Troy-Bilt TOMAHAWK 15013, TOMAHAWK 15014, TOMAHAWK 15014S, TOMAHAWK 15015, TOMAHAWK 15016 Technical Manual

.

"

o

J:.IlQ~BILT

Technical

Manual

TOMAHAWK

®

Chipper/Shredder

4HP,

5HP&8HP

Models

GARDEN WAY INC.

DRIVE SHAFT/CYLINDER

ASSEMBLY

REPLACEMENTINSTRUCTIONS

& OTHER SERVICE PROCEDURES

AND

INSPECTIONS

TROY-BILT®

5HP&8HP

SUPER TOMAHAWK®

Chipper/Shredder

Models 15012, 15013, 15014, 150

14S,

15015,

15016

& 47251

TROY-BILT®

4HP

TOMAHAWK®

Chipper/Shredder

Models

15017,15018,15028,

15028S, 15029

TOOL LIST- Have all tools below ready at hand and enlist

the aid of a helper too, as a second person will make some
steps easier.

Combo Open End/Box End Wrenches: two

7/16";

two

112";

one

9/

16

" •

VB"

and %2" Hex Key (Allen) Wrenches • 9/

16

" Socket

Wrench with 6" Extension • Soft-Head Mallet (rubber

or
plastic) • 12" Long Drift Pin or Punch • Regular Pliers • 6­Foot Length

of

ClotheslineorStrong Twine (capable of

supporting at least 40 pounds) • Flatblade

Screwdriver·
Penetrating Oil • Flashlight • Emery Cloth • 5-Foot (approx)
Long Broom Handle orLength ofPipe • Masking Tape • Rub­ber Bands (two), 3"

long·

Three-Foot Long 2"x4"

Wood·

Rags • Thick Gloves

DISASSEMBLY STEPS

AWARNING

Moving

partsonyour

equipment

can

cause

seri-

ous

personal

injury.

To

help

avoid

injury,

shut

off

the

engine,

let

all

mov-

ing

parts

stop

completely,

and

disconnect

the

spark

plug

wire

before

performing

any service procedures.

STEP 1.

Stop the engine and wait for the engine and mufflertocool
before proceeding.

STEP 2.

Remove the spark plug boot from the spark plug and secure
the boot safely away from the spark plug.

STEP 3.

Remove the battery on electric startmodels:
A. Remove the key from the ignition switch.
B. Using two

112"

wrenches, remove the Whiz locknut that

secures the negative

(-)

battery cable to the left-side axle
support bracket (see Fig. 1). Slide the cable off and bend it
safely away from any metal parts. Replace the nut on the
screw forsafekeeping.

C.

Using the

7/

16

" wrenches, disconnectthe positive (+)cable

from the positive battery post (see Fig. 1). Cover the end of
the cable with the rubber boot and replace the nut on the
battery bolt.

D.

Remove the battery hold-down clamp by using a

7/

16

" wrench

to

remove the two locknuts that secure the clamp to the

battery platform. See Fig.

1.

Keep the nuts with the clamp.

E.

Remove the battery and store itina safeplace.

Fig.

1

2

AOANGER

Improper

handlingofthe

battery

can

resultinelec-

trical

burns,anelectric

shock,oran

explosion

of

battery

gases.Tohelp

avoid

injury:

• Keep

sparks

and

flames

away

from

the

battery.

• Do

not

touch

either

battery

post

simultaneously

with

any

tools,

jewelry,ormetal

objects.

STEP 4.

Using two

7/

16

" wrenches, remove the two screws and Whiz

locknuts that secure the belt guard to the engine mounting
plate (see Fig.

2).

Save the screws and nuts with the belt

guard.

STEPS.

Place the Clutch Leverinthe UP (Disengage) position (see
Fig. 3). Then remove the drive belt from the cylinder shaft
(lower) pulley

by

rotating the pulley with one hand while "rid­ing" the belt off the pulley with your otherhand. Finally, lift the
belt up and off the engine (upper) pulley.

Fig.

3

ACAUTION

STEP8.

Remove the cylinder driveshaft pulley (lower pulley):

Ag.6

IMPORTANT:
Exercise care at all times when attempting to remove the
pulley. The pulley is made of cast-iron and it could crack if
excessive or sudden force is applied to it with either a mallet

or a prying tool.

A. On the engine side of the cylinder shaft, rotate the lower
pulley until the two set screws

in

its shoulder are visible (see

Fig. 6). Using a

%2" hex key (Allen) wrench, remove the two

set screws.

B. Spray penetrating oil liberally into the two set screw holes.
Next spray the cylinder shaft

on

both sides of the pulley.

Allow theoil to soak

in

for several minutes.

C. Using a soft-head mallet, tap the pulley inward (toward
the main frame) until it loosenson theshaft.

~void

striking the
more fragile, outer edges of the pulley with the mallet. After
loosening the pulley, add more penetrating oil to the newly
exposed portion ofthe cylinder shaft.

D.

Slide the pulley outward and off the shaft using two flat
blade screwdrivers as levers behind the pulley to pry it off.
Use even pressure around the pulley to avoid cocking it on
the shaft. Save the pulley and its two set screws (removed

in

Step 8A) for reuse.

NOTE: On some machines, the location of the engine
mounting plate may prevent the pulley from being
removed from the cylinder shaft. If so, leave the pulley

on

the shaft and proceed to Step9.The pulley will be

removed later,

in

Step

17.

E.

Using pliers, remove the 1W'long rectangular key from

the keyway

in

the shaft (unless key remains inside the key-

way ofthe pulley). See Fig.

6.

If necessary, tap the key with a

mallet and apunch to help loosen

it.

Save the key for reuse.

F.

Wipe the shaft clean and remove any rust or burrs with

an
emery cloth. This step is critical as any rust or burrs could
prevent the shaft from being removed in the steps thatfollow.
Finally, thoroughly lubricate the shaft with penetrating oil.

STEP 9.

On the engine side of the cylinder shaft, loosen the set screw
in

the bearing locking collarusing a

1/a"

hex key (Allen) wrench.

see

Fig.7.If necessary, hold the bearing locking collar

C!.t

the
other end of the cylinder shaft to prevent the collar from
turning while loosening the set

screw.

If the pulley wasremoved

in

Step8,then remove and save the collar and the set'screw
(unless they are being replaced with new parts). If the pulley
was notremoved, leave thecollar

in

place until Step 17.

1

~irPin

and

Rod

Locking

Front

•01Service

Door

?

ofO.

Next,

Remove

2.

Hairpins

and

Rods

at

Front

and

Rear

0'

Screen

Fig. 4

STEP 7.

Remove the chipper chute using a

112"

wrench to remove the

four cap screws and lockwashers that secure it (see Fig. 5).

While

the

chipper

chuteisremoved,donot

place

your

hands

inside

the

chipper

blade

access

opening.

The

chipper

blade

thatislocated

inside

the

open-

ing

(on

the

chipper

flyWheel)isextremely

sharp

and

can

cause

personal

injury.

STEP 6.

Remove the shredder discharge screen by sliding out the

rod
that secures the service door, lifting the service door, and
then by taking out the two hair pin cotters and long rods that
secure the screen

in

place (see Fig. 4). Next, take off the
discharge tunnel at the bottom of the equipment (Fig. 4A).
Remove three screws

on

each side of the mainframe and the

tunnel is disconnected.

3