John Deere Turf Gator Utility Vehicle Service Repair Manual Instant Download (TM1686)

Power Train - Gear Repair - 126

POWER TRAIN - GEAR REPAIR

1. Clamp locking pliers (A) to movable (inboard) sheave.


2. Using spring scale (B) hooked into jaw of locking pliers
   as close to sheave edge as possible, measure the force
   required to rotate the movable sheave. Force measurement
   is taken while returning cam to closed position right before
   buttons (C) touch.

Specification:

Standard Wrap Brown Spring...... 22 - 20 N (5 - 9 lb)

Standard Wrap Green Spring.... 62 - 80 N (14 - 18 lb)

NOTE: Standard torsion spring (D) installation sets
spring tab in hole ì2î in moveable sheave half. Due to
variations in the spring rate of the torsion spring, the
spring tab may be factory set in holes ì1î or ì3î.

Results:

• Spring force within specification; secondary clutch is
  OK.
  Check engine rpm and performance.


• Spring force less than specification, up-shift will be
  faster and engine load greater, reducing engine rpm and
  response time. Check spring position, set spring tab in next
  higher number hole, (i.e. move from hole “2” to ”3”) and re-
  check spring force. Replace spring if still not within
  specifications.


• Spring force higher than specification, up-shift or
  acceleration will be slower, reducing engine load,
  increasing engine rpm and response time. Check spring
  position, set spring tab in next lower number hole, (i.e.
  move from hole “2” to ”1”) and recheck spring force.
  Replace spring if still not within specifications.

Repair

Primary Clutch Removal

1. Remove black plug in front of rear tire on left side of
   frame.


2. Remove drive belt.

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3. Remove plastic plug from clutch cover.


4. Remove clutch mounting bolt and washers.


5. Use JDG813-1A Clutch Removal Tool (B). Thread puller
   into clutch and against crankshaft. Tighten until clutch pops
   free from crankshaft taper.

NOTE: An air impact wrench works well to remove the

primary clutch.

6. Install clutch in reverse order of removal. Tighten clutch
   bolt to 40 ± 8 N•m (24 – 35 lb-ft).

Primary Clutch Repair

1. Remove clutch cover bolts. Remove cover. (Cover
   should pop off; do not pry on cover.)


2. Install JDG813-3 Tapered Holding Tool (A) and retain it
   with a M10 X 1.5 X 150 mm hex-head bolt.


3. Place an index mark on the spider and movable sheave
   with black marker.

IMPORTANT: Avoid damage! Lightly grease (A) end

of puller (B) to help prevent puller wear. To prevent

clutch thread damage, DO NOT thread bolt in any

farther than necessary to remove clutch.

IMPORTANT: Avoid damage! Always use JDG813-

Spanner Wrench (B) to remove spider. Unequal

pressure on clutch towers could cause stress

fractures or break them off. A medium strength

thread lock is used on spider threads.

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A

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