Cub Cadet MMZ Rider User Manual
Service Manual
Commercial MMZ Rider
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 2005 MTD Products Inc. All Rights Reserved
MTD Products Inc - Product Training and Education Department
FORM NUMBER - 769-01760
3/2005
SECTION 1
Cub Cadet Commercial M60 Tank - 2002 and prior years
PTO Belt Removal ......................................................................................................1
Cutting Deck Removal ................................................................................................3
Cutting Deck Drive Belt Removal ...............................................................................5
Spindle Removal and Disassembly ............................................................................6
Hydrostatic Drive Belt Removal ..................................................................................7
Electric PTO Clutch Removal .....................................................................................9
Electric PTO Clutch Specifications ...........................................................................10
Hydrostatic Drive Assembly Removal ......................................................................11
Hydrostatic Pump / Transmission Removal .............................................................15
Left Transmission Disassembly and Inspection .......................................................18
Left Transmission Shimming and Assembly ........................................................22
Shimming Procedures ..............................................................................................24
Inner Housing ...........................................................................................................24
Outer Housing ..........................................................................................................24
Preparation ...............................................................................................................29
Lap Bar Adjustment ..................................................................................................29
Neutral Control Adjustment ......................................................................................29
Creep Adjustment .....................................................................................................30
Parking Brake Adjustment ........................................................................................33
Preliminary Setup .....................................................................................................35
Lift Adjustment Rods ................................................................................................35
Side to Side Adjustment ...........................................................................................35
Mower Deck Leveling ...............................................................................................35
Front to Back Adjustment .........................................................................................37
SECTION 2
Cub Cadet Commercial M60 Tank - 2003/4 Update
Changes for 03/04.......................................................................................................1
Drive System Adjustment ............................................................................................1
Testing Hydro Pump Output........................................................................................4
Replacing the Hydro Pump .........................................................................................6
Replacing the Hydro Motor........................................................................................10
Brake Linkage Adjustment ........................................................................................13
M72 Update...............................................................................................................16
Other Tank Features .................................................................................................19
1
2
Cub Cadet Commercial M60 Tank - 2002 and prior years
Service Manual
Cub Cadet Commercial M60 Tank - 2002 and prior years
PTO Belt Removal
1. Pivot the seat assembly forward.
2. Remove the lock nut and hex bolt securing the
negative battery cable to the negative battery terminal using a 7/16” socket and a 7/16” wrench.
3. Remove the sparkplug wires from the sparkplugs
on the engine.
4. Lower the cutting deck to the lowest position.
5. Grasp the floor panel assembly and raise it to the
fully open position.
6. Unlatch the PTO belt release lever and slowly
pivot it away from the unit. See Figure 1.
7. Grasp the idler pulley and pull outward while rolling the PTO belt off. See Figure 2.
Idler Pulley
Pull Outward
PTO Belt
Figure 2
8. Roll the PTO belt off of the upper portion of the
double stack pulley. See Figure 3.
Release Lever
Figure 1
PTO Belt
Double Stack Pulley
Figure 3
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Cub Cadet Commercial M60 Tank - 2002 and prior years
9. Remove the PTO belt from the electric clutch pulley. See Figure 4.
PTO Belt
Electric Clutch Pulley
Figure 4
10. Inspect the V-belt for damage or wear.
11. Install the PTO belt in the reverse order above.
2
Cub Cadet Commercial M60 Tank - 2002 and prior years
Cutting Deck Removal
NOTE: Prior to performing this section, the PTO
Belt Removal section must be performed.
1. Make certain the cutting deck is at the lowest
position. See Figure 1.
Deck Lift Handle
Clevis Pin
Hairpin
4. Pull the front mounting rod to the right several
inches until the left frame strut and lift brace are
free. See Figure 3.
Frame Strut
Above
To
Here
From
Here
Below
Lowest Position
Figure 1
2. Remove the hairpin and clevis pin from below
the deck lift handle, and install them above the
deck lift handle.
NOTE: This step must be performed to make
certain the deck lift handle is restrained and will
not spring back up during cutting deck removal.
3. Remove all six linch pins securing the cutting
deck to the deck link eye bolts and front mounting rod. See Figure 2.
Right
Front Mounting Rod
Lift Brace
Figure 3
5. Pull the front mounting rod to the left until the
right frame strut and lift brace are free.
6. Remove all four of the lift link eye bolts from the
deck lift pins. See Figure 4.
Eyebolt
Cutting
Deck
Eye Bolts
Figure 2
Deck Lift
Pins
Figure 4
7. Push the lift handle down (against the spring tension) and remove the hairpin and clevis pin from
above it.
8. Slowly raise the lift handle all the way up.
NOTE: The lift handle can swing up quickly if
care is not taken to hold it back.
3
Cub Cadet Commercial M60 Tank - 2002 and prior years
9. Install the clevis pin and hairpin below the lift
handle.
10. Slide the cutting deck assembly out from below
the unit. See Figure 5.
Cutting Deck
Figure 5
11. Install the cutting deck in the reverse order
above.
4
Cub Cadet Commercial M60 Tank - 2002 and prior years
Cutting Deck Drive Belt Removal
NOTE: Prior to performing this section, the PTO
Belt Removal and Cutting Deck Removal sections must be performed.
Cutting Deck
Figure 1
3. Release the spring tension being applied to the
deck drive belt by installing a 1/2" ratchet in the
square hole of the idler arm assembly and pulling
outward. See Figure 3.
1/2” Ratchet
in Square
Hole
Spring
Ten si on
Pull
Figure 3
4. Roll the deck drive belt off of the idler pulley. See
Figure 4.
Idler Arm
Assembly
1. Loosen both knobs securing each belt cover to
the deck assembly. See Figure 2.
Belt Cover
Knobs
Figure 2
2. Remove the belt covers.
Spindle Pulley
Idler Pulley
Spindle
Cover
Bracket
Deck Drive Belt
Lock Nut
5. Slowly retract the 1/2" ratchet and release the
compression spring tension.
6. Remove the deck drive belt from all three spindle
pulleys.
7. Remove both hex flange lock nuts securing the
left inner spindle cover bracket to the deck using
a 9/16” socket and a 9/16” wrench.
Compression
Spring
Figure 4
8. Inspect the deck drive belt for damage or wear.
9. Install the deck drive belt in the reverse order
above.
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Cub Cadet Commercial M60 Tank - 2002 and prior years
Spindle Removal and Disassembly
NOTE: Prior to performing this section, the Cut-
ting Deck Drive Belt Removal section must be
performed.
1. Remove the hex flange lock nut securing the
blade assembly together using a 1-1/8” socket
and a 1-1/8” wrench.
2. Remove the blade and spacer from the large hex
cap screw.
3. Remove the large hex cap screw and washer.
See Figure 1.
Large hex cap screw and washer
5. Press all of the spindle components apart and
inspect for wear or damage. See Figure 2.
Shaft Blade Spindle
Ring Seal
Cone Bearing
Oil Seal
NOTE: The bearings will be damaged by the
force of the press. New bearings should be
heated and set into position.
Spindle Housing
Figure 2
Spindle Housing
Spindle Hex Cap Screws and Lock Nuts
Figure 1
4. Remove all four hex cap screws and hex flange
lock nuts securing the spindle housing to the
deck assembly using a 9/16” socket and a 9/16”
wrench.
6. Assemble the spindle in the reverse order above.
6
Cub Cadet Commercial M60 Tank - 2002 and prior years
Hydrostatic Drive Belt Removal
1. Pivot the seat assembly forward.
2. Remove the lock nut and hex bolt securing the
negative battery cable to the negative battery terminal using a 7/16” socket and a 7/16” wrench.
3. Remove the sparkplug wires from the sparkplugs
on the engine.
4. Remove the hex insert lock nuts and flat washers
from the input shafts of the right and left hydrostatic pump assemblies using a 3/4" socket. See
Figure 1.
Access Holes
Lock Nut
Input Shaft
Figure 1
Flat Washer
5. Remove the idler arm extension spring from the
left frame rail using vice grips. See Figure 2.
Idler Arm
Extension Spring
Frame Rail
Figure 2
NOTE: Make certain the orientation of the spring
is recorded.
6. Remove the extension spring from the idler arm
and set it aside.
7. Remove both hex cap screws and flange lock
nuts securing the PTO clutch retension bracket
to the frame using a 1/2" socket and a 1/2"
wrench. See Figure 3.
NOTE: There are two 4” holes above each
hydrostatic pump assembly to access the lock
nuts.
PTO Bracket
Hex Cap Screws
Clutch Retension
Bracket
Figure 3
7
Cub Cadet Commercial M60 Tank - 2002 and prior years
8. Disconnect the PTO clutch connector from the
wiring harness connector using a small flat-blade
screw driver. See Figure 4.
Wiring Harness
PTO Clutch Connector
Figure 4
9. Roll the drive belt up and off of the right transmission pulley. See Figure 5.
12. Remove the drive belt from the engine drive pulley. See Figure 6.
Engine Drive
Pulley
Figure 6
13. Inspect the drive belt for damage or wear.
14. Install the hydrostatic drive belt in the reverse
order above.
Drive Belt
Transmission
Pulley
Figure 5
10. Push the drive belt up and over the right hydrostatic input shaft, hydro pulley fan and transmission pulley.
11. Push the drive belt up and over the left hydrostatic input shaft, hydro pulley fan and transmission pulley.
8
Cub Cadet Commercial M60 Tank - 2002 and prior years
Electric PTO Clutch Removal
NOTE: Prior to performing this section, the
Hydrostatic Drive Belt Removal section must be
performed.
1. Remove the hex lock nut securing the negative
cable to the right front engine mounting bolt
using a 1/2" wrench. See Figure 1.
Lock Nut
Negative Cable
Figure 1
3. Loosen the front engine mounting bolts and hex
flange lock nuts securing the engine to the frame
using a 1/2" socket and a 1/2" wrench.
See Figure 3.
Engine Mounting Bolts
Figure 3
4. Remove the hex cap screw, lock washer and flat
washer securing the electric PTO clutch to the
engine crankshaft using a 5/8” socket.
See Figure 4.
2. Remove the hex lock nut securing the ground
wires to the left front engine mounting bolt using
a 1/2" wrench. See Figure 2.
Lock Nut
Ground Wires
Figure 2
Electric
PTO
Clutch
Flat Washer
Lock
Washer
Hex Cap Screw
Figure 4
9
Cub Cadet Commercial M60 Tank - 2002 and prior years
5. Lift the rear of the engine slightly and remove the
electric PTO clutch from the engine crankshaft.
See Figure 5.
Electric PTO Clutch
Figure 5
6. Inspect and test the electric PTO clutch.
7. Install the electric PTO clutch in the reverse
order above.
Electric PTO Clutch Specifications
• Ogura part #520038
• Bore of 1-1/8", keyway for 1/4"x 1/4" square key
• Forged steel rotor
• E-coated metal parts
• Epoxy coated coil
• Sealed bearings with high temperature, long life
grease
• Static torque rating of 110 lb.-ft.
• Minimum "pull-in" voltage is 8 VDC
• Consumption of 50 watts (6 amps) at 12 VDC
• Coil resistance is 3 to 4 ohms at 70 F.
• Air gap (re-setting) between 0.013" (minimum)
and 0.015"
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Cub Cadet Commercial M60 Tank - 2002 and prior years
Hydrostatic Drive Assembly Removal
NOTE: The following section was performed with
a lift. Make certain the front castor wheels are
rotated rearward for maximum stability.
1. Pivot the seat assembly forward.
2. Remove the lock nut and hex bolt securing the
negative battery cable to the negative battery terminal using a 7/16” socket and a 7/16” wrench.
3. Remove the sparkplug wires from the sparkplugs
on the engine.
4. Place suitable hydrostatic fluid drain containers
under each hydrostatic pump and the hydrostatic
reservoir. See Figure 1.
6. Remove the drain caps from both hydrostatic
pumps, and the drain plug from the hydrostatic
reservoir using a 5/8” socket and an 11/16”
socket. See Figure 2.
Drain
Plug
Drain Caps
Figure 2
7. Allow all of the hydrostatic fluid to drain from the
system.
Hydrostatic Fluid
Drain Containers
Figure 1
5. Remove the fill cap from the hydrostatic reservoir.
8. Install all three oil drain plugs using a 5/8” socket
and an 11/16” socket.
9. Raise the rear of the unit until the rear wheels
are off the ground.
10. Remove all four lug nuts securing each rear tire
assembly using a 3/4" socket. See Figure 3.
11
Figure 3
Cub Cadet Commercial M60 Tank - 2002 and prior years
11. Support the bottom of the skid plate assembly
from below.
12. Make certain the parking brake is released. See
Figure 4.
Parking Brake
Figure 4
13. Remove the idler arm extension spring from the
left frame rail using vice grips. See Figure 5.
15. Remove both hairpins and clevis pins securing
the brake rod yokes to the brake actuation arms.
See Figure 6.
Clevis Pin
Brake Rod
Yoke
Figure 6
16. Engage the parking brake lever.
NOTE: The brake rod yokes will be pulled
forward and out of the way.
Hairpin
Brake Actuation
Arm
Left Frame Rail
Extension Spring
Figure 5
NOTE: Make certain the orientation of the spring
is recorded.
14. Remove the extension spring from the idler arm
and set it aside.
Idler Arm
17. Remove the hex flange lock nuts and shouldered
hex screws securing both connecting rod ball
joints to the center belle crank assemblies using
a 9/16” socket and a 9/16” wrench. See Figure 7.
Flanged Lock Nuts
and Hex Screws
Ball Joints
Center Bell Crank
Assemblies
Figure 7
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Cub Cadet Commercial M60 Tank - 2002 and prior years
18. Remove the hairpin and clevis pin from below
the deck lift lever.
19. Push the deck lift lever down as far as it will go
and place the clevis pin and hairpin above it. See
Figure 8.
Hairpin
Clevis Pin
Lift Lever
Figure 8
21. Remove both of the hex bolts, flat washers and
lock nuts securing the right and left hydrostatic
pumps to the frame using a 9/16” socket and a
9/16” wrench. See Figure 10.
Hex Bolts
and
Flat Washers
Skid Plate
Figure 10
22. Lower the skid plate assembly slightly.
NOTE: This keeps the deck links down.
20. Remove both hex lock nuts and carriage bolts
securing the skid plate frame struts to the mid
frame of the unit using a 9/16” socket.
See Figure 9.
Hex Lock Nuts and
Carriage Bolts
Frame
Struts
Deck Links Down
Figure 9
23. Remove the drive belt from both of the hydrostatic transmission pulleys.
24. Pull the drive belt rearward and out of the way.
NOTE: The drive belt is still secured around the
electric clutch.
25. Mark and record all of the hydrostatic line connections to the hydrostatic pumps.
See Figure 11.
Hydrostatic Lines
Hydrostatic Pumps
13
Figure 11
Cub Cadet Commercial M60 Tank - 2002 and prior years
26. Make certain the hydrostatic fluid drain containers are below the skid plate assembly.
27. Remove all four of the hydraulic line connectors
from both hydrostatic pumps using a 3/4" wrench
and a 7/8” wrench.
28. Slowly lower the skid plate assembly and remove
it from the unit. See Figure 12.
Skid Plate
Assembly
Figure 12
29. Install the hydrostatic drive assembly in the
reverse order above.
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Cub Cadet Commercial M60 Tank - 2002 and prior years
Hydrostatic Pump / Transmission Removal
NOTE: The following section has been written for
training and includes multiple steps for both the
left and right hydrostatic pump / transmission
assemblies. Prior to performing this section, the
Hydrostatic Drive Assembly Removal section
must be performed.
.
3. Remove both hex bolts and flange lock nuts
securing the short connecting rods to the neutral
return plates using a 1/2" socket and a 9/16”
wrench. See Figure 3.
Hex Bolts and
Lock Nuts
Neutral Return
Plates
Connecting
Rods
Figure 3
4. Remove both short connecting rods and set
them aside.
Figure 1
1. Remove both hairpins securing the pump
release rods to the bypass valves. See Figure 2.
Hairpin
Pump Release
Rod
Bypass
Valve
Figure 2
2. Remove both pump release rods.
NOTE: Record the orientation of the connecting
rods to the neutral return plates on both hydrostatic transmissions.
5. Remove the hex cap screw, flat washer and hex
flange lock nut that secure each frame strut to
the skid plate assembly using a 9/16” socket and
a 9/16” wrench. See Figure 4.
Hex Cap Screws,
Flat Washers, and
Hex Flange Lock Nuts
Frame Strut
Skid Plate
15
Figure 4
Cub Cadet Commercial M60 Tank - 2002 and prior years
6. Remove all four hex cap screws and flange lock
nuts that secure the hydrostatic pump assemblies to the center pump support brackets using a
1/2" socket and a 1/2" wrench. See Figure 5.
Center Pump Support
Brackets
Hex Cap Screws
and Lock Nuts
Hydrostatic Pump Assembly
NOTE: The thick flat washers are used to make
up the difference between the hydrostatic pump
assembly housings and the skid plate assembly,
at the upper rear mounting hole (closest to the
dump valve lockout holes). See Figure 7.
Thick Flat
Washers
Figure 5
7. Remove all four remaining hex cap screws, flat
washers and flange lock nuts securing the hydrostatic pump assemblies to the skid plate assembly using a 1/2" socket and a 1/2" wrench. See
Figure 6.
Hydrostatic
Pump
Hex Cap Screws,
Flat Washers, and
Lock Nuts
Figure 6
Skid Plate
Figure 7
8. Remove both hydrostatic pump assemblies from
the skid plate assembly. See Figure 8.
Skid Plate
Figure 8
9. Assemble the hydrostatic pump/transmission
assembly in the reverse order above.
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