27-34
Nm).
• Confirm correct operation and adjustment of the
wing lift mechanism and all associated safety
features before returning the mower to service.
Figure 11.12
22
Cub Cadet Commercial Z-Wing
11.13. The hinge lock and the bushing that it pivots on
can then be removed from the deck using a 9/
16” wrench.
Hinge lock
NOTE: The cable bracket must be removed to
release the carriage bolt.
11.14. Assembly notes:
• Reverse the disassembly process to install the
hinge lock.
• Lubricate the pivot point (shoulder bushing) with
anti-seize compound.
• Tighten the nut on the carriage bolt to a torque of
20-25 ft-lbs (27-34 Nm). Apply a small amount of
thread locking compound such as Loctite 242
(blue), or replace the nut if the locking feature of
the nut is in question.
• Tighten the nut that holds the compression
spring until the shoulder bottoms-out against the
bracket. Apply thread locking compound such as
Loctite 242 (blue), or replace the nut if the locking feature of the nut is in question. Tighten the
nut to a torque of 20-25 ft-lbs (27-34 Nm).
See Figure 11.13.
Carriage bolt
Bushing
Figure 11.13
11.16. The switch contacts are normally open (N.O.),
meaning that the internal contacts are broken
when the plunger is extended.
Contacts closed
Hinge lock latched
Plunger down
Figure 11.16
• If the contacts fail to close when the plunger is
depressed, the PTO will not work.
• If the contacts fail to open when the plunger is
extended, an unsafe condition will exist.
• The switches should be tested whenever mower
deck maintenance is being performed.
11.17. Each switch is mounted to a bracket that can be
rotated for adjustment:
• Loosen the switch bracket mounting bolt using a
pair of 9/16” wrenches.
• Rotate the switch bracket until the contacts open
and when the hinge lock is unlatched and close
when the hinge lock latches.
• Secure the bracket by tightening the bolt.
See Figure 11.16.
• Confirm correct operation and adjustment of the
wing lift mechanism and all associated safety
features before returning the mower to service.
11.15. There is a safety switch mounted to the rear
hinge on each side of the deck.
• The switch is actuated by the socket head cap
screw that releases the hinge lock.
• If the switch contacts of both switches do not
close, the PTO will be disabled.
23
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