Page 1
Blower Kit
Operators Manual
Parts Manual
539 132900 52"
539 132901 60"
Please read these instructions carefully and make sure you
understand them before using the machine.
Page 2
©2008 HTC, Inc. All Rights Reserved.
Beatrice, NE. Printed in U.S.A.
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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.
Page 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.
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 artifi cial light.
• Do not operate the machine while under the
infl uence of alcohol or drugs.
4
• Watch out for traffi c 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.
Page 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.
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.
• Use extra care in handling gasoline and other
fuels. They are fl ammable 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 fl ame, such as a
water heater.
• Never run a machine inside a closed area.
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.
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Page 6
SAFETY RULES
SAFE OPERATION PRACTICES FOR RIDE-ON MOWERS
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.
• 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.
• 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.
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Page 7
Blower Assembly
COLLECTION SYSTEM
Discharge Hose
Belt Cover
7
Page 8
Open Drive Kit box and remove all components.1.
Place mower deck in the lowest cutting height.2.
Remove defl ector shield assembly by removing 3.
bolt, washer and nuts on the upper side.
Remove the belt shield from the right side pulley. 4.
Retain hardware for later use.
ASSEMBLY
Remove
Remove
Attach front mounting bracket to deck with 1" bolts 5.
and nuts supplied in kit. To allow for adjustments
during fi nal installation, do not fully tighten nuts.
Slacken the tension on the deck belt and roll the 6.
belt off the deck pulley. (See Operator's Manual if
necessary.)
8
2
1
1. Front Mounting Bracket
2. Bolts, 1"
Page 9
ASSEMBLY
To replace the deck pulley spindle, remove pulley 7.
bolt and washer at the top of the pulley.
From the underside of the deck, slide the spindle 8.
shaft and blade out of the housing.
WARNING
Blades are sharp. Protect your
hands with gloves and/or wrap
blades with a heavy cloth when
handling.
Install new spindle shaft, blower drive pulley and 9.
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.
1
2
3
4
5
6
7
8
Place the blower assembly on its top.11.
Using a 12.
5
/32" Allen wrench, remove the screw on
the rear of the pulley shield and set shield and
screw aside.
9
1. Bolt, ½-20 x 2½
2. WasherV 7. Bottom Dust Cap
3. Spacer
4. Spindle Key
5. Pulley
V Supplied in Blower Kit
V 8. Blade
V
3
2
V 6. Spindle ShaftV
V 9. Blade Bolt
1
4
1. Pulley Shield
2. Blower Belt
3. Rear Pulley Shield Screw
4. Deck Plate (removed for visibility)
9
Page 10
ASSEMBLY
Loosen the nut on the belt guide and install the belt 13.
on the pulley.
Place the belt guide approximately 14.
the pulley and retighten the nut.
Reinstall the pulley shield and tighten nut securely.15.
1
/8" away from
4
1. Guide Nut
2. Belt Guide
3. Rear Pulley Shield Screw
4. Pulley
3
2
1
To mount the blower assembly to the deck, align 16.
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 the 17.
idler keeper. Install the belt on the deck pulley and
release the idler arm from the keeper.
Tighten hardware on front mounting bracket.18.
6
7
5
3
4
Tighten
1. Plate Pin 5. Bracket Ears
2. Deck Tube 6. Idler Arm
3. Clevis Pin 7. Idler Keeper
4. Hair Pin 8. Pulley
2
8
1
10
Page 11
ASSEMBLY
Install the new lower belt shield, using hardware 19.
reserved from original deck shield.
Secure upper belt shield to lower belt shield with 20.
wing nuts.
3
2
1
1. Lower Belt Shield
2. Upper Belt Shield
3. Wing Nut
The supplied discharge hose is of universal length 21.
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.
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OPERATION
NEVER USE THE COLLECTION SYSTEM WITHOUT
THE BLOWER ASSEMBLY AND 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 accumulated 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 fi rst 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 fl ow 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.
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Page 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 fi re.
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.
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Page 14
LOCKING COLLAR
THIS SIDE UP
25
33
PARTS
7
3
33
31
4
5
10
26
12
6
29
15
24
22
THIS SIDE DOWN
45
29
35
22
34
37
30
42
20
40
36
24
32
36
27
33
33
2
3
35
23
35
23
19
29
14
11
39
28
35
38
29
10
17
18
HUB DOWN
29
33
8
13
16
21
1
9
41
44
43
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PARTS
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
539 111225 1.. ...1 ...FLOOR WELDMENT
539 111227 2.. ...1 ...BEARING PLATE
539 102691 3.. ...5 ...FLANGETTE
539 105743 4.. ...1 ...DECAL, NO STEP
539 105785 5.. ...1 ...DECAL, WARNING
539 106741 6.. ...1 ...DECAL, SEVERING
539 102535 7.. ...1 ...GREASE CAP
539 1111848.. ....1 ....BELT GUIDE
539 916159 9.. ...1 ...SPRING
539 106786 10.. ...2 ...BEARING
539 102244 11.. ...3 ...BUSHING, MACHINE 18 GA
539 110111 12.. ...1 ...FAN WELDMENT
539 106713 13.. ...1 ...SHEAVE
539 102067 14.. ...1 ...KEY ¼ SQ x ¾
539 106752 15.. ...1 ...FAN COVER WLDMT
539 106504 16.. ...1 ...HEAVY WASHER
539 111747 17.. ...1 ...PULLEY SHIELD, 72
539 110813 18.. ...1 ...RETAINER, "U" TYPE
539 111746 19.. ...1 ...BLOWER HOUSING
539 110103 20.. ...1 ...IDLER KEEPER
539 132923 21.. ...1 ...BELT, 52
539 132938 ...1 ....BELT, 60
539 990074 22.. .10 ...RHSNB ¼-20 x ¾ GR2
539 111229 23.. ...3 ...SCREW ¼-20 x 5/8 SKT HD
539 990316 24.. ...7 ...RHSNB 5/16-18 x ¾
539 990208 25.. ...1 ...RHSNB 5/16-18 x 1
539 100472 26.. ...3 ...RHSNB 5/16-18 x 1¼
539 101721 27.. ...1 ...HCS 5/16-18 x 2¾
539 100141 28.. ...1 ...HCS 7/16-20 x 1½
539 108120 29.. .12 ...NUT ¼-20 HEX THIN NYLOC
539 990184 30.. ...1 ...NUT 5/16-18 HEX CTRLK
539 990196 31.. ...3 ...NUT, 5/16-18 HEX
539 990585 32.. ...1 ...NUT 5/16-18 HEX WHIZLK
539 990717 33.. .12 ...NUT 5/16-18 HEX NYLOC
539 976979 34.. ...4 ...NUT 3/8-16 HEX NYLOC
539 990598 35.. .12 ...WASHER, ¼ STD FLT
539 990692 36.. ...2 ...WASHER, 5/16 STD FLT
539 990517 37.. ...1 ...WASHER, 5/16 STD FLT
539 132939 38.. ...1 ...SKID PLATE
539 990247 39.. ...1 ...WASHER, 7/16 SPLT LOCK
539 132911 40.. ...1 ...DECK PLATE, 52
539 132926 ...1 ....DECK PLATE, 60
539 106721 41.. ...1 ...IDLER
539 109345 42.. ...1 ...RHSNB, 3/8-16 x 1½
539 200282 43.. ...1 ...NUT, 3/8-16 HEX JAM NYLOC
539 990122 44.. ...1 ...WASHER, 3/8 SAE FLT
539 111218 45.. ...1 ...IDLER ARM
NOTE: ALL FASTENERS ARE GRADE 5 UNLESS OTHERWISE SPECIFIED.
15
Page 16
18
PARTS
2
2
14
12
11
3
7
3
8
4
6
10
9
1
5
13
16
16
17
15
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PARTS
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
539 132902 1.. ...1 ...BLOWER ASSEM 52
539 132903 ...1 ....BLOWER ASSEM 60
539 132957 2.. ...1 ...BELT SHIELD, UPPER 52
539 132962 ...1 ....BELT SHIELD, UPPER 60
539 132954 3.. ...1 ...BELT SHIELD, LOWER 52
539 132959 ...1 ....BELT SHIELD, LOWER 60
539 132924 4.. ...1 ...BRACKET, MOUNTING 52
539 132931 ..1 ...BRACKET, MOUNTING 60
539 990209 5.. ...2 ...HCS 5/16-18 x 1
539 990717 6.. ...2 ...NUT 5/16-18 HEX NYLOC
0387 7.. ..............1 ...CLEVIS PIN
539 915067 8.. ...1 ...HAIR PIN
539 132922 9.. ...1 ...PULLEY, 52
539 132937 ..1 ...PULLEY, 60
539 132996 10.. ...1 ...SPACER, PULLEY
539 117912 11.. ...1 ...SPINDLE SHAFT
539 116196 12.. ...1 ...KEY, OUTER SHAFT
539 115636 13.. ...1 ...WASHER, ½ x 13/8 x ¼
539 133070 14.. ...1 ...HCS ½-20 x 2½
539 111287 15.. ...1 ...DISCHARGE HOSE
539 109901 16.. ...1 ...BAND, OVER CENTER
97076 17.. ............1 ...HOSE CLAMP
539 990997 18.. ...4 ...WINGNUT
NOTE: ALL FASTENERS ARE GRADE 5 UNLESS OTHERWISE SPECIFIED.
17
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P/N 539 132905 IR 01/28/08
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