Toro 16400-16778 20014-20061 21-Inch Lawn Mower Service Manual, 1990-2007

WORM DRIVE TRANSMISSION
9
.   Clean the old gasket material from the mating
surfaces of the case and cover.
14. Remove the screw from the shift arm and remove
the shift arm, dust cover, and wear plate (Fig. 015). If
the ball bearing is to be replaced, press it out at this
time.
10. A hook or small screwdriver can be used to pry the
seals out of the case.
11.
12.
13.
An arbor press or large vise will be needed when
removing and replacing the bushings.
G
A
Clean the oil residue and any metal shavings from
the case.
B
Worm and helical gears are sold as a set. Even after
a short run time, they will develop a wear pattern.
Replacing only one gear will result in rapid failure
(Fig. 014).
C
D
E
A
F
Fig 015
3428-0165
A.   Roll Pin
E.   Shift Arm
B.   Latch Plate
C.   Dust Filter
D.   Dust Cover
F.
G.   Shift Rod
Screw
B
15.
Remove the roll pin and pull shifter rod out of the
cover. Clean the cover.
Fig 014
3428-0157
A.   Worm Shaft
B.   Helical Gear
WPM Drive Systems Manual
2-7
Product Specification
CategoriesLawn Mower Manual, Parts and Accessories Manuals, Toro Lawn Mower Manual
Tags, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
Model Number16576
Model Year1990, 1996, 1999, 2001, 2003, 2004, 2005, 2006, 2007
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- 168 pages
Document TypeOperator's Manual
LanguageEnglish
Serial Number0000001 - 0999999
Product NameToro Lawnmower
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
Product TypeWalk Behind Mower
Swath21 inch
DischargeSide
Engine ManufacturerTecumseh
Engine Oil Type 21 oz. (.62l) 30w or 10w-30 / API SH or higher
Engine Motor Model #TVS100-44021B
Engine Motor Type4 Cycle
Transmission TypeHand Push
Spark PlugChampion RJ17LM
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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