Stone 45CM User manual

OPERATOR MANUAL
MODELS: 45CM & 55CM
REVISION: B 09/2001 P/N 56384
CONCRETE MIXER
A 100% employee-owned American manufacturer

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FOREWORD ................................................................................................................................... 4
LIMITED WARRANTY ................................................................................................................. 5
TECHNICAL DATA ....................................................................................................................... 6 - 8
Specifications .............................................................................................................................. 6
Imperial Torque Chart ................................................................................................................. 7
Metric Torque Chart.................................................................................................................... 8
HEALTH & SAFETY ..................................................................................................................... 9 - 13
OPERATIONS ................................................................................................................................. 14 - 17
Before Starting ............................................................................................................................ 1
Safety Chain Installation ............................................................................................................. 1
Oil Levels and Lubrication ......................................................................................................... 1
Hardware ..................................................................................................................................... 1
Fuel ............................................................................................................................................. 1
To Start the Engine/Motor .......................................................................................................... 1 - 15
To Stop The Engine/Motor ......................................................................................................... 15
Operation..................................................................................................................................... 15
General Mixing Instructions ....................................................................................................... 15
Sample Mix ................................................................................................................................. 15
Cleaning ...................................................................................................................................... 16
Towing ........................................................................................................................................ 16
Maintenance Schedule ................................................................................................................ 17
CALIFORNIA PROPOSITION 65 WARNING ........................................................................... 19
TABLE of CONTENTS 45CM & 55CM

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Please enter (data on machine type
plate)
Machine Type: ____________________
Machine No.: ____________________
Engine Type: ____________________
Engine No.: ____________________
These instructions include:
Safety regulations
Operating instructions
Maintenance instructions
These instructions have been prepared for
operation on the construction site and for the
maintenance engineer.
These instructions are intended to simplify
operation of the machine and to avoid
malfunctions through improper operation.
Observing the maintenance instructions will
increase the reliability and service life of the
machine when used on the construction site
and reduce repair costs and downtimes.
Always keep these instructions at the place
of use of the machine.
Only operate the machine as instructed and
follow these instructions.
Observe the safety regulations as well as the
guidelines of the civil engineering trade
association. Observe the safety rules for
operation and the pertinent regulations for
the prevention of accidents.
Stone Construction Equipment, Inc. is not
liable for the function of the machine when
used in an improper manner or for other
than the intended purpose.
Operating errors, improper maintenance
and the use of incorrect operating materials
are not covered by the warranty.
The above information does not extend the
warranty and liability conditions of business
of Stone Construction Equipment, Inc.
Stone Construction Equipment, Inc.
P.O. Box 150, Honeoye, New Yor 14471
Phone: [phone]
Fax: [phone]
FOREWORD

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L i m i t e d W a r r a n t y
The Manufacturer warrants that products manufactured shall be free from defects in material and
workmanship that develop under normal use for a period of 90 days for concrete vibrators and electric
pumps, one year for Rhino®, Bulldog®, Wolfpac Rollers, trowels, Stompers®, saws, forward plates,
engine powered pumps, and 6 months for all other products from the date of shipment. The foregoing
shall be the exclusive remedy of the buyer and the exclusive liability of the Manufacturer. Our warranty
excludes normal replaceable wear items, i.e. gaskets, wear plates, seals, O-rings, V-belts, drive chains,
clutches, etc. Any equipment, part or product which is furnished by the Manufacturer but manufactured by
another,bearsonlythewarrantygivenbysuchothermanufacturer. (TheManufacturerextendsthewarranty
period to “Lifetime” for the drum bearings and seals for the mortar mixers, and agrees to furnish, free of
charge, the bearings and seals only upon receipt of the defective parts. The warranty is two years for
eccentric bearings on the forward plate compactors, mortar and plaster mixer drums, trowel gearboxes
andfiveyearsonthe Bulldog trenchrollereccentricbearings.) A WarrantyEvaluation Formmustaccompany
all defective parts. Warranty is voided by product abuse, alterations, and use of equipment in applications
for which it was not intended, use of non-manufacturer parts, or failure to follow documented service
instructions. Theforegoing warrantyis exclusiveof all other warrantieswhetherwritten or oral,expressed
or implied. No warranty of merchantability or fitness for a particular purpose shall apply. The agents,
dealerandemployeesofManufacturerarenot authorized to make modification tothiswarranty, oradditional
warranties binding on Manufacturer. Therefore, additional statements, whether oral or written, do not
constitute warranty and should not be relied upon.
TheManufacturer’s soleresponsibilityforany breach oftheforegoingprovision of this contract,withrespect
toany product or part notconforming tothe Warrantyor the description hereincontained, isat its option (a)
to repair, replace or refund such product or parts upon the prepaid return thereof to location designated
specifically by the Manufacturer. Product returns not shipped prepaid or on an economical transportation
basis will be refused (b) as an alternative to the foregoing modes of settlement - the Manufacturer’s dealer
to repair defective units with reimbursement for expenses, except labor, and be reviewed with the
Manufacturer prior to repair. A Warranty Evaluation Form must accompany all warranty claims.
Except as set forth hereinabove and without limitation of the above, there are no warranties or other
affirmations which extends beyond the description of the products and the fact hereof, or as to operational
efficiency, product reliability or maintainability or compatibility with products furnished by others. In no
event whether as a result of breach of contract or warranty or alleged negligence, shall the Manufacturer
beliable forspecial or consequential damages including but notlimited to:Loss of profits or revenues, loss
of use of the product or any associated product, cost of capital, cost of substitute products, facilities or
services or claims of customers.
Noclaim will beallowed forproducts lost ordamaged in transit. Suchclaims shouldbe filed withthe carrier
within fifteen days.
EffectiveApril 1, 1998.
4/98 P/N 51018
Stone Construction Equipment, Inc.
32 East Main Street, P. O. Box 150
Honeoye, NY 14471-0150
Phone: [phone] • 1-716-229-5141
Fax: [phone]
www.stone-equip.com • e-mail: [email protected]
Bred Tough, Born To Work. The
Way It Ought To Be.

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TECHNICAL DATA Specifications
Dimensions
Operating Wt.
Batch Capacity
(Bags)
Batch Capacity
(cu. ft.)
Total Volume
L x W x H
ower Source
418 lbs. (w/5hp Honda)
189.6 kg
1/3 - 1/2 bags
4 cu. ft. / .1 cu. m.
6.0 cu. ft. / .17 cu. m.
70 x 46 x 56 (in)
177.8 x 116.8 x 142.2 (cm)
3/4 hp / 5.6 kW Electric
3.5 hp / 2.6 kW B&S
5 hp / 3.7 kW B&S
5 hp / 3.7 kW B&S I/
5.5 hp / 4.1 kW Honda
Stone 45CM & 55CM Mixer – Specifications
45CM 55CM
425 lbs. (w/5hp Honda)
192.8 kg
1/2 - 2/3 bags
5 cu. ft. / .14 cu. m.
6.6 cu. ft. / .19 cu. m
70 x 46 x 59 (in)
177.8 x 116.8 x 149.9 (cm)
3/4 hp / 5.6 kW Electric
3.5 hp / 2.6 kW B&S
5 hp / 3.7 kW B&S
5 hp / 3.7 kW B&S I/
5.5 hp / 4.1 kW Honda

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TECHNICAL DATA Imperial Torque Chart
SAE GRADE 5
Coarse Thread, Zinc-Plated SAE GRADE 8 Coarse Thread, Zinc-Plated
SIZE TORQUE SIZE TORQUE
ft. lbs. Nm ft. lbs. Nm
1/4 - 20 (.250) 681/4 - 20 (.250) 912
5/16 - 18 (.3125) 13 18 5/16 - 18 (.3125) 18 24
3/8 - 16 (.375) 23 31 3/8 - 16 (.375) 33 45
7/16 - 14 (.4375) 37 50 7/16 - 14 (.4375) 52 70
1/2 - 13 (.500) 57 77 1/2 - 13 (.500) 80 108
9/16 - 12 (.5625) 82 111 9/16 - 12 (.5625) 115 156
5/8 - 11 (.625) 112 152 5/8 - 11 (.625) 159 215
3/4 - 10 (.750) 200 271 3/4 - 10 (.750) 282 382
7/8 - 9 (.875) 322 436.5 7/8 - 9 (.875) 454 615
1 - 8 (1.000) 483 655 1 - 8 (1.000) 682 925
SAE GRADE 5
Fine Thread, Zinc-Plated SAE GRADE 8 Fine Thread, Zinc-Plated
SIZE TORQUE SIZE TORQUE
ft. lbs. Nm ft. lbs. Nm
1/4 - 28 (.250) 7101/4 - 28 (.250) 10 14
5/16 - 24 (.3125) 14 19 5/16 - 24 (.3125) 20 27
3/8 - 24 (.375) 26 35 3/8 - 24 (.375) 37 50
7/16 - 20 (.4375) 41 56 7/16 - 20 (.4375) 58 79
1/2 - 20 (.500) 64 87 1/2 - 20 (.500) 90 122
9/16 - 18 (.5625) 91 123 9/16 - 18 (.5625) 129 175
5/8 - 18 (.625) 128 173 5/8 - 18 (.625) 180 244
3/4 - 16 (.750) 223 302 3/4 - 16 (.750) 315 427
7/8 - 14 (.875) 355 481 7/8 - 9 (.875) 501 679
1 - 12 (1.000) 529 717 1 - 12 (1.000) 746 1011
1 -14 (1.000) 541 733 1 -14 (1.000) 764 1036
t-chrt_i.doc

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TECHNICAL DATA Metric Torque Chart
Property Class 8.8
ZINC-PLATED Coarse Thread Fine Thread
SIZE Nm ft. lbs. Nm ft. lbs.
M6 9.9 7 NA NA
M8 24 18 25 18
M10 48 35 49 36
M12 83 61 88 65
M14 132 97 140 103
M16 200 148 210 155
M20 390 288 425 313
M24 675 498 720 531
Property Class 10.9
ZINC-PLATED Coarse Thread Fine Thread
SIZE Nm ft. lbs. Nm ft. lbs.
M6 14 10 NA NA
M8 34 25 35 26
M10 67 49 68 50
M12 117 86 125 92
M14 185 136 192 142
M16 285 210 295 218
M20 550 406 600 443
M24 950 701 1000 738
Property Class 12.9
ZINC-PLATED Coarse Thread Fine Thread
SIZE Nm ft. lbs. Nm ft. lbs.
M6 16.5 12 NA NA
M8 40 30 42 31
M10 81 60 82 60
M12 140 103 150 111
M14 220 162 235 173
M16 340 251 350 258
M20 660 487 720 531
M24 1140 841 1200 885
Conversion Factor: 1 ft. lb. = 1.3558 Nm

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HEALTH & SAFETY Safety Precautions
Before using this equipment, study this entire manual
to become familiar with its operation. Do not allow
untrained or unauthorized personnel, especially
children, to operate this equipment. Use only factory
authorized parts for service.
When warning decals are destroyed or missing, contact
the Manufacturer immediately at 1-800-888-9926 for
replacement. For the safety of yourself and others, it is
imperative that the following rules are observed. Failure
to do so may result in serious injury or death.
This notation appears before warnings in the text. It means that the
step which follows must be carried out to avoid the possibility of
personal injury or death. These warnings are intended to help the
technician avoid any potential hazards encountered in the normal
service procedures. We strongly recommend that the reader takes
advantage of the information provided to prevent personal injury or
injury to others.
FOLLOW SAFETY INSTRUCTIONS
Carefully read all safety messages and decals in this manual and on
your machine safety signs. Keep decals in good condition. Replace
missing or damaged decals. Be sure new equipment components and
repair parts include the current safety signs. Replacement safety signs
and decals are available through your dealer.
Learn how to operate the machine and how to use controls properly.
Do not let anyone operate without instruction.
Keep your machine in proper working condition. Unauthorized
modifications to the machine may impair the function and/or safety
and affect machine life.
If you do not understand any part of this manual and need assistance,
contact your dealer.
UNDERSTAND SIGNAL WORDS
A signal word  DANGER, WARNING, or CAUTION  is used with
the safety-alert symbol. DANGER identifies the most serious hazards.
DANGER or WARNING safety signs are located near specific
hazards. General precautions are listed on CAUTION safety signs.
CAUTION also calls attention to safety messages in this manual.

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HEALTH & SAFETY Safety Precautions
HOT SURFACES
 Avoid contact with hot exhaust systems and engines.
 Allow all components in the engine compartment to cool before
performing any service work.
USE COMMON SENSE WHEN HANDLING FUELS
 Transport and handle fuel only when contained in approved safety
container.
 Do not smoke when refueling or during any other fuel handling
operation.
 Do not refuel while the engine is running or while it is still hot.
 If fuel is spilled during refueling, wipe it off of the engine
immediately and discard the rag in a safe place.
 Do not operate the equipment if fuel or oil leaks exist - repair
immediately.
 Never operate this equipment in an explosive atmosphere.
Always use the proper size grounded extension cord, conforming to
the National Electric Code and Local Ordinances.
Inspect all extensions and electrical cords for cuts, frayed wire and
broken connectors before use. Do not use cords if not in good
condition.
Do not route extension cords through standing water.
Do not operate the mixer in standing water.
When cleaning the mixer, never spray water on the electric motor.
 Never leave mixer unattended while running.
 Mix only concrete.
WARNING

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HEALTH & SAFETY Safety Precautions
PREPARE FOR EMERGENCIES
 Be prepared if a fire starts.
 Keep a first aid kit and fire extinguisher handy.
 Keep emergency numbers for doctors, ambulance service, hospital,
and fire department near your telephone.
 Never perform any work on the mixer while it is running.
 Before working on the mixer, stop the engine and disconnect the
spark plug wire(s) to prevent accidental starting. On electric models,
disconnect the electric cord at the mixer.
 Keep cowl closed and latched during the operation, close and latch
cowl immediately after starting.
 Keep hands, clothing and jewelry away from all moving parts.
 Keep all guards in place, including drum guards.
 Never place your hands or any solid object into the drum while the
mixer is in operation.
WEAR PROTECTI E CLOTHING
 Wear close fitting clothing and safety equipment appropriate to the
job.
 Prolonged exposure to loud noise can cause impairment or loss of
hearing.
 Wear a suitable hearing protective device such as earmuffs or
earplugs to protect against objectionable or uncomfortable loud
noises.
 Operating equipment safely requires the full attention of the
operator. Do not wear radio or music headphones while operating
machine.

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HEALTH & SAFETY Safety Precautions
 Starting fluid (ether) is highly flammable, do not use or an
explosion or fire may result.
 Never operate unit in a poorly ventilated or enclosed area.
 Avoid prolonged breathing of exhaust gases.
 Engine exhaust fumes can cause sickness or death.
Warning-Towing
•Warning: Do not tow the mixer with the drum in the dump position.
Mixer may become unstable and tip over when hitting a curb,
pothole, or other obstruction.
•Warning: Always attach safety chains properly before mixer is
towed. Maximum towing speed 55 m.p.h. (90 km/hr). Reduce
speed according to highway conditions.
Warning-Eye Protection
•Always wear splash goggles when operating mixer.

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HEALTH & SAFETY Safety Precautions
PRACTICE SAFE MAINTENANCE
 Understand service procedure before doing work. Keep area clean
and dry.
 Never lubricate, service or adjust machine while it is moving. Keep
hands, feet, and clothing from power-driven parts. Disengage all
power and operate controls to relieve pressure. Lower equipment to
the ground. Stop the engine. Remove the key. Allow machine to
cool.
 Securely support any machine elements that must be raised for
service work.
 Keep all parts in good condition and properly installed. Repair
damage immediately. Replace worn or broken parts. Remove any
buildup of grease, oil, or debris.
 Disconnect battery ground cable (-) before making adjustments on
electrical systems or welding on machine.
DISPOSE OF WASTE PROPERLY
 Improperly disposing of waste can threaten the environment and
ecology. Potentially harmful waste used with equipment include
such items as oil, fuel, coolant, brake fluid, filters, and batteries.
 Use leakproof containers when draining fluids. Do not use food or
beverage containers that may mislead someone into drinking from
them.
 Do not pour waste onto the ground, down a drain, or into any water
source.
 Air conditioning refrigerants escaping into the air can damage the
Earths atmosphere. Government regulations may require a certified
air conditioning service center to recover and recycle used air
conditioning refrigerants.
 Inquire on the proper way to recycle or dispose of waste from your
local environmental or recycling center.
SAFETY DECALS - FOR THE SAFETY OF YOURSELF AND OTHERS REPLACE ANY
DAMAGED OR MISSING SAFETY DECALS.
 Warning Decal (SN-92) P/N 55011
 Safety Instruction Decal (SN-67A) P/N 550 6
 Warning Decal (SN-8) P/N 55127
 Safety Chain Decal (Front Post, SN-66) P/N 55121

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OPERATION 45CM & 55CM
BEFORE STARTING
Mixers are shipped completely assembled and ready
for operation except for installation of the safety chain.
SAFETY CHAIN INSTALLATION
Remove the safety chain kit from the engine
compartment. The kit includes (1) 8 ft. length of safety
chain and (2) connecting links. Pull one end of the
chain through the (2) key hole slots located in the front
post of the mixer with a hook (see drawing below and
decal on mixer front post). Attach the connecting links
to each end of the chain. Follow the instructions in the
TOWING section of this manual and on the mixer front
post to attach the safety chain to the towing vehicle.
INSTALLING CHAIN TO MIXER
OIL LE ELS AND LUBRICATION
Be sure to check the oil levels in the engine and engine
reduction unit BEFORE starting this unit. The engine
warranty is OID if it is run without oil. Consult the
ENGINE MANUAL supplied with this unit for specific
instructions and oil recommendations.
Also check the trunnion bearings to make sure they
have been greased.
BEFORE WORKING ON MACHINE, MAKE
SURE ENGINE SPARK PLUG WIRE IS
DISCONNECTED, OR, IF ELECTRIC, THAT
THE ELECTRIC CORD IS DISCONNECTED, TO
PRE ENT ANY ACCIDENTAL STARTING.
HARDWARE
Check all hardware on mixer and engine / motor before
starting. Consult the TORQUE CHART section of this
manual and tighten any loose hardware accordingly.
FUEL
If your mixer is equipped with a gasoline engine, fill
the gas tank with clean gasoline from a safety can.
Consult the ENGINE MANUAL supplied with this unit
for the proper type of gasoline required.
DO NOT mix oil with gasoline.
FOLLOW THE GUIDELINES FOUND IN THE
SAFETY PRECAUTION SECTION OF THIS
MANUAL WHENE ER HANDLING GASOLINE.
TO START THE ENGINE / MOTOR
COLD START - Open the fuel valve under the gas
tank all the way. Open the throttle approximately half
way and apply the choke. Pull the starter rope sharply
until the engine starts. When the engine starts, open
the choke and adjust the throttle as necessary to keep it
running. Allow the engine to warm up for a few
minutes before placing it under the load. If the engine
doesn't start after (3) pulls, open choke slightly to
prevent flooding. Always operate the engine at full
throttle when under load.
HOT START - Open the valve under the gas tank all
the way if it has been shut off. Open the throttle
approximately half way. Do not apply the choke. Pull
the starter rope sharply until the engine starts. When
the engine starts, adjust the throttle. Always operate
WARNING
WARNING

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OPERATION 45CM & 55CM
the engine at full throttle when under load. Adjust
engine speed so drum is turning between 20 - 25 RPM.
NOTE: These starting instructions are general
guidelines only. Since many engine options are
available on the manufacturer's CM mixers, consult the
ENGINE MANUAL included with this unit for specific
instructions.
ELECTRIC MOTORS - Use the proper size (3) wire
(grounded) extension cord, conforming to the National
Electric Code and Local Ordinances. DO NOT use (2)
wire extension cord. Check any extension cord
carefully for broken connectors, bare wires and
damaged insulation. DO NOT use any cord found to be
in poor condition. Make sure the extension cord is not
routed through standing water and that all the
connections are tight. Use the shortest extension cord
possible. Turn motor on.
TO STOP THE ENGINE / MOTOR
GASOLINE ENGINES - Depress grounding switch
located on the left cowl side and hold down until
engine stops completely. Consult the ENGINE
MANUAL included with this unit for specific
instructions. If the mixer is to be left unattended for
any length of time, close the fuel valve under the gas
tank.
ELECTRIC MOTORS - Turn the motor off. If the
mixer is to be left unattended for any length of time,
disconnect the power cord.
OPERATION
Start the engine / motor as previously instructed and
allow gasoline engines to reach operating temperatures.
Close the engine cowl. NEVER operate the mixer with
cowl open.
With drum operating between 20 - 25 RPM's the mixer
is now ready for the addition of the concrete mix. For
best results proceed as follows:
1. Pour the required amount of water into
drum.
2. Add the required amount of gravel.
3. Add the required amount of cement.
. Add the required amount of sand. By
adding the water and gravel first the
drum will be kept clean and a good
tumbling action will be maintained when
cement and sand will be added.
To discharge concrete, grab the drum handle firmly and
push it towards the drum to disengage. Dump drum in
desired direction. After discharge of concrete return
the drum to the desired position. To prevent accidental
discharge, make sure the dump handle lock pin is
firmly seated into tilt disc mounted on the frame.
Immediately pour in the required amount of water for
the next batch, this will clean the drum and paddles
between batches.
GENERAL MIXING INSTRUCTIONS
The total volume is 6.2 / 6.7 cubic ft. The maximum
batch size is / 5 cubic ft. depending on the type of
mix being used. A smaller batch size may be required
to give a uniformly mixed batch.
SAMPLE MIX
Volume relationship of 1:2 - 1/2:3
(cement : sand : gravel) mix. The mix volume may
vary depending on aggregate used.
Mix Volume
Cu. Ft. 2345
Cement
bags) 1/3 1/2 2/3 7/8
Water gal.) 1-3/4 2-1/2 3-1/2 4-3/4
Sand gal./
shovels) 6 9 12 15
Gravel gal./
shovels) 8121620

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OPERATION 45CM & 55CM
CLEANING
For consistent performance, long life and continued
high quality mixing of cement, thoroughly clean the
mixer inside and out at the end of each day's operation.
Drum may be scoured by 2 minute operation with
gravel and water mixture. Discharge, then hose down
drum inside and outside. Keep mixer clean.
Before cleaning, shut off the engine or motor and
disconnect the spark plug wire or electric cord to
prevent accidental starting. Spray the mixer with water
before the mix dries to remove any accumulations.
Dried mix should be scraped out as necessary. DO
NOT beat on drum with shovel, hammer or other
device to break up accumulations of dried mix, as this
will dent and damage the drum.
NE ER POUR OR SPRAY WATER ON THE
ENGINE OR MOTOR.
NE ER PUT HANDS OR ANY OBJECT INTO
THE DRUM WHILE THE ENGINE OR MOTOR
IS RUNNING.
ALWAYS DISCONNECT THE SPARK PLUG
WIRE OR ELECTRIC CORD WHEN CLEANING
INSIDE DRUM.
TOWING
Before attempting to tow this mixer, check the state
and local laws that apply to your intended route and
check the following:
1. Hitch attached to the towing vehicle
securely.
2. Towpole fully extended and bolted to mixer
securely.
3. Safety chain hooked up properly (see
illustration or decal on mixer front post).
WARNING
WARNING
INSTALLING CHAIN TO EHICLE
. Lug nuts, wheel nuts and axle mount nuts tight.
5. Drum rotated straight down, dump handle lock
pin firmly seated into the tilt disc.
6. Tires in good shape and at proper inflation
as follows:
Tire size .80 x 8 @ 60 P.S.I.
Refer to FRAME, DRUM, AND ENGINE
ASSEMBLY section of the Service/Parts Manual for
parts identification and location.
DO NOT EXCEED A TOWING SPEED OF 55
MILES/HR (90 KM/HR). FOR POOR ROAD
CONDITIONS OR INCLEMENT WEATHER,
REDUCE SPEED ACCORDINGLY.

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MAINTENANCE SCHEDULE 45CM & 55CM
A. ENGINE - Daily check the oil
levels in the engine and engine
reduction unit. The engine warranty
is OID if run without oil . Since
there are many options available on
this mixer, consult the ENGINE
MANUAL for specific
recommendation as to oil level, oil
type required and frequency of oil
changes required. For maximum
service life from the engine, follow
those recommendations.
B. WEEKLY - Grease trunnions (2)
places.
C. MONTHLY - Grease drum
spindle through grease fitting (1)
place.
YEARLY - Disassemble drum and
drum spindle and clean and repack
drum spindle bearings as follows -
Remove plug from inside drum.
Remove the cotter key and castle
nut from the drum spindle and slide
the drum of the spindle.
Remove the drum bearings, clean
thoroughly and repack with grease.
Clean spindle and drum bearing
housing and coat with grease inside.
Reassemble the drum and bearings
to the drum spindle and install the
castle nut to hold in place. Tighten
castle nut snugly to seat bearings,
then back off to the nearest slot
which aligns with the hole in the
spindle shaft, then install cotter key.
Turn drum and check that it turns
freely. Install plug and tighten
securely. Note: DO NOT allow any
sand, cement or other foreign
matter to fall into the bearing
housing during reassembly.
NOTE: Cowl removed for clarity.
Do not operate mixer with cowl
removed.
D. YEARLY - Disassemble the
wheel hubs and clean and repack
the wheel bearings with grease.
Reassemble the hubs using new
wheel seals. Tighten castle nuts
snugly then back off to the 1st slot
that aligns with the hole in the axle
spindle. Install cotter key and spin
hubs to check for binding or
excessive slop. Reinstall dust cap
and tires. DO NOT lubricate pinion
and ring gear. They will collect
abrasive materials and accelerate
wear.
Use any Grade #1 lithium base
grease for the above applications.
BELT TENSION
WEEKLY - Check drive belt for
proper tension and excessive wear.
Replace worn belt or adjust belt
tension as required. To remove and
adjust belt, loosen (do not remove)
motor base mounting bolt, lift up on
motor base, and remove belt.
Install new belt and push motor
base down until proper belt tension
is achieved. Tighten motor base
mounting bolt. Proper belt tension
is achieved when belt deflection is
1/2 inch to 3/ inch midway
between drive sheaves.

- 19 -
CALIFORNIA PROPOSITION 65 WARNING: Engine
exhaust fro this product contains che icals
known to the State of California to cause cancer,
birth defects, or other reproductive har .

Bred Tough. Born to Work.
The Way It Ought To Be.
Stone Construction Equipment, Inc.
P.O. Box 150, Honeoye, New York 14471
Phone: [phone]
Fax: [phone]
e-mail: [email protected]
www: stone-equip.com
A 100% employee-owned American manufacturer
© 1995 Stone Construction Equipment, Inc.
Printed in U.S.A.
GP1M