Weaver 893-IT User Manual

890IT-Series Wheel Clamp TIRE CHANGER

INSTRUCTION MANUAL

READ THIS ENTIRE MANUAL

BEFORE OPERATION BEGINS

Model 893-IT 20”turntable with internal clamping range 12"-23", external

clamping range 10"-20"

Model 898-IT 24”turntable internal clamping range 15"-28", external

clamping range 13"-24"

For servicing single piece automotive and most light truck tire/wheel assemblies

Safety Instructions

Operating Instructions

Installation Instructions

Maintenance Instructions

READ these instructions before placing unit in
service. KEEP these and other materials delivered
with the unit in a binder near the machine for
easeof reference bysupervisorsand operators.

RECORD THE FOLLOWING INFORMATION WHICH IS LOCATED ON THE
SERIAL NUMBER DATA PLATE.

Serial Number: _________ Model：
Factory Code：

Technical Standard Code Q/YGM001--2006

This product has passed the examination.

Operators Protective Gear and Equipment

Personal protective equipment helps make tire changing safer. However, equipment does not take the place of
safe operating practices. Always wear durable work clothing during tire service activity. Shop aprons or shop
coats may also be worn, however loose fitting clothing should be avoided. Tight fitting leather gloves are
recommended to protect operator’s hands when handling worn tires and wheels. Sturdyleather work shoeswith
steel toes and oil resistant soles should be used by tire service personnel to help prevent injury in typical shop
activities.Eyeprotectionis essential duringtire service activity. Safety glasses with side shields, goggles,or
faceshields areacceptable.Back belts provide supportduringliftingactivitiesand are also helpful in providing
operator protection. Considerationshould alsobegiven to the use of hearing protection if tire service activity
is performed inanenclosedarea, orifnoiselevels are high.

WARNING

Failure to follow danger, warning, and caution instructions may lead to serious personal
injury or death to operator or bystanderor damage toproperty. Donot operate this machine
untilyoureadand understandallthedangers,warnings and cautions in this manual.

For additionaltire,wheel, and/orinflationinformationcontact the following:
RUBBER MANUFACTURERSASSOCIATION

1400 K Street N.W.
Washington, DC 20005
[phone]www.rma.com

TIRE GUIDES, INC.
The Tire Information Center 1101-6 South Rogers Circle Boca Raton, FL 33487-2795
[phone]

www.tireguides.com

Owner’s Responsibility

Tomaintainmachineandusersafety,the responsibility of the owner is to readand follow these
instructions:

 Follow all installation instructions.
 Make sure installation conforms to all applicable Local, State, and Federal Codes,Rules,

and Regulations; such as StateandFederalOSHARegulationsandElectrical Codes.

 Carefully check the unit for correct initial function.
 Readandfollow the safetyinstructions.Keepthemreadilyavailableformachineoperators.

 Make certain all operators are properly trained,know howto safely andcorrectly operate the

unit, and are properly supervised.

 Allow unit operationonly with all parts in place and operating safely.
 Carefully inspect the unit on a regular basis and perform all maintenance as required.

 Serviceandmaintaintheunitonlywithauthorized or approved replacement parts.

Keepallinstructionspermanentlywiththeunit andalldecalsonthe unit clean andvisible.

This tire changer comes with a very detailed and easy to understand instruction manual. This
manual assumes that the customer has used a wheel clamp style tire changer previously, or has
operators that have operated a wheel clamp style tire changer. If this is your first tire changer
purchase and you have not operated a wheel clamp style tire changer, it is strongly
recommended to have a person/trainer who is familiar with this style of tire changer train you in
the operation. This tire changer is very similar to many other tire changers on the market. The
distributor that sold this unit will be glad to give you a training session at their location or guide
you to someone who can provide a service call to your location for training (a service charge
would apply). The distributor also offers telephone technical support and trouble-shooting
suggestions as needed. This does not take away from the responsibility you have to read and
understand this complete manual.

This responsibility is no different than when you purchase an automobile. The automobile dealer
assumes you know how to operate and drive a motor vehicle. Safe operation is your
responsibility and the dealer assumes you know how. Seek training as needed.

DANGER

EXPLOSION HAZARD – NEVER EXCEED40 PSI WHILE SEATING
BEADS

Explosion Hazard Never inflate tire above manufacturer’s
recommended pressure after bead is seated.

SAFTTY LABEL INSTRUCTION

.

Keep your hands far Carefully read operation When operation , wear
from tire when operation manual before operation the protective gear

electrical shock hazard！

Do not reach any part of your
body under the demount tool. When operating, do not

When rapid inflation,

ensure the wheel
clamped.

wear long hair, loose
clothing or jewelry

When breaking bead, the bead breaking

blade will quickly move leftwards. When operating, do not

SAFETY LABE Note: when pressing the tire, the

opened clamp cylinder may
injure the hand of the operator.
Remember, do not touch the side
wall of the tire.

When clamping the rim, do not
Reach your hand or other parts
Of the body in between the clamp

& the rim.

reach your hand under the
falling objects.

Do not stand behind the column to

Avoid injuring the persons when swinging arm

SAFETY LABEL POSITION DIAGRAM

Pay attention to keep the safety labels clean and readable at all times. Replace any label that is not clear, torn or
missing.

Operators review the safety labels clearly and understand the meaning of each label.

CONTENT

CHAPTER Ⅰ BRIEF INTRODUCTION

1.1 BRIEF INTRODUCTION

1.2 EQUIPMENT OVERALL DIMENSION (EXCLUDING THE ASSSISTANT)

1.3 TECHNICAL PARAMETER

1.4 APPLICATION SCOPE

1.5 ENVIRONMENT REQUIREMENT

CHAPTER Ⅱ CONFIGERATION AND OPERATION

CHAPTER Ⅲ INSTALLATION AND CALIBRATION

3.1 OPEN PACKAGE CARTON

3.2 INSTALLATION OF THE COLUMN

3.3 AIR SOURCE INSTALLATION

CHAPTER Ⅳ DEMOUNT AND MOUNT TIRE

4.1 DEMOUNT TIRE

4.2 MOUNT TIRE

4.3 INFLATION

4.4 RAPID INFLATION

CHAPTER Ⅳ MAINTANENCE AND REPAIR

CHAPTERVI INSTALLATION & OPERATION OF THE ASSISTANT ARM

6.1 LEFT ASSISTANT INSTALLATION

6.2 RIGHT ASSISTANT INSTALLATION

CHAPTER ⅣTRANSPORTATION

CHAPTER Ⅳ ELECTCTRICAL AND PENUMATIC DRAWING

CHAPTER IX GENERAL TROUBLESHOOTING AND SOLUTION

CHAPTER Ⅰ BRIEF INTRODUCTION

1.1 BRIEF INTRODUCTION
This series of equipment is the tire changer with fixed column and rocker arm tire changer. It is suitable to mount,

demount and inflate all types of automotive and most light truck tire/wheel assemblies. When used properly, the
operation is convenient, safe and reliable.

This series of machine can be divided into 4models. They are LC890, LC850, LC800（cylindrical column）and LC112
（square column）The corresponding models with the quick inflation function are:GT890,GT850,GT800（cylindrical
column）. Among them LC890 and GT890 and be equipped with the assistant to adapt to demount and mount the low
profile and stiff tires.

1.2 EQUIPMENT OVERALL DIMENSION (EXCLUDING THE ASSSISTANT)
model

LC(GT) 890 2040 1135 870 223/233
LC(GT) 850 1820 985 780 200/210
LC(GT) 800 1858 975 895 210/220
LC112 1815 965 795 190

1.3 TECHNICAL PARAMETER

Operation pressure：8-10bar
motor：50Hz 380V 0.75Kw (standard) 50Hz/60Hz 220V/110V 1.1Kw(optional)
turntable speed：6rpm
noise：＜70dB（A）

height（mm） length（mm） width（mm）

Net weight kg

1.4 APPLICATION SCOPE

model Max. wheel diameter Max. wheel width
LC890（GT）
LC850（GT）

LC800 960mm(37″) 305mm(12″)
GT800 960mm(37″) 305mm(12″)
LC112 960mm(37″) 305mm(12″)

（LC800 has adopted the enlargement of the movement base and clamp diameter for demount and mount the
motorcycle tire.

1.5 ENVIRONMENT REQUIREMENT
ambient temperature 0℃～45℃
relative humidity 30～95%
Sea level max.1000M
Without dust and flammable and explosive gas
The minimum operation space around the machine is indicated in FIG 1.

If installed outdoors, you must provide shelter to
protect from the weather. It is forbidden to use in the site
with the flammable gas！

1250mm(49″) 400mm(16″)
960mm(37″) 305mm(12″)

rim diameter（outer clamp） rim diameter（innerclamp）

10″～20″ 12″～23″
10″～18″ 12″～21″
8″～20″ 10″～22″
10″～20″ 12″～23″
10″～18″ 12″～21″

Fig 1

CHAPTER Ⅱ CONFIGERATION AND OPERATION

Know Your Unit - Compare thisillustration with the unit beforeplacing it into service. Maximum performance

and safety will be obtained only when allpersons using theunit arefully trained in its parts and operation. Each
usershouldlearn thefunctionandlocationofall controls.Prevent accidents and injuries by ensuring the unit is
properly installed, operated, and maintained.

图 2 图 3

FIG 2

1 vertical shaft spring 2 rocker valve 3 hexagon shaft 4 demount head
5 claw 6 turntable 7 operation label 8 turntable pedal
9 clamp pedal 10 tire press pedal 11 limit handle 12 lock handlel
13 column 14 inflation gun 15 clamp cylinder 16 blade handle
17 air source fitting 18 bead breaking cylinder 19 tire press arm 20 bead breaking blade
21 crowbar 22 air tank 23 inflation gauge box

CHAPTER Ⅲ INSTALLATION AND CALIBRATION

Before installation, carefully read this manual. The unauthorized change on the parts and spare parts of the machine
will cause damage to the machine. Installation personnel should have the specific electrical knowledge. Operators
must be trained and authorized. Before installation, carefully read the equipment list. If any question, please contact
our company.
To ensure the success of the installation, please prepare the following common tools: Two wrenches（10″）, one
socket wrenches, one hexangular wrench, one tung and one screw driver. One hammer and one multi-purpose
meter.

3.1 DEPACKAGE

3.1.1 According to the de-package instruction on the package box, detach the box and remove the package
material. Check to see if the machine has damage or not and if the spare parts are completed.

FIG 3

3.1.2 Keep the package material far away from the working site and remove it properly.

3.2 INSTALLATION

3.2.1 After un-packaging the package carton, take out accessory boxes（FIG 4-1）,bead breaking arm（FIG 4-5）
and column assembly（FIG 4-2）. Position the body according to the FIG1.4. Remove the bolt（FIG 4-4）, elastic washer
and plate washer on the body.

FIG 4 FIG 5

3.2.2 Place the column on the body. The direction of the warning label is forwards. Make the holes on the column

base plate align to thread holes on the body. Once again assemble the removed the bolt（3.2.1）, elastic washer
and plate washer and plate washer removed in 3.2.1 The torque is 70 N·M（FIG5）Use torsion wrench to tight.

3.2.3 Use the wrench to remove the screw（FIG 6-3）hexangular shaft（FIG6-1）and take off the vertical shaft cap

(FIG 6-2）． When removing the screw on the vertical shaft cap, you need to use the lock handle to lock the
hexangular shaft to avoid sliding off to avoid damage to the machine or injury to personnel!

Install the vertical shaft spring（FIG7-1）on the vertical shaft. Mount the vertical shaft cap and mount the removed
screw and assemble the hand wheel into the nut bushing of the rocker arm（FIG 7-2）。

3.2.4 Remove the lock nut at the front end of the bead breaking cylinder piston rod（FIG 8-1）and use the wrench to

remove the nut on the bead breaking arm bolt（FIG8-4） Removethe bolt（FIG8-3）and hang the spring（FIG8-2）

FIG 6

FIG 7 FIG 8

3.2.5 Position the bead breaking arm shaft bushing into the bead breaking support plate on the body（FIG 9-1）to
align the hole and install the bead breaking bolt（FIG 9-2）and assemble the nut to lock（FIG 8-4）. Insert the piston
rod（FIG10-2）through the hole of the bead breaking slide bushing(FIG10-1）. The surface of the slide bushing should
be outwards（FIG 10）. Assemble the removed nut（FIG 8-1）into the front end of the piston rod. The nut will be
assembled. The distance from the edge of the bead breaking blade to the bead breaking rubber is 30～40mm
（FIG11）. Hang the spring.（FIG9-3）。

FIG 9 FIG 10

Note：If the machine is the one with the quick inflation, please open the side panel and insert 2 pieces of Ø12pu hose
at the inlet of the quick deflation valve into the 2 Ø12nozzle and then install the side panel.

3.2.6 If being equipped with the tool box, you must fix firmly and the column completely installed.

3.3 AIR SOURCE FITTING INSTALLATION：
When the machine leaves the factory, the air source fitting has been detached and placed in the accessory box.

3.3.1 Take out the air source fitting from the accessory box and the screw and remove the oil and dust. Use the
screw to fix it on the right side of the body（fig12）。

FIG 11 FIG 12