CVT Drive and brake system
57
About this chapter
The drive and brake systems for the Cub Cadet Series
1000 tractor are combined. Two reasons for this:
•
The brake on the Series 1000 tractor is supplied
with the transaxle.
•
The brake pedal applies the brake and disen-
gages the drive system. Both systems share
common linkage.
The transaxle used in the Cub Cadet Series 1000 is a
relatively simple gearbox containing forward, neutral,
and reverse gears. The variation in speed is all han-
dled by the variable speed pulley system that drives
the transaxle.
If the tractor has drive system problems within the war-
ranty period, the servicing Cub Cadet dealer has the
following responsibilities:
•
Eliminate any external causes for drive system
problems before removing the transmission from
the tractor.
•
External problems would include, but are not lim-
ited to: belt, linkage, or brake issues.
•
Look for signs or over-use or abuse.
Transaxles that fail because of over use or
abuse are not warrantable. They are to be
repaired or replaced at the customer’s expense.
•
If the problem is internal, the transmission is to
be replaced under the like-kind exchange policy.
•
If a transaxle is replaced under warranty, the
original transaxle may be called-back for evalua-
tion by MTD Vendor Recovery Dept.
•
Warranty Claims will be denied, returned, or
adjusted if the returned transaxle does not meet
Cub Cadet’s replacement criteria.
•
Dealers are encouraged to open transaxles for
inspection, allowing them to identify a problem
within the transaxle.
•
Beyond warranty, dealers are free to repair
transmissions at customer expense.
•
If the dealer has questions regarding transaxle
replacement, they should call Cub Cadet Ser-
vice using the dealer only line before proceed-
ing.
About the variable speed drive system.
There are two drive belts in the system. A long drive
belt transfers power from the engine crankshaft to the
lower sheave of the variable-speed pulley. A shorter
belt fits in the upper sheave of the variable speed pul-
ley; transferring power from there to the input pulley on
the transaxle.
•
The drive control pedal tensions the front drive
belt.
•
The center partition of the variable speed pulley
separates the lower (front) belt from the upper
(rear) belt.
•
As the front belt is tensioned, it is drawn deeper
into its sheave. The effective circumference of
the driven pulley shrinks.
•
As the front belt is drawn deeper into its sheave,
the center partition is forced upward, making the
upper shave narrower.
•
As the upper sheave pinches-down on the rear
drive belt, the belt is forced outward in the
sheave. The effective circumference of the pul-
ley driving the rear belt grows.
•
As the upper and lower sheaves change size,
the drive ratio shifts increasing the speed of the
rear belt.
•
As the sheave that drives the rear belt changes
size, the belt must be kept under constant ten-
sion. A tension idler pulley accomplishes this
task.
•
The clutch/brake pedal automatically de-ten-
sions the front belt when it is applied.
CHAPTER 6: CVT DRIVE AND BRAKE SYSTEM
Summary of Contents for 900 series
Page 2: ......
Page 6: ......
Page 12: ...ENGINE RELATED PARTS 6 ...
Page 62: ...HYDRO DRIVE AND BRAKE SYSTEM 56 ...
Page 98: ...CVT Drive and brake system 92 ...
Page 135: ...ELECTRICAL SYSTEM 129 Schematics LECTRIC 04 ...
Page 136: ...ELECTRICAL SYSTEM 130 ANUAL 04 ...
Page 152: ...Cutting Decks And Lift Shaft 146 ...
Page 158: ...APPENDIX 152 ...
Page 165: ...310 0510 IHT 5 MODEL RECOGNITION 618 0319 166768 104 1760 173839 036932 618 0389A ...
Page 190: ...310 0510 IHT 30 310 0710 EXPLODED VIEW ...
Page 192: ...310 0510 IHT 32 310 0610 EXPLODED VIEW ...
Page 194: ...310 0510 IHT 34 310 0510 EXPLODED VIEW 6 SEALANT 57 20W 50 OIL 127 SEAL O RING KIT ...
Page 198: ...310 0510 IHT 38 2008 HYDRO GEAR Printed in U S A Rev P1 ...