Av . Evandro Lins e Silv a, 840 - grupo 505T el. 011-55-21-3433-9055
Barra de Tijuca - Rio de J aneiroFax 011-55-21-3433-9055
RJ CEP 22631-470
Contact: cnavarro@multiquip.com.br , srentes@multiquip.com.br
1.Sound pressure is a weighted measure. Measured at the
operators ear position while the walk-behind trowel is
operating at full throttle on concrete in a manner most often
experienced in “
may vary depending upon the condition of the concrete.
Hearing protection is always recommended.
normal
” circumstances. Sound pressure
2.The vibration level indicated is the maximum RMS (Root
Mean Square) value obtained at the handle grip at full
throttle on dry concrete, using a QP Handle and manual
clutch with the blades slightly pitched. V alues were obtained
from all three axes of motion. The v alues shown represent
the maximum RMS value from these measurements.
This checklist will lists some of the minimum requirements for
machine maintenance and operation. Please feel free to detach
it and make copies. Use this checklist whenever a new operator
is to be trained or it can be used as a review for more experienced
operator’s.
Safety precautions should be followed at all times when operating
this equipment. Failure to read and understand and comply with
the Safety Messages and Operating Instructions could result in
injury to yourself and others.
This Owner's Manual has been
developed to provide complete
instructions for the safe and
NOTE
Before using this WALK-BEHIND TROWEL, ensure that the
operating individual has read and understands all
instructions in this manual.
efficient operation of the MQ
Whiteman BA SERIES TRO WEL.
For engine maintenance
information, please refer to the
engine manufacturers
instructions for data relative to its
safe operation.
HAZARD SYMBOLS
SAFETY MESSAGE ALERT SYMBOLS
The three (3) Safety Messages shown below will inform you
about potential hazards that could injure you or others. The
Safety Messages specifically address the level of exposure to
the operator , and are preceded by one of three words: DANGER,
WARNING, or CAUTION.
Lethal Exhaust Gases
Engine exhaust gases contain poisonous
carbon monoxide. This gas is colorless and
odorless, and can cause death if inhaled.
NEVER operate this equipment in a confined
area or enclosed structure that does not
provide ample free flow air.
Explosive Fuel
Gasoline is extremely flammable, and its
vapors can cause an explosion if ignited. DONOT start the engine near spilled fuel or
combustible fluids. DO NOT fill the fuel tank
while the engine is running or hot. DO NOT
overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or
sparks from the ignition system. Store fuel in
approved containers, in well-ventilated areas
and away from sparks and flames. NEVER
use fuel as a cleaning agent.
Burn Hazards
DANGERDANGER
DANGER
DANGERDANGER
You WILL be
if you DO NOT follow these directions.
WARNINGWARNING
WARNING
WARNINGWARNING
You CAN be KILLED or
you DO NOT follow these directions.
CAUTICAUTI
CAUTION
CAUTICAUTI
You CAN be
these directions.
Potential hazards associated with BA SERIES TROWEL
operation will be referenced with Hazard Symbols which appear
throughout this manual, and will be referenced in conjunction
with Safety Message Alert Symbols.
KILLED
INJURED
if you DO NOT f ollo w
or
SERIOUSLY INJURED
SERIOUSLY INJURED
if
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
while the engine is running or immediately after
operations. NEVER operate the engine with
heat shields or heat guards removed.
Failure to f ollow instructions in this manual may lead to serious
injury or even death! This equipment is to be operated by
trained and qualified personnel only! This equipment is f or
industrial use only .
■
NEVER operate this equipment when not feeling well due to
fatigue, illness or taking medicine.
■
NEVER operate the trowel under the influence or drugs or
alcohol.
■
Replace nameplate, operation and safety decals when they
become difficult to read.
■
ALWAYS check the trowel for loosened hardware such as
nuts and bolts before starting.
The following safety guidelines should always be used when
operating the BA Series.
SAFETY
■
DO NOT operate or service this equipment
before reading this entire manual. The
manual must be kept available and accessible
to the operator.
■
This equipment should not be operated by persons under the
minimum statutory age limit.
■
NEVER use this machine for any purpose other than those
described in this manual.
■
NEVER operate the trowel without proper protective clothing,
shatterproof glasses, steel-toed boots and other protective
devices required for the job.
■
NEVER touch the hot exhaust manifold, muffler
or cylinder. Allow these par ts to cool before
servicing the trowel.
■
High Temperatures – Allow the engine to cool before adding
fuel or performing service and maintenance functions. Contact
hot!
with
engine gives off
■
ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.
components can cause serious burns.
DEADLY
■
trowel requires an adequate
free flow of cooling air.
NEVER operate the trowel
in any enclosed or narrow
area where free flow of the
air is restricted. If the air flow
is restricted it will cause
serious damage to the
engine and may cause injury
to people. Remember the
carbon monoxide gas.
The engine of this
■
ALWAYS use extreme caution when working with flammable
liquids. When refueling, STOP the engine and allow it to cool.
■
NEVER operate the trowel in an
■
NEVER use accessories or attachments which are not
recommended by Multiquip for this equipment. Damage to
the equipment and/or injury to user may result.
■
Manufacturer does not assume responsibility for any accident
due to equipment modifications. Unauthorized equipment
modification will void all warranties. Any modification which
could lead to a change in the original characteristics of the
machine should be made only by the manufacturer who shall
confirm that the machine is in conformity with appropriate
safety regulations.
explosive atmosphere where fumes are
present, or near combustible materials.
An explosion or fire could result in
severe
■
NEVER
Fire or explosion could result from
vapors
■
T opping-off to filler port is dangerous, as it tends to spill fuel.
■
NEVER use fuel as a cleaning agent.
bodily harm or even death.
smoke
, or if fuel is spilled on a
around or near the machine.
hot!
engine.
fuel
BA-SERIES TROWEL — RULES FOR SAFE OPERATION
■
NEVER Run engine without air filter. Severe engine damage
may occur. Service air filter frequently to prevent carburetor
malfunction.
■
NEVER place your
while starting or operating this equipment.
■
AVOID w earing jewelry or loose fitting clothing that may snag
on the controls or moving parts as this can cause a serious
injury.
■
ALWAYS keep clear of
operating the trowel.
■
Moving Parts – Shut down the engine before performing
service or maintenance functions. Contact with moving parts
can cause serious injury.
■
ALWAYS check to make sure that the operating area is clear
before starting the engine.
■
NEVER leave the machine
■
ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using trowel.
feet
or
rotating
hands
inside the guard rings
or
moving parts
unattended
while running.
while
■
■
Maintenance Safety
■
■
■
■
■
■
When placing the trowel inside a truck-bed for transport,
always tie-down the trowel.
ALWAYS use proper lifting techniques when moving the
trowel.
NEVER lubricate components or attempt service on a running
trowel.
ALWAYS allow the trowel a proper amount of time to cool
before servicing.
Keep the trowel in proper running condition.
Fix damage to the trowel immediately and always replace
broken parts.
Dispose of hazardous waste properly . Examples of potentially
hazardous waste are used motor oil, fuel and fuel filters.
DO NOT use food or plastic containers to dispose of
hazardous waste.
■
ALWAYS keep the work area well organized.
■
ALWAYS clear the work area of any debris, tools, etc. that
would constitute a hazard while the trowel is in operation.
WARNINGWARNING
WARNING
WARNINGWARNING
ALWAYS check to make sure that the
operating area is clear before starting the
engine.
■
No one other than the operator is to be in the working area
when the saw is in operation.
■
Always observe all applicable compulsory regulations
relev ant to environmental protection, especially , fuel storage,
the handling of hazardous substances, and the wearing of
protective clothing and equipment. Instruct the user as
necessary, or, as the user, request this information and
training.
■
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.
Emergencies
■
■
■
ALWAYS know the location of
the nearest
ALWAYS know the location of the
nearest and
In emergencies
nearest phone or
Also know the phone numbers of the nearest
ambulance, doctor
information is invaluable in the case of an
emergency and could keep a serious situation from
becoming a tragic one .
fire extinguisher
first aid kit
always
keep a phone on the job site
and
.
.
know the location of the
.
fire department
. This
Transporting
■
ALWAYS shutdown engine before tr ansporting.
■
Tighten fuel tank cap securely and close fuel cock to prevent
fuel from spilling.
■
Drain fuel when transporting trowel over long distances or
bad roads.
The BA-Series walk-behind trowel is equipped with a number of operation,saf ety, and maintenance decals. Should an y of these
decals become unreadable, replacements can be obtained from y ou r de aler .
P/N 11092
P/N 20936
E
R
C
N
O
C
FINISHER
B
O
I
S
E
,
I
P/N 1492
BELT DRIVE
GEAR DRIVE
CHECK
E
T
F
L
O
O
H
D
A
CLOCKWISE
GEAR DRIVE
O
R
A
S
U
CHECK
P/N: 13118
P/N 35137
P/N 1940
WARNING
To avoid injury,
you MUST read
and understand
operator’s manual
before using this
machine.
This machine to
be operated by
qualified
personnel only.
Ask for training
as needed.
P/N35137
I
C
U
K
Q
P
H
I
T
C
P/N 12405
P/N 2942 WHITE TEXT 13”
C
H
T
I
™
P
-
K
C
I
U
Q
BOISE, IDAHO USA
P
O
W
E
R
T
P/N 1848
L
E
W
O
R
U. S. PATENT
XXXXXXX
C
O
N
C
R
E
N
I
T
F
E
P/N 1758
WARNING!
INJURY COULD RESULT IF FINISHER IS LIFTED
WITHOUT PITCH HANDLE FIRMLY ENGAGE
P/N 20526
WARNING!
DO NOT OPERATE HANDLE UNTIL IT IS
SECURELY FASTENED TO POWER TROWEL
& INSTRUCTIONS HAVE BEEN READ
P/N 20527
H
A
N
D
L
E
R
E
H
S
I
P/N1499
PRELOAD TRIM INDICATOR
FINISH
J
COMBO
FINISH
P/N 1735
P/N 36099 (ISO Blue)
Engine exhaust and some of
itsconstituents, and somedust created
by power sanding, sawing, grinding,
drillingandother constructionactivities
contains chemicals known tothe State
of California to cause cancer, birth
defects and other reproductive harm.
Someexamples of thesechemicals are:
of work.To reduce your exposure to
these chemicals:work in aALWAYS
well ventilated area, and work with
approved safety equipment, such as
dust masksthat are specially designed
to filterout microscopic particles.
P/N 20525
DO NOT LIFT MACHINERY BY GUARD
RING. MAY CAUSE DAMAGE TO
GUARD RING SHOCK MOUNTS
USE LIFT HANDLES ONLY
COMBO
B
WARNING
ROTATING BLADE
HAZARD
Keep hands
and feet clear
of guard rings.
Stop engine
before servicing.
P/N 35168
Figure 2. BA-Series Trowel Decals
P/N35168
SERVICE DEPARTMENT
CAUTION
P/N: 1261
P/N: 21455
P/N 1736
MODEL
SERIAL NO.
CONTACT
HOT
LUBRICATION
LUBRICATION
COUNTER
CLOCKWISE
LIFTING POINTLIFTING POINT
LUBRICATION
LUBRICATION
P/N: 11246
ATTENTION
PUSH PITCH CONTROL TO
FULL FORWARD POSITION
BEFORE FOLDING HANDLE
Operate the BA Series Trowel, tools and components in
accordance with the manufacturer's instructions. Use of any
other tools for stated operation is considered contrary to
designated use. The risk of such use lies entirely with the user .
The manufacturer cannot be held liable for damages as a result
of misuse.
BA-Series Trowel Familiarization
This walk-behind trowel is designed for the
finishing
Take a walk around the trowel. Take notice of all the major
components (see Figure 2, page18) like the engine, blades,
quick pitch control, air cleaner , centrifugal stop switch, etc. Check
that there is always oil in the engine.
Read
be found throughout this manual and on the trowel. Keep all
safety information in good, readable condition. Operators should
be well trained on the operation and maintenance of the trowel.
Before using your trowel, test it on a flat watered down section of
finished concrete that is free of any debris and other objects.
of concrete slabs.
all the safety instructions carefully . Safety instructions will
floating
and
Spider
The vertical output shaft of the gearbox connects to a cast hub
called the
outward that are used for attachment of blades or other
accessories. Remember as the gearbox output shaft rotates so
does the spider assembly .
Blades
The blades of the trowel finish the concrete as they are rotated
around the surface. Blades are classified as
(203mm wide [8 in.]),
[8 in.] ), and finish (152 mm wide [6 in.]). This trow el comes
equipped with either
spaced in a radial pattern and attached to vertical rotating
shaft by means of a
Centrifugal Stop Switch
In the event of a trowel runaway condition (operator releases
the handle), a
depending on which trowel you have, will stop the engine
and bring the trowel to a halt.
spider
. The spider has either 3 or 4 arms that extend
float
(254 mm [10 in.]) or (203 mm wide
three
or four blades per rotor equally
spider assembly.
centrifugal stop switch
or
manual clutch
combination
This trial test run will increase your confidence in using the trowel
and at the same time it will familiarize you with the trowel’s
controls. In addition you will understand how the trowel handles
under actual conditions.
Engines
This trowel is available with a 5.97kW (8.0 HP) HONDA, 6.34
kW (8.5 HP) ROBIN, or a 5.97kW (8.0 HP) Briggs and Stratton
gasoline engine. Refer to the engine owner’s manual for
instructions regarding the operation and maintenance of your
engine. The engine manual is included with your trow el at the
time of shipment from Whiteman. Please contact your nearest
Multiquip Dealer for a replacement should the original manual
disappear.
Drive System
Po wer is transferred from the engine to the gearbo x input shaft
via a V-belt pulley drive system. The pulley engages using a
manual clutch. See Parts section of this manual.
Gearbox
The
gearbox
to the
rotational speed of the trowel and is equipped with two shafts
(input and output).
is located beneath the engine and transfers power
rotor
or
spider
assembly. The gearbox controls the
NEVER attempt to
the assistance of another person to help lift the trowel or use
a crane or lifting device to move the trowel.
Moving the BA-Series Walk-Behind Trowel
This walk-behind trowel is designed to be moved and handled
in sever al ways. The easiest way to lift the trow el is to use the
auxiliary lifting tube
page 24, Figure 21. When using the auxiliary tube, always use
two persons
Some models have a
chain can be attached to the lifting bale, allowing a forklift or
crane to lift the trowel up onto a slab of concrete. Use a lifting
device of adequate lifting capacity to lift the trowel.
Training
For proper training, please use the “TRAINING CHECKLIST”
located in the front of this manual (Page 8). This checklist will
provide an outline for an experienced operator to provide training
to a new operator
Figures 3 shows the location of the basic controls or components,
for the BA-Series trowel. Listed below is a brief explanation of
each control or component
1.Quick Pitch™ Control Handle – To adjust the pitch of
the blades, grasp the handle then squeeze and either move
the handle forward or backward to achieve the desired
blade pitch.
2.Handlebar Adjuster – Change the angle/height of the
handle bars by loosening star wheel, adjust handlebars to
desired location, tighten starwheel firmly to hold handlebars
in that position.
3.Hand Grip/Handle Bar – When operating the trowel, place
both hands on each grip to maneuver the trowel. Replace
hand grips when they become worn or damaged.
4.Throttle Control Grip – Controls the speed of the engine.
Rotate the hand grip away from the operator to increase
engine speed (high), toward the operator to decrease
engine speed (low).
5.Throttle – Controls engine speed when throttle control
grip is rotated.
6.Hand Grip/Handle Bar – When operating the trowel, place
both hands on each grip to maneuver the trowel. Replace
hand grips when they become worn or damaged.
15.Engine – This trowel uses Honda, Robin and Briggs and
Stratton type gasoline engines.
16.Trowel Arm –NEVER operate the trowel with a bent,
broken or out of adjustment trowel arm. If the blades show
uneven wear patterns or some blades wear out faster than
others, the trowel arm may need to be adjusted. Use the
trowel arm adjustment tool P/N 1817 to adjust the trowel
arms.
17.Blades – This tro wel is equipped with combination blades.
These blades are versatile and should take care of most
troweling needs. In addition float discs can be attached to
the trowel arms that will allow the trowel to float on "wet"
concrete.
18.V-Belt Cover – Remo ve this cov er to gain access to the V belt. NEVER operate the trowel with this cover removed.
20.Stabilizer Ring – Reduces trowel arm vibration. Helps
stabilize trowel arm.
7.Centrifugal Engine-Off Safety Switch – In the event the
operator loses control of the trowel, this switch will shutdown the engine.
8.Auxiliary Lifting Tube - Use this tube to lift the trowel onto
a slab. T ube is to be inserted into socket located in front of
the gearbox.
9.Weights – The trowel may be equipped with two 4.5 kg
(10 lb.) weights. The weights may be removed to reduce
the operating weight of the trowel.
10.Trowel Lifting Point – Insert the auxiliary lifting tube here.
See Figure 21.
11.Pitch Control (standard models) - Turn this "Star Wheel"
clockwise for increase blade pitch, and counter-clockwise
for decrease blade pitch.
12.Clutch Lever - Clutch engagement le ver . When this le ver
is engaged, the blades will begin to rotate. May be used
with either Quick Pitch™ or Standard handle.
13.Main Tube - When disassembling components inside the
tube ex ercise extreme CAUTION! Tube is spring-loaded,
sev ere injury could result if not disassembled correctly .
14.Guard Ring- NEVER! put hands or feet inside guard ring.
The engine (Figure 4) must be checked for proper lubrication and
filled with fuel prior to operation. Refer to the manufacturers engine
manual for instructions & details of operation and servicing. The
engine shown above is a HONDA engine, operation for other
types of engines may vary somewhat.
1.Fuel Filler Cap – Remove this cap to add unleaded
gasoline to the fuel tank. Make sure cap is tightened
securely. DO NOT ov er fill.
DANGER
Adding fuel to the tank should be done only
when the engine is stopped and has had an
opportunity to cool down. In the event of a fuel
spill, DO NOT attempt to start the engine until
the fuel residue has been completely wiped
up, and the area surrounding the engine is dry .
2.Throttle Lever – Used to adjust engine RPM speed (lever
SLOW
advanced forward
FAST
).
3.Engine ON/OFF Switch – ON position permits engine
starting, OFF position stops engine operations.
4.Recoil Starter (pull rope) – Manual-starting method. Pull
the starter grip until resistance is felt, then pull briskly and
smoothly.
, lever back toward operator
5.Fuel Valve Lever – OPEN to let fuel flow , CLOSE to stop
the flow of fuel.
6.Choke Lever – Used in the starting of a cold engine, or in
cold weather conditions. The choke enriches the fuel
mixture.
7.Air Cleaner – Prevents dirt and other debris from entering
the fuel system. Remove wing-nut on top of air filter
cannister to gain access to filter element.
NOTE
8.Spark Plug – Provides spark to the ignition system. Set
spark plug gap according to engine manufacturer's
instructions. Clean spark plug once a week.
9.Muffler – Used to reduce noise and emissions.
10.Fuel Tank – Holds unleaded gasoline. For additional
information refer to engine owner's manual.
11.Oil Drain Plug – Remove this plug to remove oil from the
engine's crankcase.
12.Dipstick/Oil Filler Cap – Remove this cap to determine if
the engine oil is low. Add oil through this filler port as
recommended in Table 3.
Operating the engine without an air
filter, with a damaged air filter, or a
filter in need of replacement will
allow dirt to enter the engine, causing
rapid engine wear .
Before the trowel can be put into operation there are some
components that must be installed before the trowel can be used.
This section provided general instructions on how to install those
components. Instruction sheet P/N 20485 provides further details
for the handle assembly.
Handle Tube Installation (All Models)
1.Install the
handle tube
to the gearbox as shown in (Figure 5).
The mounting hardware should be contained in the shipping
container.
Figure 5. Handle Tube Installation
2.On Quick-Pitch™ models, piv ot the
T-handle
back
(full pitch) (Figure 6). This will relax the spring inside the
handle tube. On either model, spread the handle bar ends
just enough to engage the teeth on the handle tube. Attach
the hand wheel assembly, position handlebar to desired
location, and tighten hand wheel firmly .
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
The Quick-Pitch™ handle is spring loaded, personal injury
or damage could result from improper handling or
installation. Be careful when installing this component.
Considerable force may be
NOTE
required when moving the QuickPitch™T-handle forward or
backward.
Figure 6. Handlebar Installation
Throttle Cable Installation (Honda and Robin Engines)
1.Set the
throttle
(Figure 7) to the idle position by rotating
the grip toward the operator and away from the engine.
Figure 7. Throttle
2.Feed the throttle cable through the cable housing. Make sure
the throttle indicator is on 25.4mm (1 in.).
3.Connect the throttle cable to the engine. (Figure 8),
and (Figure 9),
Robin
. There should be a piece of wire
Honda
installed on the trowel to show where to route the throttle
cable. When connecting the cable housing, make sure that
no more than
4.Tighten cable clamp screw and swiv el stop screw .
5.After the cable has been installed on the engine, adjust
and tighten operator position of the handle to lock the
throttle cable at the proper length.
6. Adjust cable tension by rotating the barrel adjuster . (Figure
1.Expose the pitch cable to maximum by adjusting the handle
pitch to the "no pitch" position. On the standard model turn
the pitch control counter-clockwise, (Figure 12). On the
Quick-Pitch™ model, pivot the pitch handle forward or no
pitch, (Figure 13).
BARREL ADJUSTER
Figure 10. Barrel Adjuster
7.These are general instructions. Installation of the throttle
cable may vary for different engine configurations. Please
look for more detailed instructions inside the box containing
the handle. These more detailed instructions should provide
adequate guidance for installing.
Handle Height Adjustment
RED WIRE
FROM
ENGINE
Figure 12. "No Pitch" Position (Standard)
If handle height adjustment is desired, a handle wedge kit can be
purchased for your trowel by ordering P/N 2576 from your Multiquip
dealer. These wedges are placed between the handle and the
gearbox to adjust the operating height of the handle. This kit
comes complete with wedges, new bolts and installation
instructions. This will move your oper ating handle position up or
down approximately 76mm (3 in.).
NEVER operate the trowel in a confined
area or enclosed area structure that does
not provide ample
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
free flow of air
.
BA-SERIES TROWEL— PRE-INSPECTION
ALWAYS wear approved eye and hearing
protection before operating the trowel.
NEVER place hands or feet inside the guard
rings while the engine is running. ALWAYS
shut the engine down before performing any
kind of maintenance service on the trowel.
It is recommended that the trowel's
be used to stop the engine after every use. Doing this will verify
that the switch is working properly and presents no danger to the
operator.
Before Starting
1.Read safety instructions at the beginning of manual.
trowel
2.Clean the
engine cooling air inlet, carburetor and air cleaner .
3 .Check the air filter for dirt and dust. If air filter is dirty , replace
air filter with a new one as required.
, removing dirt and dust, particularly the
Engine-Off Safety Switch
3.Insert and remove the dipstick without screwing it into the filler
neck. Check the oil level shown on the dipstick.
4.If the oil level is low (Figure 18), fill to the edge of the oil filler
hole with the recommended oil type (T able 4). Maximum oil
capacity is 400 cc.
NOTE
Figure 17. Engine Oil Dipstick (Removal)
Reference manufacturer engine
manual for specific servicing
instructions.
4.Check carburetor for external dirt and dust. Clean with dry
compressed air.
5 .Check fastening nuts and bolts for tightness.
Engine Oil Check
1.T o check the engine oil level, place the trowel on secure level
ground with the engine stopped.
2.Remove the filler dipstick from the engine oil filler hole
(Figure 17) and wipe it clean.
Motor fuels are highly flammable and can
be dangerous if mishandled. DO NOT
smoke while refueling. DO NOT attempt
hot
to refuel the trowel if the engine is
running
Fuel Check
1.Remove the gasoline cap located on top of fuel tank.
2.Visually inspect to see if fuel level is low. If fuel is low, replenish
3.When refueling, be sure to use a strainer for filtration. DO
Gearbox Oil
1.Determine if the
.
with unleaded fuel.
NOT top-off fuel. Wipe up any spilled fuel.
gearbox
plug located on the side of the gearbox. This plug will be
marked by the "
level of the lubrication oil should be to the bottom of the fill
plug.
check
GEARBOX
oil is low by removing the oil
" decal. See Figure 19. The correct
or
Blade Check
Check for worn or damaged blades. Check to see if one blade is
worn out while the others look new. If this is the case there could
be a blade pitch problem. Refer to the maintenance section of
this manual for blade pitch adjustment procedure. Replace any
worn blades.
CONTROLS
Safety Engine-Off Switches
This trowel has been equipped with a safety Engine-Off switch or
a hand operated clutch. Safety Engine-Off switches or hand
clutches should be tested every time the engine is started.
Centrifugal Type Engine-Off Switch
(Figure 20) The switching mechanism of this switch should
operate freely and should
the switch in the OFF position, the engine should not start or run.
The purpose of this switch is to stop the engine in a runaway
situation, (i.e.-the operator releasing the handle during operation).
NOTE
NEVER
Engine-Off Switch. It is provided for
operator safety. Injury may result if it
is disable, disconnected or
improperly maintained.
always
disable or disconnect the
be kept in this condition. With
OIL SIGHT/
FILL PLUG
DRAIN
PLUG
Figure 19. Gearbox
2.If lubrication oil begins to seep out as the drain plug is
being removed, then it can be assumed that the gearbox
has a sufficient amount of oil.
3.If lubrication oil does not seep out as the drain plug is
being removed, fill with type ISO 680 (Whiteman P/N 10139)
gearbox lubricant oil until the oil filler hole overflows.
V-belt Check
A worn or damaged V -belt can adv ersely affect the performance
of the trowel. If a V -belt is defective or worn simply replace the V belt as outlined in the maintenance section of this manual.
The unit automatically stops rotating when the clutch lever is
released.
DO NOT let the machine sit unused with the engine at high speed
for an extended period of time. It will cause premature belt wear
or may destroy the belt. Always set the engine speed to idle when
the hand clutch is disengaged.
Figure 20. Centrifugal Engine-Off Switch
hand operated
. These units are not equipped with an Engine-Off Switch.
BA-SERIES TROWEL — INITIAL START-UP
This section is intended to assist the operator with the initial
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
heavy
and
The trowel is
proper heavy lifting procedures and DO NOT
by the guard rings.
Lifting the Trowel Onto a Slab.
Auxiliary Lifting Tube
Remove the auxiliary lifting tube located on top of the main handle.
Insert the tube into the socket located on the opposite side of the
gearbox (Figure 21) from the handle.
Make sure that the hole in the tube engages with the pin in the
socket. With one person lifting from the main handle, and another
lifting from the auxiliary lifting tube pick up the machine to move
onto a slab.
awkward
to move around. Use
lift the trowel
start-up of the walk-behind trowel. It is extremely important that
this section be read carefully before attempting to use the trowel
in the field.
DO NOT use your trowel until this section is thoroughly
understood.
DO NOT attempt to operate the trowel until the Safety,
General Information and Inspection sections of this manual
have been read and thoroughly understood. Depending on
engine manufacturer , operating steps may v ary . See engine
manufacturer's operating manual. The following start-up
procedure makes reference to a HONDA 5.97 kW (8 HP)
Engine (Manual Start).
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Starting the Engine (
1.Place the engine
position.
Figure 21. Lifting the Trowel
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
The trowel must be stabilized by the person carrying the
operator’s handle
the handle may swing around and
damage to the trowel and bodily injury.
(Figure 21). If it is not stabilized properly
flip
the trowel, thus causing
2.Rotate the
HONDA
fuel valve lever
Figure 22. Engine Fuel Valve Lever
throttle
engine)
(Figure 22) to the "ON"
(Figure 23) to the "idle" position.
Lifting Bale (Option)
The lift bale is optional on new trowels. It provides an optimal lift
point for moving the trowel.
lift a trowel up onto a building with a crane. See “
Equipment
Using a
recommended, and is perfectly safe for the machine. Extra care
should be taken when lifting the machine off the ground, though.
Serious damage to the machine or personal injury could be
caused by dropping a trowel.
” section in this manual for ordering information.
3.Place the
"ON" position. For models that use this feature.
NEVER disable or disconnect the centrifugal Engine-Off
switch. It is provided for the operators’ safety and injury may
result if it is disabled, disconnected or improperly maintained.
4.Place the
centrifugal Engine-Off switch
WARNINGWARNING
WARNING
WARNINGWARNING
Figure 24. Centrifugal Engine-Off Switch
Choke Lever
(Figure 25) in the "
(Figure 24) in the
OPEN
" position
6.If the engine has started, slowly return the choke lever
7.
8.To begin troweling, rotate the throttle (Figure 27) toward the
Figure 26. Starter Grip
(Figure 25) to the
started repeat steps 1 through 5.
Before the trowel is placed into operation, run the engine for
several minutes. Check for fuel leaks, and noises that would
associate with a loose guard ring and/or covers.
RUN
" position.
"
CLOSED
position. If the engine has not
Figure 27. Throttle (Run Position)
Figure 25. Engine Choke Lever
5.Grasp the starter grip (Figure 26) and slowly pull it out. The
resistance becomes the hardest at a certain position, corresponding to the compression point. Pull the starter grip briskly
and smoothly for starting.
The following steps are intended as a basic guide to machine
operation, and are not to be considered a complete guide to
concrete finishing. We suggest that all operators (experienced
and novice) read “
Concrete Institute, Detroit, Michigan
section of this manual for more information.
Slabs on Grade
” published by the
. Read the “Training”
American
Pitching The Blades
Quick Pitch Handle
1 .T o pitch the blades upwards using the
T-handle
and pull the
the
, (Figure 28) simply squeeze the trigger lock
T-handle
T-handle
towards the engine will cause the blades
towards the operator. Pushing
"Quick-Pitch
Maneuvering the Trowel
Get into the operator’s position behind the handle. With a
1.
secure foothold and a firm grasp on the handles slowly
increase the engine speed until the desired blade speed is
obtained.
If your trowel has a
speed with the throttle, then pull on the hand clutch lever to
start the blades turning. Adjust the blade speed after the hand
™"
clutch is fully engaged.
to lay flat.
hand clutch (Figure 30)
, set your engine
Figure 28. Quick-Pitch™ T- Handle
Standard Handle
1.To pitch the blades upwards using the "
(Figure29) simply turn the
star-wheel
Standard
clockwise. T urning the
" handle,
star wheel counter clockwise will cause the blades to lay flat.
Figure 30. Hand Clutch Lever
2.T o maneuver the trow el, gently lift up on or press down on the
main trowel handle. To move the machine to the operator’s
lift up
left,
down
3.The best method for finishing concrete is to slowly walk
backwards (Figure 31) with the trowel, guiding the trowel
from side to side. This will cover all f ootprints on wet concrete.
4.Remember that if you let go of the trowel, just step away and
let the trowel come to a complete stop before trying to recover
the trowel.
Figure 32 below illustrates a typical walk-behind trowel
application. Practice maneuvering the trowel. The trick is to "let
the trowel do the work".
Continue to practice maneuvering the trowel. T ry to practice as if
you were finishing a slab of concrete. Practice edging and
covering a large area. Remember a good finishing technique is
to work backwards. Be careful when moving backwards so that
hazards can be avoided. The best way to get accustomed to the
trowel is repeated use.
Blades should be changed when
they fail to finish concrete in a
satisfactory manner.
Blades are a vital part of finishing concrete. This trowel, or
finisher
built to stringent quality standards out of the finest trowel steel. If
you need replacement blades, consult your parts list in this
manual for part numbers and order them from your Multiquip parts
dealer or importer.
Combo Blades
This trowel was equipped with combination
32) blades as original equipment. These blades have been
designed for optimum performance in both the floating and
finishing operations. These blades are versatile and should take
care of most troweling needs.
, has been designed to finish concrete and the blades are
float/finish
(Figure
Clip-On Float Blades (Optional)
These blades will clip (Figure 34) on to an existing installed blade,
allowing your finisher to float on “wet” concrete so that the
troweling operation can begin as early as possible. They are
easily removable, so that after the floating operation, when the
concrete is sufficiently cured, they can be removed to expose the
finish blades for continued troweling.
Float Discs (Optional)
These round discs (Figure 35) attach to the spiders and allow the
machine to “float” on “w et” concrete. The disc design allows early
floating and easy movement from wet to dry areas. The y are also
very effective in embedding large aggregates and surface
hardeners.
Figure 34. Clip-On Float Blade
Figure 32. Combination Blade
Finish Blades (Optional)
These blades (Figure 33) have been specifically designed for
finish operations with this trowel. They will provide a premium
surface finishing capability from your trow el. They should only be
used after the concrete has set to the point where the trowel does
not sink into the concrete when placed on it.
Available grinding attachments are used for grinding surface
imperfections or joints. These attachments allow greater utilization
of your trowel. Figure 36 illustrates a typical grinding disk assembly,
complete with hub and stone mounting plate.
Trowel Arm Adjustment Tool
If blades show uneven wear patterns or some tend to wear out
faster than others, the trowel arms may need to be adjusted.
Whiteman makes a special tool (Figure 38) that will adjust all of
the trowel arms consistently . The Trowel Arm Fixture P/N is 1817.
Figure 36. Grinding Disk
Lifting Bale
Figure 38. Trowel Arm Adjustment Fixture
There is a heavy duty, center balance type lifting bale (Figure 37)
made specifically for your trowel. These bales are ideal for lifting
and transporting your trowel. They are designed to lift the finisher
and balance it on it’s center of gravity, providing great stability
while lifting. This option is not av ailable on electric trowel models .
See the engine manual supplied with
your machine for appropriate engine
maintenance schedule and
troubleshooting guide for problems.
NOTE
The following procedure should be
followed to adjust trowel arms when
it becomes apparent that the trowel
is finishing poorly or in need of
routine maintenance.
At the front of the book (Page 7) there is a “
Checklist
basis.
ALWAYS disconnect spark plug and secure awa y from the
engine before performing service or maintenance.
ALWAYS allow the engine to cool before
servicing. NEVER attempt any maintenance
work on a
MAINTENANCE SCHEDULE
Daily (8-10 Hours)
1.Check the oil level in the engine crankcase and gear box,
2.Check V-belt.
Weekly (50-60 Hours)
”. Make copies of this checklist and use it on a daily
WARNINGWARNING
WARNING
WARNINGWARNING
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
hot!
engine.
fill as necessary .
Daily Pre-Operation
Trowel Arm Adjustment Procedure
level
, clean area to test the trowel prior to and after is essential.
A
Any unlevel
will give an incorrect perception of adjustment. Ideally , a 13 cm x
13 cm (5 x 5 in.), 19 mm (3/4 in.) thick
used for testing.
1.To determine which blades need adjustment, place the
trowel in the test area (three-quarter inch thick plate) and look
for the following conditions:
■
■
Figure 39 below illustrates a "
trowel arms
touching (.25 mm [.010 in.] max. clearance) lower wear plate. All
alignment bolts should be spaced the same distance from the
lower wear plate.
spots
in the floor or debris under the trowel blades
flat
steel plate should be
Pitch the blades as flat as possible and look at the
adjustment bolts
with the
that one of them is not making contact, some adjustment
will be necessary .
Is the machine wearing out blades unevenly (i.e. one
blade is completely worn out while the others look new)?
lower wear plate
". Check to see that adjustment bolt is barely
. The y should all barely make contact
on the spider. If y ou can see
worn spider bushings or bent
1.Relube arms, thrust collar and clutch.
2.Replace blades if necessary .
3.Check and clean or replace the engine air filter as
necessary .
4.Replace engine oil and filter as necessary, see engine
manual.
Monthly (200-300 Hours)
1.Remove, clean, reinstall and relube the arms and thrust
collar. Adjust the blade arms.
2.Remove, clean, reinstall clutch.
Yearly (2000-2500 Hours)
1.Check and replace if necessary the arm bushings, thrust
collar bushings and shaft seals.
Figure 40 below illustrates the "
plate (as shipped from the factory).
Figure 39. Worn Spider Plate
correct alignment
Figure 40. Correct Spider Plate Alignment
" for a spider
BA-SERIES TROWEL — MAINTENANCE
2.Start engine, and bring trowel blades up to full speed and look
for the following conditions:
■
Does the trowel have a perceived rolling or bouncing
motion when in use?
■
Look at the trowel while it is running, does the guard
ring “rock up and down” relative to the ground?
Spider Removal
1.Once it is determined that an adjustment is required, remove
the spider assembly from the gearbox shaft as follows:
a.Locate the cone point square head set screw (Figure 41)
and attached jam nut found on the side of the spider
assembly.
b.Loosen the jam nut and cone point square head set
c.If the trowel is equipped with an outer stabilizer ring
screw, and carefully lift the
of the spider assembly . A slight tap with a rubber mallet
may be necessary to dislodge the spider from the main
shaft of the gearbox.
(Figure 42), remove the four bolts at the end of each
spider arm.
upper trowel assembly
off
Figure 42. Stabilizer Ring
d.Examine stabilizer ring for out of round or bends. If ring
is damaged, replace ring. If ring is found to be correct with
no damage, set aside.
Trowel Arm Removal
1.Each trowel arm is held in place at the spider plate by a hex
head bolt (zerk grease fitting) and a roll pin. Remove both the
hex head bolt and the roll pin (Figure 43) from the spider
plate.
3.Should the trowel arm inserts (bronze bushing ) come out
with the trowel arm, remove the bushing from the trowel arm
and set aside in a safe place. If the bushing is retained inside
the spider plate, carefully remove the bushing.
4.Examine the bronze trowel arm bushing insert (Figure 44),
clean if necessary . Replace bushing if out of round or worn.
Figure 44. Bronze Bushings
Trowel Blade Removal
Trowel Arm Flatness Test
1.Using a piece of 19 mm (3/4 in.) thick steel plate or any surface
which is
for flatness.
2.Check each of the six sides of the trowel arm (hex section
only) using a ten thousands of an inch (max.) feeler gauge
(Figure 46) between the flat of the trowel arm and an
tremely flat
true
and
flat
test surface.
, check all
six sides
of each trowel arm
ex
-
WARNINGWARNING
WARNING
WARNINGWARNING
ALWAYS disconnect spark plug and secure awa y from the
engine before performing service or maintenance.
1.Remove the trowel blades from the trowel arm by removing
the three hex head bolts (Figure 45) from the trowel arm. Set
blades aside.
3.If the trowel arm is found to be
trowel arm. A bent trowel will not allow the trowel to operate
in a smooth fluid rotation.
4.Next, check each of the six sides of the round machined shaft
section of the trowel arm. Each section should have the
clearance
test surface.
Figure 45. Trowel Blades
2.
Wire brush
trowel arm. Repeat this for the remaining three arms.
any build-up of concrete from all six sides of the
NOTE
Figure 46. Trowel Arm Flatness Test
uneven
between the round of the trowel arm shaft and the
or
bent
, replace the
same
Trowel arms can be damaged by
rough handling or by striking
exposed plumbing or forms while in
operation.
ALWAYS
look-out for
objects which might cause damage
to the trowel arms.
Shown in Figure 47 is the adjustment fixture with a trowel arm
inserted. As each trowel arm is locked into the fixture, the arm bolt
is adjusted to where it contacts a stop on the fixture. This will
consistently adjust all of the trowel arms, keeping the finisher as
flat and evenly pitched as possible.
1.Locate the trowel arm adjustment tool P/N 1817. Set the
adjustment tool for a clock-wise blade rotation, meaning the
fixture arm is in the "UP" position.
3.Un-screw the locking bolts on the adjustment tool, and place
the trowel arm into the adjustment fixture channel as shown
in Figure 48. A
holes on the trowel arm. Make sure to align the trowel
adjustment bolt with the fixture adjustment bolt.
4.Using an allen wrench, tighten the locking bolts on the
adjustment tool and securely lock the trowel arm in place.
5.Loosen the locking nut on the trowel arm lever , then turn the
trowel arm adjusting bolt until it barely touches (.25 mm
[.010in.]) the adjusting bolt on the fixture.
6.After the correct adjustment has been made, tighten lock nut
on trowel arm lever to lock in place.
7.Loosen locking bolts on adjustment fixture, and remove
trowel arm from fixture.
8.Repeat steps 2-7 for the remaining trowel arms.
Re-Assembly
1.Clean and examine the upper/lower wear plates and thrust
collar. Examine the entire spider assembly . Wire brush any
concrete or rust build-up. If any of the spider components are
found to be damaged or out of round, replace them.
thin shim
may be required to cover the blade
2.Make sure that the bronze trowel arm bushing is not damage
3.Reinstall bronze bushing onto trowel arm.
4.Repeat steps 2 -3 for each trowel arm.
5.Make sure that the spring tensioner is in the correct position
6.Insert all trowel arms with levers into spider plate (with bronze
7.Lock trowel arms in place by tightening the hex head zerk
Figure 47. Trowel Arm Adjustment Tool
2.T rowels manuf actured prior to June of 1982 require that the
distance from the end of the adjusting bolt and the fixture arm
must be 22 mm (7/8 in.) (Figure 48). Conversely, trowels
manufactured after June of 1982 require that the distance
from the end of the adjusting bolt and the fixture arm must be
13 mm (1/2 in.).
8.Re-install the blades back onto the trowel arms.
9.Install stabilizer ring onto spider assembly.
10. Reinstall lower wear plate,
or out of round. Clean the bushing if necessary. If the bronze
bushing is damage or worn, replace it.
to exert tension on the trowel arm.
bushing already installed) using care to align grease hole on
bronze bushing with grease hole fitting on spider plate.
grease fitting and jam nut.
thrust collar
in the
ring
the spider shaft. Make sure that there is little or no lateral
movement between the thrust collar and the spider shaft.
11. Carefully lift
way on gear bo x main shaft and insert into spider assembly.
12. Reinstall square head cone point into spider plate and
tighten in place. Tighten jam nut. Use care in making sure
point of set screw engages groove in gear box main shaft.
13. Lubricate all grease points (zerk fittings) with premium
Lithum 12"
"
consistency.
Testing
1.Place trowel in test area, start engine and test trowel for
smoothness.
2.If trowel bounces has excessive vibration or does not run
smoothly repeat alignment procedure.
Changing a Blade
Whiteman recommends that
same time
the blades are changed at one time.
WARNINGWARNING
WARNING
WARNINGWARNING
ALWAYS disconnect spark plug and secure aw ay from the
engine before performing service or maintenance.
1.Place the machine on a flat, level surface. Adjust the blade
pitch control to make the blades as flat as possible. Note the
blade orientation on the trowel arm.
NOTE
the upper trowel assembly
based grease, conforming to NLG1 Grade #2
all the blades be changed at the
. The machine may wobble or bounce if only some of
Before removing the blades,
please note the orientation of the
, line up the key-
blade on the trowel arm.
1.Remove the three bolts and lock washers that secure the
blade to the trowel arm. Remove the blade.
2.Using a wire brush, scrape all concrete particles and foreign
debris from the trowel arm.
3.Install the new trowel blade onto the trowel arm. Make sure
blade is installed correctly , maintaining the proper orientation for direction of rotation
4.Reinstall
blade to the trowel arm. Tighten all three bolts securely.
5.Repeat steps 1-4 for all remaining blades.
the three bolts and lock washers that secure the
.
Hand Clutch - Optional CE Compliant Trowels
CE compliant trowels are equipped with one of two types of handoperated clutches instead of an automatic centrifugal clutch. Both
are belt-tightener type clutches and operate by removing slack in
the V-belt which then transmits power from the engine to the
gearbox.
There are two reasons to adjust the hand clutch: 1) operator
comfort; 2) initial belt stretch and break-in.
The easiest and most simple adjustment is to adjust the clutch
cable housing using the adjustment nut (Figure 48) located on the
clutch lever. Rotating the nut provides either more or less
(depending upon the direction of rotation) clutch engagement.
Hand Clutch Disengagement
1.Start the trowel as outlined in the "
this manual. Move the throttle lever so that the engine is
running about 1/4 to 1/3 of full speed.
2.Grip the trowel handle firmly and carefully engage the clutch
by squeezing the clutch lever toward the handle with your left
hand. After the trowel is stabilized and you feel comfortable
with its operation, use your right hand to adjust the housing
adjustment nut.
3.
Rotating the nut so that it backs out of the lever housing
increases the engagement and also the squeezing force
required to keep it engaged.
Too much squeezing force may cause premature hand
fatigue. Too little squeezing force may cause belt slippage
and premature belt wear. Each operator should experiment
with the adjustment to get the optimum combination of
squeeze force and belt grip.
4.After initial break-in (approximately 8 hours) the above
procedure should be repeated to attain optimum operator
comfort and belt wear.
After considerable belt wear, the adjustments mentioned
5.
above may have a little or no effect on clutch engagement. If
this is the case, the belt should be replaced.
ALWAYS install pans either on the work area or on an area
that is next to and level with the work area. DO NOT lift the
trowel when the pans are attached.
Refer to Figure 49 when installing pans onto finisher blades.
1.Lower finisher onto pan with blades (item #1) adjacent to Z-
Clips (item #4).
2.Rotate blades into position under Z-Clips. Ensure that the
blades are rotated in the direction of travel when the machine
is in operation or use the engine to rotate the blades into
position.
3.Attach the blade tie-downs (item #3) to the far side of the Z-
Clip brackets (item #4) with tie-down knobs (item #2) as
shown in figure 49.
4.Check to make certain that the blade edges are secured
under the Z-Clips and the tie-downs are secured completely
over the edges of the blade bar before the machine is put back
into operation.
2
3
1
4
1BLADE ASSEMBL Y
2KNOB, TIE DOWN Z-CLIP PANS
3TIED OWN, BLADE
4Z-CLIP, PAN
20406SHIM, OUTPUT 0.020 THICK1
25%*20396RING, O -257 BUNA N1
26%12875COVER, GEARBOX1
27%10235WASHER, C/S EXT. SHKP4
28%1146SCREW, FHSC 5/16-18 X 1, NYLOC NP4
29%*0254SEAL, OIL, NA TIONAL #4707121
301150ARM, YOKE1
3120802RING, SNAP, TRU ARC 5100-37 OR EQUIV.2
3220803SP ACER, .50 OD X .40 ID X 0.25L2
3320801PIN, YOKE1
3420811STATIONAR Y GU ARD RING1
351810WEIGHT2
361958FRONT ENGINE MOUNT (HONDA)1
361965FRONT ENGINE MOUNT (ROBIN)1
3620536FRONT ENGINE MOUNT (BRIGGS)1
371964REAR ENGINE MOUNT (HONDA 8HP)1
3720954REAR ENGINE MNT . (HOND A W/HAND CLUTCH) 1
3720545REAR ENGINE MOUNT (ROBIN)1
3720558REAR ENGINE MOUNT (BRIGGS)1
381247GROMMET 1/4 X .875 ID X 1-5/8 OD4
391245BUSHING, GUARD RING4
150181 BLOCK W ASHER 1/4"2
162577T-BOL T 1/4-202
170300 BFLAT WASHER 5/16"4
180161 CLOCK W ASHER 5/16"4
1910181HHCS 5/16-24 x 1-1/4"4
201391HHCS 5/16-24 x 1-1/2"4
21LIFT STRAP ................................... 1 .......... CONTACT UNIT SALES DEPT.
116271ZE2000GASKET, ELBOW1
217210ZE2505ELEMENT, AIR CLEANER, DU AL1
217210ZE2822ELEMENT, AIR CLEANER, DU AL1
317218ZE2505FILTER, OUTER1
317218ZE2821FILTER, OUTER1
517231ZH9820COVER, AIR CLEANER1
617232891000GROMMET, AIR CLEANER1
817238ZE2310COLLAR, AIR CLEANER2
917239ZE1000COLLAR B, AIR CLEANER1
1017410ZE2020ELBOW COMP., AIR CLEANER1
1290203ZA0800WINGNUT 6MM1
1390325044000WINGNUT , T OOL BOX SETTING2
1490009ZE2003BOLT- WASHER 6 X 221
159405006000NUT, FLANGE 6MM2
114100ZE2W00CAMSHAFT ASSY1
114100ZE2W01CAMSHAFT ASSY1
114100ZE2306CAMSHAFT1
214410ZE2013ROD PUSH2
314431ZE2010ARM V ALVE ROCKER2
414441ZE2000LIF TE R VALVE2
514451ZE1013PIVOT ROCKER ARM2
614568ZE1000SPRING, WEIGHT RETURN1
714711ZE2000VALVE, IN.1
814721ZE2000VALVE, EX.1
914751ZE2003SPRING, VALVE2
1014771ZE2000RET AINER, IN. VALVE SPRING1
1114773ZE2000RET AINER, EX. VALVE SPRING1
1214781ZE2000ROTA T OR, V AL VE1
1314791ZE2010PLA TE, PUSH R OD GUIDE1
1490012ZE0010BOLT, PI VOT 8MM2
1590206ZE1000NUT, PI VOT AD J.2