Stone 125CM User manual

OPERATOR MANUAL
MODELS: 125CM
REVISION: A 3/99 P/N 56391
This equipment has been designed and tested to meet the requirements of
the Machinery Safety Directive 89/392/EEC and Amendments and
therefore carries the CE Mark
CONCRETE MIXER

Discount Equipment Rental is your online resource for commercial and industrial
quality equipment sales and rentals. We sell worldwide for the brands Genie, Terex,
Stihl, JLG, Multiquip, Mayco, Stone, Diamond Products, Airman, Mustang, Power
Blanket. We have complete rental locations throughout Florida.
Locations:
West Palm Beach – 561-964-4949
Orlando – 407-291-3162
Tampa – 813-248-2848
Need parts? Check out our website at www.discount-equipment.com
Can’t find what you need? Click on this link:
http://www.discount-equipment.com/category/5443-parts/ and fill out the request form. Make
sure you have your machines model and serial number available in order to help us
get you the correct parts. One of our experienced staff members will get back to you
with a quote for the right part that your machine needs.

- 3 -
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
Capacities .................................................................................................................................... 16
Sample Mix ................................................................................................................................. 16
Towing ........................................................................................................................................ 16
Maintenance Schedule ................................................................................................................ 17
CALIFORNIA PROPOSITION 65 WARNING ........................................................................... 19
T ABLE of C ONTENTS 125CM

- -
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]
FOREW O R D

NOTE PAGE

- 6 -
TECHNICAL DATA Specifications
Stone 125CM Mixer – Specifications
Dimensions
Operating Wt.
Batch Capacity
(Bags)
Batch Capacity
(cu. ft.)
Total Volume
L x W x H
ower Source
897 lbs. (w/11hp Honda)
406.9 kg
1 1/2 - 2 bags
12 cu. ft. / .34 cu. m.
19.8 cu. ft. / .56 cu. m.
95 x 56 x 70 (in)
241.3 x 142.2 x 177.8 (cm)
2 hp / 1.5 kW Electric
6.3 hp / 5.6 kW Robin Diesel
10 hp / 7.5 kW B&S I/
11 hp / 8.2 kW Honda
125CM

- 7 -
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

- 8 -
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

- 9 -
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 INSTR CTIONS
Read all safety messages and decals in this manual and on your
machine safety signs carefrully. 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.
NDERSTAND 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.

- 10 -
HEALTH & SAFETY Safety Precautions
HOT S RFACES
 Avoid contact with hot exhaust systems and engines.
 Allow all components in the engine compartment to cool before
performing any service work.
SE COMMON SENSE WHEN HANDLING F ELS
 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

- 11 -
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 PROTECTIVE 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.

- 12 -
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 properly attach safety chains 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.

- 13 -
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 YO RSELF 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

- 1 -
OPERATION 125CM
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) 12 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 LEVELS AND L BRICATION
Be sure to check the oil levels in the engine and engine
reduction unit BEFORE starting this unit. The engine
warranty is VOID 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
S RE ENGINE SPARK PL G WIRE IS
DISCONNECTED, OR, IF ELECTRIC, THAT
THE ELECTRIC CORD IS DISCONNECTED, TO
PREVENT 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.
F EL
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 G IDELINES FO ND IN THE
SAFETY PRECA TION SECTION OF THIS
MAN AL WHENEVER 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
about (3) times. 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
WARNING
WARNING

- 15 -
OPERATION 125CM
the engine starts, adjust the throttle. Always operate
the engine at full throttle when under load. Adjust
engine speed so drum is turning between 16 - 20 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 which
you plan on using 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 stationary cowl half 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 16 - 20 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, grasp handwheel firmly with
one hand and release tilt brake by pushing up on the tilt
handle with the other. See diagram below.
To prevent accidental discharge, never release brake
without holding the handwheel firmly. Do not attempt
to grab the handwheel to stop an accidental discharge,
serious injury could result. Always make sure that the
brake is fully engaged after discharge of concrete and
before reloading the drum.
NOTE: When servicing brake mechanism, bolt A
should be tightened so that approximately 17 - 18
pounds of force is required to release the brake. This
will prevent accidental discharge due to vibration.
CAPACITIES
* Maximum batch size depends on mix and type of
aggregate used.
125CM
2 Bag
Total Drum 20 cu. ft.
Volume
Max Batch 12 cu. ft.
Size*

- 16 -
OPERATION 125CM
SAMPLE MIX
Volume relationship of 1:2 - 1/2:3
(cement : sand : gravel) mix. The mix volume may
vary depending on aggregate used.
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.
NEVER PO R OR SPRAY WATER ON THE
ENGINE OR MOTOR.
NEVER P T HANDS OR ANY OBJECT INTO
THE DR M WHILE THE ENGINE OR MOTOR
IS R NNING.
WARNING
WARNING
ALWAYS DISCONNECT THE SPARK PL G
WIRE OR ELECTRIC CORD WHEN CLEANING
INSIDE DR M.
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. Tow pole fully extended and bolted to mixer
securely.
3. Safety chain hooked up properly (see
illustration or decal on mixer front post).
INSTALLING CHAIN TO VEHICLE
. 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 6.50 x 13 @ 35 P.S.I.
Refer to FRAME AND DRUM ASSEMBLY and
AXLE 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,
RED CE SPEED ACCORDINGLY.
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

- 17 -
MAINTENANCE SCHEDULE 125CM
A. ENGINE - Daily check the oil
levels in the engine and engine
reduction unit. The engine
warranty is VOID if run without
oil . Since there are many
options available on this mixer,
consult the ENGINE MANUAL
for specific recommendations 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 idler shaft
pillow block bearings on electric
drive models.
C. WEEKLY - Lubricate chain and
sprockets on chain drive models
with a few drips of SAE 30
motor oil or any spray chain
lube.
D. MONTHLY - Grease trunnions
(2) places and drum spindle (2)
places.
E. YEARLY - Repack ( ) tapered
roller bearings in wheel hubs
and replace wheel seals. Install
washer and nut. Torque to 20
ft. lbs. back off one turn, torque
to 7 ft. lbs. back off to first slot
in nut and insert cotter key.
F. DO NOT lubricate pinion and
ring gear. They will collect
abrasive materials and
accelerate wear.
NOTE: Cowl removed for clarity.
Do not operate mixer with cowl
removed.
Lubricate diesel gearbox with
SAE30W oil as needed.
Use any Grade #1 lithium base
grease for the above applications.
*See Exploded Views in Service/
Parts Manual for exact location.

Discount Equipment Rental is your online resource for commercial and industrial
quality equipment sales and rentals. We sell worldwide for the brands Genie, Terex,
Stihl, JLG, Multiquip, Mayco, Stone, Diamond Products, Airman, Mustang, Power
Blanket. We have complete rental locations throughout Florida.
Locations:
West Palm Beach – 561-964-4949
Orlando – 407-291-3162
Tampa – 813-248-2848
Need parts? Check out our website at www.discount-equipment.com
Can’t find what you need? Click on this link:
http://www.discount-equipment.com/category/5443-parts/ and fill out the request form. Make
sure you have your machines model and serial number available in order to help us
get you the correct parts. One of our experienced staff members will get back to you
with a quote for the right part that your machine needs.