WACKER Group CT 30 Series Operating instructions

www.wackergroup.com
Walk-Behind
Trowels
CT 30
CT 36
CT 48
REPAIR MANUAL
0112103 001
0600 en
0112103

TROWEL REPAIR FOREWORD
Operating / Parts Information
You must be familiar with the operation of this machine before you attempt to troubleshoot or make any repairs to it.
Basicoperating and maintenance procedures are described intheoperator’s/parts manual supplied with the machine.
The operator’s / parts manual should be kept with the machine. Use it to order replacement parts when needed. If this
manual becomes lost, please contact WACKER Corporation to order a replacement.
Damage caused by misuse or neglect of the unit should be brought to the attention of the operator, to prevent similar
occurrences from happening in the future.
This manual provides information and procedures to safely repair and maintain this WACKER model. For your own
safety and protection from injury, carefully read, understand and observe the safety instructions described in this
manual. THE INFORMATION CONTAINED IN THIS MANUAL WAS BASED ON MACHINES IN PRODUCTION AT
THE TIME OF PUBLICATION. WACKER CORPORATION RESERVES THE RIGHT TO CHANGE ANY PORTION
OF THIS INFORMATION WITHOUT NOTICE.
This manual covers machines with Serial Number or Item Number:
0007587, 0007589, 0007590, 0007591, 0007592, 0007594, 0007595, 0007596, 0007597, 0007598, 0007599, 0007601,
0007602, 0007603, 0007697, 0008001, 0008002, 0008003, 0008004, 0008005, 0008006, 0008007, 0008008, 0008011,
0008012, 0008013, 0008014, 0008015, 0008016, 0008019, 0008020, 0008026, 0008027, 0008028, 0008031, 0008032,
0008034, 0008036, 0008040, 0008041, 0008197, 0008198, 0008199, 0008225, 0008226
i

TROWEL REPAIR
PATENT PENDING
111545
FOREWORD
1022SD42
Serial Number
My machine’s numbers are:
RevisionItem Number
Model number
Rev. Serial Number
MENOMONEE FALLS, WI USA 53051
hpkWlbs
dB(A) Manuf. Yr.
Model
kg
MADE
IN USA
Item Number
88223
CT48AGT-ECT48AGT-E
CT48AGT-ECT48AGT-E
CT48AGT-E
00080320008032
00080320008032
0008032 101101
101101
101 0001010100010101
0001010100010101
00010101
®
Pro-Shift
Nameplate
A nameplate listing the Model Number and Serial Number OR the Model Number, Item Number, Revision, and Serial
Number is attached to each unit. Please record the information found on this plate so it will be available should the
nameplate become lost or damaged. When ordering parts or requesting service information, you will always be
asked to specify the model number and serial number OR the model number, item number, revision, and serial
number of the unit.
ii

Trowel
Repair Manual
1 Introduction
1.1 Safety Notes ................................................................................................ 1-2
1.2 Laws Pertaining to Spark Arresters .............................................................. 1-2
1.3 Operating Safety .......................................................................................... 1-3
1.4 Engine Safety............................................................................................... 1-3
1.5 Service Safety ............................................................................................. 1-4
1.6 Technical Data ............................................................................................. 1-5
1.7 Application ................................................................................................... 1-6
1.8 GeneralDescription ...................................................................................... 1-6
1.9 Periodic MaintenanceSchedule ................................................................... 1-6
1.10 Symbols ....................................................................................................... 1-6
2 Guide Handle
2.1 Throttle Control Lever Adjustment ................................................................ 2-1
2.2 Throttle CableReplacement ......................................................................... 2-1
2.3 Upper Handle - Twist Pitch Control - Exploded View ..................................... 2-2
2.4 Twist Pitch Control Cable Replacement ........................................................ 2-4
2.5 Upper Handle - Pro-Shift
®
- Exploded View ................................................... 2-6
2.6 Pro-Shift
®
Pitch Control Cable Replacement .................................................2-8
3 Clutch
3.1 Belt Replacement ......................................................................................... 3-1
3.2 Belt Drive - Exploded View ........................................................................... 3-2
3.3 ClutchReplacement ..................................................................................... 3-3
3.4 Clutch - Exploded View ................................................................................ 3-4
3.5 Clutch Overhaul............................................................................................ 3-5
4 Spider
4.1 Trowel Assembly - Exploded View ............................................................... 4-1
4.2 Spider........................................................................................................... 4-2
5 Drivetrain
5.1 Engine Removal - Exploded View ................................................................. 5-1
5.2 Engine .......................................................................................................... 5-2
5.3 Gearcase Removal - Exploded View............................................................. 5-3
5.4 Gearcase ..................................................................................................... 5-4
5.5 Gearbox - Exploded View ............................................................................. 5-6
5.6 GearcaseOverhaul ...................................................................................... 5-7
Troubleshooting
Table of Contents
1-1

1-2
1INTRODUCTION TROWEL REPAIR
1.1 SafetyNotes
This manual contains NOTES, CAUTIONS, and WARNINGS which must be followed to reduce the possibility of
improperservice, damagetothe equipment,orpersonalinjury.Read andfollowall NOTES,CAUTIONSand WARNINGS
included in instructions.
Note:
Containsadditional
information important to a procedure.
CAUTION:Provides information important to prevent
errors which could damage machine or components.
WARNING
Warns of conditions or practices which
could lead to personal injury or death!
1.2 Laws Pertaining to Spark Arresters
Notice: Some states require that in certain locations, spark arresters be used on internal combustion engines. A spark
arrester is a device designed to prevent the discharge of sparks or flames from the engine exhaust. It is often required
when operating equipment on forested land to reduce the risk of fires. Consult the engine distributor or local authorities
and make sure you comply with regulations regarding spark arresters.

TROWEL REPAIR INTRODUCTION 1
1-3
1.3 OperatingSafety
Familiarity and proper training are required for the safe operation of this equipment! Equipment operated improperly or
byuntrainedpersonnelcanbe dangerous! Read the operating instructions contained in both the operator'smanualand
the engine manual and familiarize yourself with the location and proper use of all controls.
DO NOT smoke while operating machine.
DO NOT smoke when refueling engine.
DO NOT refuel hot or running engine.
DO NOT refuel engine near open flame.
DO NOT spill fuel when refueling engine.
DO NOT run engine near open flames.
DO NOT run machine indoors or in an enclosed
area such as a deep trench unless adequate
ventilation, through such items as exhaust fans or
hoses, is provided. Exhaust gas from the engine
contains poisonous carbon monoxide gas; expo-
sure to carbon monoxide can cause loss of con-
sciousness and may lead to death.
ALWAYS refill fuel tank in well-ventilated area.
ALWAYS replace fuel tank cap after refueling.
NEVER allow anyone to operate this equipment
withoutproper training.Peopleoperating thisequip-
ment must be familiar with the risks and hazards
associated with it.
NEVER touch engine or muffler while the engine is
onor immediately afterithas beenturnedoff.These
areas get hot and may cause burns.
NEVERuseaccessoriesorattachmentswhichare
notrecommendedby WACKER. Damagetoequip-
ment and injury to the user may result.
NEVER operate machine with the belt guard miss-
ing. Exposed drive belt and pulleys create poten-
tially dangerous hazards that can cause serious
injuries.
NEVER leave machine running unattended.
1.4 EngineSafety
Internalcombustionengines present special hazardsduringoperationandfueling! Read and followwarninginstructions
in engine owner's manual and safety guidelines below. Failure to follow warnings and safety guidelines could result in
severe injury or death.
WARNING
ALWAYS be sure operator is familiar with proper
safety precautions and operation techniques be-
fore using machine.
ALWAYSwearprotectiveclothingwhen operating
equipment.Forinstance,gogglesorsafetyglasses
will protect eyes from damage caused by flying
debris.
ALWAYS close fuel valve on engines equipped
with one when machine is not being operated.
ALWAYS store equipment properly when it is not
being used. Equipment should be stored in a
clean, dry location out of the reach of children.
ALWAYSoperatemachinewith all safety devices
and guards in place and in working order.
WARNING

1-4
1INTRODUCTION TROWEL REPAIR
1.5 ServiceSafety
Poorlymaintainedequipment can becomeasafetyhazard! Inorderfortheequipment to operatesafelyandproperly over
a long period of time, periodic maintenance and occasional repairs are necessary.
WARNING
DO NOT attempt to clean or service machine
while it is running. Rotating parts can cause
severe injury.
DO NOT crank a flooded engine with the spark
plugremoved on gasoline-poweredengines.Fuel
trappedinthe cylinderwillsquirtout the sparkplug
opening.
DO NOT test for spark on gasoline-powered en-
gines, if engine is flooded or the smell of gasoline
is present. A stray spark could ignite fumes.
DO NOT use gasoline or other types of fuels or
flammable solvents to clean parts, especially in
enclosed areas. Fumes from fuels and solvents
can become explosive.
ALWAYS keep area around muffler free of debris
such as leaves, paper, cartons, etc. A hot muffler
could ignite them, starting a fire.
ALWAYS replace worn or damaged components
with spare parts designed and recommended by
WACKER.
ALWAYS disconnect spark plug on machines
equippedwith gasolineengines,before servicing,to
avoid accidental start-up.
ALWAYS keep machine clean and labels legible.
Replaceallmissing and hard-to-readlabels.Labels
provideimportant operatinginstructionsand warnof
dangersandhazards.

TROWEL REPAIR INTRODUCTION 1
1-5
1.6 TechnicalData
CT 36ADT/ CT 48ADT/
CT 30ADT CT 30AGT CT36ADP CT 36AGT CT 48ADP CT 48AGT
30 (762) 30 (762) 36 (914) 36 (914) 48 (1220) 48 (1220)
60–100 125–165 60–100 125–165 60–100 125–165
Trowel
4
Mobil SHC634
Approx. 45 (1330)
0–15
TrowelDiameter in. (mm)
Number of Blades
GearboxLubrication type
oz. (ml)
SpeedRange rpm
Pitch Range degrees°

1-6
1INTRODUCTION TROWEL REPAIR
1.7 Application
The CT series of trowels are modern, high production
machinesintendedforfloating andfinishingfreshlypoured
concrete slabs. The machine’s good balance, adjustable
handle, and easily accessible controls add to operator
comfort and productivity. An automatic stop switch, or a
combination of an automatic stop switch and an operator
present lever, provide added operator safety. Finishing
rates will depend on operator skill and job conditions.
1.8 GeneralDescription
For the CT product line of trowels, engine power is
transferred through a centrifugal clutch and V-belt to the
gearcase and down to the trowel blades. The four trowel
bladesare mountedonaspider assemblymountedonthe
gearcase output shaft. The spider assembly adjusts the
trowel angle by being raised by the yoke-trowel blade lift.
The trowels can be tilted from 0°- 15 °. The speed
of the trowels ranges from 60-165 rpm, depending on
the model.
1.9 PeriodicMaintenanceSchedule
The chart below lists basic trowel maintenance. Refer to engine manufacturer’s Operator’s Manual for information on
engine maintenance. A copy of the engine Operator’s Manual was supplied with the machine when it was shipped.
Daily After After Every two Every Every two
before each first weeks or month or years or
starting use 5 hours 50 hrs. 100 hrs. 750 hrs.
Check and tighten external hardware. ●
Grease trowel arms. ●
Check and adjust drive belt. ●●
Grease adjusting yoke. ●
Changegearcaseoil. ●
Inspect pitch cable. ●
Changetrowelgearcaselubricant. ●
1.10 Symbols
Symbols Used on Repair Pages
L1 Indicates a sealant or threadlocking compound to
be used when assembling part.
[L1] Refer to Sealant Chart at end of manual for
description of sealants.
T1 Indicates the correct torque value for
assemblingpart.
[T1] Refer to Torque Chart at end of manual for
standardtorquemeasurements.