Dixon 539 132900 52" Product manual

Please read these instructions carefully and make sure you
understand them before using the machine.
Blower Kit
Operators Manual
Parts Manual
539 132900 52"
539 132901 60"

©2008 HTC, Inc. All Rights Reserved.
Beatrice, NE. Printed in U.S.A.

CONTENTS
SAFETY RULES
GENERAL OPERATION................................4
SLOPE OPERATION.....................................4
CHILDREN....................................................5
SERVICE.......................................................5
COLLECTION SYSTEM......................................7
OPERATION......................................................12
SERVICE...........................................................13
CLEANING AND WASHING........................13
CARING FOR HOSES ................................13
STORAGE...................................................13
WARNING
Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth defects
or other reproductive harm.

4
SAFETY RULES
SAFE OPERATION PRACTICES FOR RIDE-ON MOWERS
DANGER !
THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET AND THROWING OBJECTS.
FAILURE TO OBSERVE THE FOLLOWING SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS INJURY
OR DEATH.
I. GENERAL OPERATION
• Read, understand and follow all instructions in the
manual and on the machine before starting.
• Allow only responsible adults, who are familiar with
the instructions, to operate the machine.
• Clear the area of rocks, stones, toys, wire or other
such objects that could be picked up and thrown by
the blades.
• Be sure the area is clear of all people and pets
before mowing. Stop the machine if anyone enters
the area.
• Never carry passengers or children, even with
blades off.
• Do not mow in reverse unless absolutely
necessary. Always look down and behind before
and while backing up.
• Watch out for traffic when crossing or operating
near roadways.
• Use extra care when loading and unloading the
machine onto a trailer or truck.
• Data indicates that operators, age 60 years and
above, are involved in a large percentage of riding
mower-related injuries. These operators should
evaluate their ability to operate the riding mower
safely enough to protect themselves and others
from serious injury.
• DO NOT operate mower with grass catcher, unless
the front weights are installed (if indicated as
needed the in Operator's Manual).
• Keep machine free of grass, leaves or other debris
buildup which can touch hot exhaust or engine
parts and burn. Do not allow the mower deck
to plow leaves or other debris that can cause a
buildup to occur. Clean any oil or fuel spillage
before operating or storing the machine. Allow
machine to cool before storage.
II. SLOPE OPERATION
Slopes are a major factor related to loss-of-control and
tipover accidents, which can result in severe injury or
death. All slopes require extra caution. If you cannot
back up the slope or if you feel uneasy on it, do not
mow it.
DO
• Mow up and down slopes (10° Max.), not across.
• Remove obstacles such as rocks, tree limbs.
• Watch for holes, ruts, or bumps. Uneven terrain
could overturn the machine. Tall grass can hide
obstacles.
• Use slow speed. Choose a low speed so that you
will not have to stop while on the slope.
• Use extra care with grass catchers or other
attachments. These can change the stability of the
machine.
• Keep all movement on the slopes slow and
gradual. Do not make sudden changes in speed or
direction.
• Avoid starting or stopping on a slope. If tires lose
traction, disengage the blades and proceed slowly
straight down the slope.
WARNING
DO NOT tow with this mower. It may
jackknife or over turn causing damage to
the mower and possibly serious injury to the
operator.
• Be aware of the mower discharge direction and do
not direct it towards anyone. Do not operate the
mower without either the entire grass catcher or
the guard in place.
• Slow down before turning.
• Never leave the machine unattended when the
engine is running. Always turn off the blades, set
the parking brake, stop the engine and remove the
key before leaving the machine.
• Turn off blades when not mowing.
• Stop engine before removing grass catcher or
unclogging chute.
• Mow only in daylight or good artificial light.
• Do not operate the machine while under the
influence of alcohol or drugs.

5
SAFETY RULES
SAFE OPERATION PRACTICES FOR RIDE-ON MOWERS
DO NOT
• Do not turn on slopes unless necessary, and then,
turn slowly and gradually downhill, if possible.
• Do not mow near drop-offs, ditches, or
embankments. The mower could suddenly turn
over if a wheel is over the edge of a cliff
or ditch, or if an edge caves in.
• Do not mow on wet grass. Reduced traction could
cause sliding.
• Do not try to stabilize the machine by putting your
foot on the ground.
III. CHILDREN
Tragic accidents can occur if the operator is not alert to
the presence of children. Children are often attracted
to the machine and the mowing activity. Never assume
that children will remain where you last saw them.
• NEVER allow children to operate the machine.
• Keep children out of the mowing area and under
the watchful care of another responsible adult.
• Be alert and turn off the machine if children enter
the area.
• Before and when backing, look behind and down
for small children.
• Never carry children. They may fall off and be
seriously injured or interfere with safe machine
operation.
• Use extra care when approaching blind corners,
shrubs, trees, or other objects that may obscure
vision.
IV. SERVICE
• The operation of any mower can result in foreign
objects thrown into the eyes, which can result
in severe eye damage. Always wear safety
glasses or eye shields while operating your
mower or performing any adjustments or repairs.
We recommend a wide vision safety mask over
spectacles or standard safety glasses.
• Use extra care in handling gasoline and other
fuels. They are flammable and vapors are
explosive.
- Use only an approved container.
- Never remove gas cap or add fuel with the
engine running.
- Allow engine to cool before refueling.
- Do not smoke.
- Never refuel the machine indoors.
- Never store the machine or fuel container
inside where there is an open flame, such as a
water heater.
• Never run a machine inside a closed area.
WARNING
Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth defects
or other reproductive harm.
CAUTION
In order to prevent accidental starting when
setting up, transporting, adjusting or making
repairs, always disconnect spark plug wire and
place wire where it cannot contact spark plug.
• Keep nuts and bolts, especially blade attachment
bolts, tight and keep equipment in good condition.
• Never tamper with safety devices. Check there
proper operation regularly.
• Keep machine free of grass, leaves, or other debris
buildup. Clean oil or fuel spillage. Allow machine to
cool before storing.
• Stop and inspect the equipment if you strike an
object. Repair, if necessary, before restarting.
• Never make adjustments or repairs with the engine
running.
• Grass catcher components are subject to wear,
damage, and deterioration, which could expose
moving parts or allow objects to be thrown.
Frequently check components and replace
with manufacturer’s recommended parts, when
necessary.
• Mower blades are sharp and can cut. Wrap the
blade(s) or wear gloves, and use extra caution
when servicing them.

6
SAFETY RULES
SAFE OPERATION PRACTICES FOR RIDE-ON MOWERS
• Check brake operation frequently. Adjust and
service as shown in the Operator’s Manual.
• Be sure the area is clear of other people before
mowing. Stop machine if anyone enters the area.
• Never carry passengers or children even with the
blades off.
• Do not drive in reverse unless absolutely
necessary. Always look down and behind before
and while backing.
• Never carry children. They may fall off and be
seriously injured or interfere with safe machine
operation.
WARNING
Battery posts, terminals and related
accessories contain lead and lead
compounds, chemicals know to the State of
California to cause cancer and birth defects
or other reproductive harm. Wash hands
after handling.
• Keep children out of the mowing area and under
the watchful care of another responsible adult.
• Be alert and turn machine off if children enter the
area.
• Before and when backing, look behind and down
for small children.
• Mow up and down slopes (10° Max), not across.
• Remove obstacles such as rocks, tree limbs, etc.
• Watch for holes, ruts, or bumps. Uneven terrain
could overturn the machine. Tall grass can hide
obstacles.
• Use a slow speed while on slope or hill.
• Avoid starting or stopping on a slope. If tires lose
traction, disengage the blades and proceed slowly
straight down the slope.
• If machine stops while going uphill, disengage
blades, shift into reverse and back down slowly.
• Do not turn on slopes unless necessary, and then,
turn slowly and gradually downhill, if possible.

7
COLLECTION SYSTEM
Belt Cover
Discharge Hose
Blower Assembly

8
ASSEMBLY
Open Drive Kit box and remove all components.1. Place mower deck in the lowest cutting height.2.
Attach front mounting bracket to deck with 1" bolts5. and nuts supplied in kit. To allow for adjustments
during final installation, do not fully tighten nuts.
Slacken the tension on the deck belt and roll the6. belt off the deck pulley. (See Operator's Manual if
necessary.) 1
1. Front Mounting Bracket
2. Bolts, 1"
2
Remove
Remove
Remove deflector shield assembly by removing3. bolt, washer and nuts on the upper side.
Remove the belt shield from the right side pulley.4. Retain hardware for later use.

9
ASSEMBLY
To replace the deck pulley spindle, remove pulley7. bolt and washer at the top of the pulley.
From the underside of the deck, slide the spindle8. shaft and blade out of the housing.
Install new spindle shaft, blower drive pulley and9. hardware. See illustration. Torque pulley bolt to 45
ft/lbs Torque blade bolt to 90 ft/lbs.
Replace the deck belt onto the deck pulley.10.
WARNING
Blades are sharp. Protect your
hands with gloves and/or wrap
blades with a heavy cloth when
handling.
1
3
5
6
7
8
9
2
1. Bolt, ½-20 x 2½V6. Spindle ShaftV
2. WasherV7. Bottom Dust Cap
3. SpacerV8. Blade
4. Spindle KeyV9. Blade Bolt
5. PulleyV
VSupplied in Blower Kit
4
Place the blower assembly on its top.11. Using a12. 5/32" Allen wrench, remove the screw on
the rear of the pulley shield and set shield and
screw aside.
1
2
1. Pulley Shield
2. Blower Belt
3. Rear Pulley Shield Screw
4. Deck Plate (removed for visibility)
4
3

10
ASSEMBLY
Loosen the nut on the belt guide and install the belt13. on the pulley.
Place the belt guide approximately14. 1/8" away from
the pulley and retighten the nut.
Reinstall the pulley shield and tighten nut securely.15. 1
2
3
1. Guide Nut
2. Belt Guide
3. Rear Pulley Shield Screw
4. Pulley
To mount the blower assembly to the deck, align16. the plate pin into the deck mounting tube. Slide the
front mounting bracket between the two bracket
ears. Pass the clevis pin through the bracket ears
and secure with hair pin.
To allow belt installation, latch the idler arm into the17. idler keeper. Install the belt on the deck pulley and
release the idler arm from the keeper.
Tighten hardware on front mounting bracket.18. 1
2
3
4
5
76
8
1. Plate Pin 5. Bracket Ears
2. Deck Tube 6. Idler Arm
3. Clevis Pin 7. Idler Keeper
4. Hair Pin 8. Pulley
4
Tighten

11
ASSEMBLY
Install the new lower belt shield, using hardware19. reserved from original deck shield.
Secure upper belt shield to lower belt shield with20. wing nuts.
1
2
3
1. Lower Belt Shield
2. Upper Belt Shield
3. Wing Nut
The supplied discharge hose is of universal length21. and may need to be shortened/trimmed to suit
application. If the kit is used on an older collection
system, the hood opening may also require minor
trimming of the outlet hole.

12
OPERATION
NEVER USE THE COLLECTION SYSTEM WITHOUT
THE BLOWER ASSEMBLYAND HOSES SECURELY
ATTACHED.
Follow the mower operation instructions in your mower
operator’s manual.
When operating your grass catcher on a lawn where
grass and leaf bagging equipment has not been used,
you are picking up thatch and debris that has accumu-
lated for long periods of time. The amount collected
and the total time of operation may be greater than you
will experience with regular use of your grass catcher.
• Always run throttle at full speed when bagging.
• Select a speed low enough to give good mower
cutting performance, good quality cut and good
bagging performance.
NOTE: It may be necessary to overlap width of
cut to suit your conditions.
• In heavy grass it may be necessary to mow and
collect at a slower ground speed.
• If grass is extremely tall, it should be mowed twice.
The first time relatively high, the second time to
desired height.
• Make sure hoses are connected at both ends.
Inspect hoses prior to each use.
• Never attempt to unclog the collection system until
the mower’s engine is shut off and all moving parts
come to a complete stop.
• Avoid cutting wet grass or mowing in the morning
while the dew is still heavy. Grass clippings
collected under these conditions tend to be sticky
and adhere to the walls of the flow path, causing
clogging.
• Do not stand behind vent at the rear of collection
system. There is potential for small pieces of
blowing debris to escape through the vent.
• Wear eye and ear protection.
• If the grass catcher fails to pick up cut grass
or leaves, it is an indication that clogging has
occurred in the system or that the grass catcher
containers are full.
CAUTION
• DO NOT operate mower with collection
system partially installed.
• Disengage blades and stop engine
before leaving mower seat to empty
containers, unclogging chutes or
servicing.
• Close cover before starting.
• Disengage mower blades when crossing
driveways, gravel surfaces and or areas
where thrown objects could be a hazard.
• DO NOT attempt to vacuum up cans or
other potentially hazardous projectiles.
CAUTION
BEFORE PERFORMING ANY MAINTENANCE,
SERVICE OR ADJUSTMENTS:
• Set parking brake.
• Place motion control levers in
“NEUTRAL” position.
• Place clutch control in “DISENGAGED”
position.
• Turn ignition key to “OFF” position.
• Make sure blades and all moving parts
have completely stopped.
• Disconnect spark plug wire(s) from spark
plug(s) and place wire where it cannot
come in contact with plug.
WARNING
The collection system hopper must be
completely empty while driving forward
onto a trailer. If the mower must be loaded
onto a trailer while there is still debris in the
container, the mower must be backed up
onto the trailer to avoid tipping.

13
SERVICE
Cleaning and Washing
Regular cleaning, washing and lubricating will prolong
the service of the machine.
NOTE: Use care with power washers to avoid
damage to decals. Limit direct spray on these
items.
DO NOT EXCEED 1000 PSI WATER PRESSURE
FOR CLEANING.
Caring For Hoses
1. Inspect hoses before each use. If hoses have
excessive wear, tears, or punctures, replace
immediately.
2. To prolong the life of the hose, periodically
rotate hose and turn hose end to end. Refer to
Preventative Maintenance Schedule in this manual.
3. Avoid twists and sharp turns in the hoses, as they
will increase wear on the hoses.
4. Avoid dragging the lower hose along the sides of
buildings or other hard surfaces.
Storage
When grass catcher is to be stored for a period of time,
clean it thoroughly, remove all dirt, grass, leaves, etc.
Store in a clean, dry place. Covered or indoor storage
is recommended.
CAUTION
Do not leave grass in bagger containers.
Empty containers after each use and
before storing. Failure to do so may result
in spontaneous combustion which could
develop into a fire.
CAUTION
Grass catcher components are subject to
wear, damage and deterioration, which could
expose moving parts or allow objects to be
thrown. Frequently check components and
replace with manufacturer’s recommended
parts, when necessary.

14
PARTS
12
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27 28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43 44
45
3
35
24
33
33
33 10
29
35
35
23
29
22
33
29
29
36
LOCKING COLLAR
THIS SIDE UP
THIS SIDE DOWN
HUB DOWN

15
PARTS
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
539 1112251.. ...1 ...FLOOR WELDMENT
539 1112272.. ...1 ...BEARING PLATE
539 1026913.. ...5 ...FLANGETTE
539 1057434.. ...1 ...DECAL, NO STEP
539 1057855.. ...1 ...DECAL, WARNING
539 1067416.. ...1 ...DECAL, SEVERING
539 1025357.. ...1 ...GREASE CAP
539 1111848.. ....1 ....BELT GUIDE
539 9161599.. ...1 ...SPRING
539 10678610.. ...2 ...BEARING
539 10224411.. ...3 ...BUSHING, MACHINE 18 GA
539 11011112.. ...1 ...FAN WELDMENT
539 10671313.. ...1 ...SHEAVE
539 10206714.. ...1 ...KEY ¼ SQ x ¾
539 10675215.. ...1 ...FAN COVER WLDMT
539 10650416.. ...1 ...HEAVY WASHER
539 11174717.. ...1 ...PULLEY SHIELD, 72
539 11081318.. ...1 ...RETAINER, "U" TYPE
539 11174619.. ...1 ...BLOWER HOUSING
539 11010320.. ...1 ...IDLER KEEPER
539 13292321.. ...1 ...BELT, 52
539 132938...1 .... BELT, 60
539 99007422.. .10 ...RHSNB ¼-20 x ¾ GR2
539 11122923.. ...3 ...SCREW ¼-20 x 5/8SKT HD
539 99031624.. ...7 ...RHSNB 5/16-18 x ¾
539 99020825.. ...1 ...RHSNB 5/16-18 x 1
539 10047226.. ...3 ...RHSNB 5/16-18 x 1¼
539 10172127.. ...1 ...HCS 5/16-18 x 2¾
539 10014128.. ...1 ...HCS 7/16-20 x 1½
539 10812029.. .12 ...NUT ¼-20 HEX THIN NYLOC
539 99018430.. ...1 ...NUT 5/16-18 HEX CTRLK
539 99019631.. ...3 ...NUT, 5/16-18 HEX
539 99058532.. ...1 ...NUT 5/16-18 HEX WHIZLK
539 99071733.. .12 ...NUT 5/16-18 HEX NYLOC
539 97697934.. ...4 ...NUT 3/8-16 HEX NYLOC
539 99059835.. .12 ...WASHER, ¼ STD FLT
539 99069236.. ...2 ...WASHER, 5/16 STD FLT
539 99051737.. ...1 ...WASHER, 5/16 STD FLT
539 13293938.. ...1 ...SKID PLATE
539 99024739.. ...1 ...WASHER, 7/16 SPLT LOCK
539 13291140.. ...1 ...DECK PLATE, 52
539 132926...1 .... DECK PLATE, 60
539 10672141.. ...1 ...IDLER
539 10934542.. ...1 ...RHSNB, 3/8-16 x 1½
539 20028243.. ...1 ...NUT, 3/8-16 HEX JAM NYLOC
539 99012244.. ...1 ...WASHER, 3/8SAE FLT
539 11121845.. ...1 ...IDLER ARM
NOTE: ALL FASTENERS ARE GRADE 5 UNLESS OTHERWISE SPECIFIED.

16
PARTS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 17
18
2
3

17
PARTS
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
539 1329021.. ...1 ...BLOWER ASSEM 52
539 132903...1 .... BLOWER ASSEM 60
539 1329572.. ...1 ...BELT SHIELD, UPPER 52
539 132962...1 .... BELT SHIELD, UPPER 60
539 1329543.. ...1 ...BELT SHIELD, LOWER 52
539 132959...1 .... BELT SHIELD, LOWER 60
539 1329244.. ...1 ...BRACKET, MOUNTING 52
539 132931 ..1 ... BRACKET, MOUNTING 60
539 9902095.. ...2 ...HCS 5/16-18 x 1
539 9907176.. ...2 ...NUT 5/16-18 HEX NYLOC
03877.. ..............1 ...CLEVIS PIN
539 9150678.. ...1 ...HAIR PIN
539 1329229.. ...1 ...PULLEY, 52
539 132937 ..1 ... PULLEY, 60
539 13299610.. ...1 ...SPACER, PULLEY
539 11791211.. ...1 ...SPINDLE SHAFT
539 11619612.. ...1 ...KEY, OUTER SHAFT
539 11563613.. ...1 ...WASHER, ½ x 13/8x ¼
539 13307014.. ...1 ...HCS ½-20 x 2½
539 11128715.. ...1 ...DISCHARGE HOSE
539 10990116.. ...1 ...BAND, OVER CENTER
9707617.. ............1 ...HOSE CLAMP
539 99099718.. ...4 ...WINGNUT
NOTE: ALL FASTENERS ARE GRADE 5 UNLESS OTHERWISE SPECIFIED.

P/N 539 132905 IR 01/28/08