MBW R270R User manual

Operator's
Safety
and
Service
Manual
RAMMERS
L12219 / 06 01
MBW Inc 2001
Printed in U S A
MBW INC
250 HARTFORD ROAD  PO BOX 440
SLINGER, WI 53086-0440
PHONE: [phone]  FAX [phone]
MBW CORPORATE INTERNET ADDRESS
E-MAIL: [e-mail] WEB SITE: www.mbw.com
IN ENGLAND:
MBW (UK) LIMITED
Bradley old Trading Estate Unit 6
Radcliffe Moor Road
Bolton BL2 6RT
Phone: [phone]  AX: 01204 387797
It is the OWNER'S RESPONSIBILITY to communicate information on the
SAFE USE and OPERATION of this machine to the operators!


i
TABLE OF CONTENTS
SA ETY PRECAUTIONS 1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SA ETY NOTICE & DECALS 2. . . . . . . . . . . . . . . . . . . . . . . . .
SA ETY DECAL LOCATIONS 5. . . . . . . . . . . . . . . . . . . . . . . .
WARRANTY 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MBW WAREHOUSE LOCATIONS 12. . . . . . . . . . . . . . . . . . . .
RAMMER SPECI ICATIONS 13. . . . . . . . . . . . . . . . . . . . . . . . .
SERIAL NUMBER LOCATION 14. . . . . . . . . . . . . . . . . . . . . . . .
PARTS ORDERING PROCEDURE 14. . . . . . . . . . . . . . . . . . . .
PRE-OPERATING INSTRUCTIONS 15. . . . . . . . . . . . . . . . . .
OPERATING INSTRUCTIONS 17. . . . . . . . . . . . . . . . . . . . . . . .
PERIODIC MAINTENANCE 18. . . . . . . . . . . . . . . . . . . . . . . . . .
DISASSEMBLY 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLY 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
KITS & TORQUE CHART 25. . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT AND TOLERANCE CHART 26. . . . . . . . . . .
270, 450 & 451 GEARBOX 27. . . . . . . . . . . . . . . . . . . . . . . . . .
374 & 376 GEARBOX 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
270, 450 & 451 LOWER SYSTEM 31. . . . . . . . . . . . . . . . . . . . .
374 & 376 LOWER SYSTEM 33. . . . . . . . . . . . . . . . . . . . . . . . .
270, 450 & 451 HANDLE 35. . . . . . . . . . . . . . . . . . . . . . . . . . . .
STANDARD HANDLE (OIL INJECTED RAMMERS) 37. . . . . .
374 & 376 HANDLE 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LO-PRO ILE HANDLE 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LO-PRO ILE HANDLE (OIL INJECTED RAMMERS) 43. . . .
AIRAMMER HANDLE 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ROBIN ENGINE ASSEMBLY 47. . . . . . . . . . . . . . . . . . . . . . . . .
ROBIN OIL INJECTED ENGINE ASSEMBLY 49. . . . . . . . . . .
LO-PRO ILE ROBIN ENGINE ASSEMBLY 51. . . . . . . . . . . .
AIRAMMER MOTOR ASSEMBLY 53. . . . . . . . . . . . . . . . . . . . .

1
SAFETY PRECAUTIONS
READ AND STUDY THE FOLLOWING SAFETY INFORMATION BEFORE
ATTEMPTING TO OPERATE THIS EQUIPMENT IN ADDITION, ENSURE THAT EVERY
INDIVIDUAL WHO OPERATES OR WORKS WITH THIS EQUIPMENT IS FAMILIAR
WITH THESE SAFETY PRECAUTIONS
WARNING - LETHAL EXHAUST GAS!
An internal combustion engine discharges carbon monoxide, a poisonous, odorless
invisible gas. Death or serious illness may result if inhaled. Operate only in an area with
good ventilation, NEVER IN A CONFINED AREA!
WARNING - DANGEROUS FUELS!
Use extreme caution when storing, handling and using fuels - they are highly volatile and
explosive in vapor state. Do not add fuel while engine is running. Stop and cool the engine
before adding fuel. DO NOT SMOKE!
SAFETY GUARDS
It is the owner's responsibility to ensure ALL GUARDS AND SHIELDS remain in place.
IGNITION SYSTEMS
Breakerless, magneto and battery ignition systems CAN CAUSE SEVERE ELECTRICAL
SHOCKS. Avoid contacting these units or their wiring.
SAFE DRESS
DO NOT WEAR loose clothing, rings, wristwatches, etc., near machinery.
NOISE PROTECTION
Wear O.S.H.A. specified hearing protection devices.
FOOT PROTECTION
Wear O.S.H.A. specified steel tip safety shoes.
HEAD PROTECTION
Wear O.S.H.A. specified safety helmets.
EYE PROTECTION
Wear O.S.H.A. specified eye shields, safety glasses, and sweat bands.
OPERATOR
Keep children and bystanders off and away from the equipment.
REFERENCES
or details on safety rules and regulations in the United States, contact your local
Occupational Safety and Health Administration (O.S.H.A.) office. Equipment operated in
other countries must be operated and serviced in accordance and compliance with any
and all safety requirements of that country.The publication of these safety precautions is
done for your information. MBW Inc. does not by the publication of these precautions,
imply or in any way represent that these are the sum of all dangers present near MBW
equipment. If you are operating MBW Inc. equipment, it is your responsibility to insure that
such operation is in full accordance with all applicable safety requirements and codes. All
requirements of the United States ederal Occupational Safety and Healthy Administration
Act must be met when operated in areas that are under the jurisdiction of that United States
Department.

2
SAFETY NOTICE & DECALS (EC10D ONLY)
IMPORTANT NOTICE
The SAFETY ALERT SYMBOL" is used to call attention to items or operations that may be
dangerous to machine operators or others working with this equipment. The symbol can be
found throughout this manual and on the unit itself. Please read these messages carefully.
READ SAFETY DECALS CAREFULLY
Carefully read and follow all safety decals. Keep them in good condition. If decals become
damaged, replace as required. If repainting, REPLACE ALL decals. Decal Kits are
available from authorized MBW Distributors.USE DECAL SET 12101
#01436, ON UEL TANK
(GASOLINE ONLY)
#13483, ON UEL TANK
(GASOLINE ONLY)
01067
UEL MIXTURE
(After break in period)
Mix 50 parts gasoline to 1
part 2-cycle engine oil
(50:1).
#01067, ON UEL TANK
OPERATING
INSTRUCTIONS
01436
1. Open fuel valve.
2. Choke engine. A warm engine may not
need to be choked.
3. Set throttle at idle position.
4. Pull starter rope.
5. After starting: open choke.
6. or normal usage set throttle fully open.
7. To stop: Return throttle to idle position,
press Stop" button, close fuel valve.
13483
Read the Operating Instructions before
operating this piece of equipment.
Keep unauthorized and untrained
people away from this equipment.
ROTATING & MOVING PARTS! Make
sure all guards and safety devices are in
place.
DO NOT RUN this machine in an enĆ
closed area. The engine produces carĆ
bon monoxide, a POISONOUS GAS
Wear approved hearing protection, foot
protection, eye protection and head
protection.
SHUT OFF the engine before servicing,
cleaning or adding fuel.
Failure to comply could result in seriĆ
ous bodily injury
CAUTION
#14770, ON HANDLE
(RATCHET STYLE
THROTTLE ONLY)
#01060, ON AIR CLEANER
01064
B
#01326, SPRINGBOX COVER
AIR CLEANER INSTRUCTIONS
CLEAN ELEMENT DAILY. MORE O TEN UNDER DUSTY CONDITIONS.
TAP ELEMENT LIGHTLY ON A LAT SUR ACE - I DUST DOES NOT
DROP O EASILY OR I ELEMENT IS BENT OR CRUSHED...................
REPLACE IT!
WARNING: DO NOT OPERATE ENGINE WITHOUT AIR CLEANER
ELEMENT - INTERNAL DAMAGE WILL RESULT!
06079
#06079, ON AIR CLEANER
#01064 ON ENGINE
Machine is top heavy Attach proper
safety chains to this bar when lifting.
13531
Approximate weight: 160 lbs. (73 kg)
Model R540 only: 205 lbs. (93 kg)
WARNING
#13531 ON HANDLE
SHROUD

3
SAFETY NOTICE & DECALS (EC12D ONLY)
IMPORTANT NOTICE
The SAFETY ALERT SYMBOL" is used to call attention to items or operations that may be
dangerous to machine operators or others working with this equipment. The symbol can be
found throughout this manual and on the unit itself. Please read these messages carefully.
READ SAFETY DECALS CAREFULLY
Carefully read and follow all safety decals. Keep them in good condition. If decals become
damaged, replace as required. If repainting, REPLACE ALL decals. Decal Kits are
available from authorized MBW Distributors.USE DECAL SET 14768
#13483, ON UEL TANK
(GASOLINE ONLY)
13483
Read the Operating Instructions before
operating this piece of equipment.
Keep unauthorized and untrained
people away from this equipment.
ROTATING & MOVING PARTS! Make
sure all guards and safety devices are in
place.
DO NOT RUN this machine in an enĆ
closed area. The engine produces carĆ
bon monoxide, a POISONOUS GAS
Wear approved hearing protection, foot
protection, eye protection and head
protection.
SHUT OFF the engine before servicing,
cleaning or adding fuel.
Failure to comply could result in seriĆ
ous bodily injury
CAUTION
UNLEADED
GASOLINE
14781
#14781, ON UEL TANK
#14774, ON OIL TANK
CAP
14770
T
H
R
O
T
T
L
EIDLE
RUN
#14770, ON HANDLE
(RATCHET STYLE
THROTTLE ONLY)
AIR CLEANER INSTRUCTIONS
CLEAN ELEMENT DAILY. MORE O TEN UNDER DUSTY CONDITIONS.
TAP ELEMENT LIGHTLY ON A LAT SUR ACE - I DUST DOES NOT
DROP O EASILY OR I ELEMENT IS BENT OR CRUSHED...................
REPLACE IT!
WARNING: DO NOT OPERATE ENGINE WITHOUT AIR CLEANER
ELEMENT - INTERNAL DAMAGE WILL RESULT!
06079
#06079, ON AIR CLEANER
01064
B
#01064 ON ENGINE
#01326, SPRINGBOX COVER
Machine is top heavy Attach proper
safety chains to this bar when lifting.
14769
Approximate weight: 160 lbs. (73 kg)
WARNING
#14769 ON HANDLE
OPERATING
INSTRUCTIONS
14773
1. Check fuel level
2. Open fuel valve.
3. Set throttle at idle position.
4. Choke engine. A warm engine may not need
to be choked.
5. Pull starter rope
6. After starting, open choke gradually and let
engine warm up at idle.
7. To start compacting: open throttle fully.
8. To stop: return throttle to idle and allow engine
to run for a few minutes before turning off.
9. Turn engine switch to off and close fuel valve.
#14773 ON UEL TANK
(GASOLINE ONLY)

4
SAFETY NOTICE & DECALS (AIRAMMER)
IMPORTANT NOTICE
The SAFETY ALERT SYMBOL" is used to call attention to items or operations that may be
dangerous to machine operators or others working with this equipment. The symbol can be
found throughout this manual and on the unit itself. Please read these messages carefully.
READ SAFETY DECALS CAREFULLY
Carefully read and follow all safety decals. Keep them in good condition. If decals become
damaged, replace as required. If repainting, REPLACE ALL decals. Decal Kits are
available from authorized MBW Distributors.USE DECAL SET 12101
#01326, SPRINGBOX
COVER
#12203, ON VALVE BLOCK
(AIRAMMER ONLY)
12203
Read the Operating Instructions before
operating this piece of equipment.
Keep unauthorized and untrained
people away from this equipment.
ROTATING & MOVING PARTS! Make
sure all guards and safety devices are in
place.
Wear approved hearing protection, foot
protection, eye protection and head
protection.
SHUT OFF the motor before servicing or
cleaning.
Failure to comply could result in seriĆ
ous bodily injury
CAUTION
OPERATING
INSTRUCTIONS
13534
1. Connect air supply hose. Use Safety
Clips
2. Open air supply hose valve on compressor.
3. Squeeze actuator handle to start machine.
4. Check Airammer pressure gage. Needle
should be in green area.
5. On uneven areas, pushing down on handle
will aid climbing ability. Do not bear down
with excessive weight on machine
6. Release actuator handle to stop.
#13534, ON VALVE BLOCK
(AIRAMMER ONLY)
#14769, ON HANDLE
Machine is top heavy Attach proper
safety chains to this bar when lifting.
14769
Approximate weight: 160 lbs. (73 kg)
WARNING
AIRAMMER12213
®
TO START:
SQUEEZE ACTUATOR
HANDLE
TO STOP: RELEASE 13538
U S PATENT 5,340,233
13535
#12213 ON VALVE BLOCK
#13538 ON ACTUATOR HANDLE
#13535 ON VALVE BLOCK

5
SAFETY DECAL LOCATIONS (EC10D ONLY)
#01436, ON UEL TANK
#01067, ON UEL TANK
OPERATING
INSTRUCTIONS
01436
1. Open fuel valve.
2. Choke engine. A warm engine may not
need to be choked.
3. Set throttle at idle position.
4. Pull starter rope.
5. After starting: open choke.
6. or normal usage set throttle fully open.
7. To stop: Return throttle to idle position,
press Stop" button, close fuel valve.
#13483, ON UEL TANK
(GASOLINE ONLY)
13483
Read the Operating Instructions before operating this
piece of equipment.
Keep unauthorized and untrained people away from this
equipment.
ROTATING & MOVING PARTS! Make sure all guards and
safety devices are in place.
DO NOT RUN this machine in an enclosed area. The
engine produces carbon monoxide, a POISONOUS GAS
Wear approved hearing protection, foot protection, eye
protection and head protection.
SHUT OFF the engine before servicing, cleaning or addĆ
ing fuel.
Failure to comply could result in serious bodily injury
CAUTION
Machine is top heavy Attach proper safety chains to this bar
when lifting.
13531
Approximate weight: 160 lbs. (73 kg)
Model R540 only: 205 lbs. (93 kg)
WARNING
#13531 ON HANDLE
01067
UEL MIXTURE
(After break in period)
Mix 50 parts unleaded
gasoline to 1 part
2-stroke engine oil
(50:1).
14770
T
H
R
O
T
T
L
EIDLE
RUN
#14770, ON HANDLE
(RATCHET STYLE
THROTTLE ONLY)

6
SAFETY DECAL LOCATIONS (CONT )
AIR CLEANER INSTRUCTIONS
CLEAN ELEMENT DAILY. MORE O TEN UNDER DUSTY CONĆ
DITIONS. TAP ELEMENT LIGHTLY ON A LAT SUR ACE - I
DUST DOES NOT DROP O EASILY OR I ELEMENT IS BENT
OR CRUSHED................... REPLACE IT!
WARNING: DO NOT OPERATE ENGINE WITHOUT AIR
CLEANER
ELEMENT - INTERNAL DAMAGE WILL RESULT! 06079
#06079, ON AIR CLEANER
01064
B
#01064 ON ENGINE
#01060, ON AIR CLEANER
#01326 SPRINGBOX COVER

7
SAFETY DECAL LOCATIONS (EC12D ONLY)
#01436, ON UEL TANK
#14781, ON UEL TANK
OPERATING
INSTRUCTIONS
01436
1. Open fuel valve.
2. Choke engine. A warm engine may not
need to be choked.
3. Set throttle at idle position.
4. Pull starter rope.
5. After starting: open choke.
6. or normal usage set throttle fully open.
7. To stop: Return throttle to idle position,
press Stop" button, close fuel valve.
#13483, ON UEL TANK
(GASOLINE ONLY)
13483
Read the Operating Instructions before operating this
piece of equipment.
Keep unauthorized and untrained people away from this
equipment.
ROTATING & MOVING PARTS! Make sure all guards and
safety devices are in place.
DO NOT RUN this machine in an enclosed area. The
engine produces carbon monoxide, a POISONOUS GAS
Wear approved hearing protection, foot protection, eye
protection and head protection.
SHUT OFF the engine before servicing, cleaning or addĆ
ing fuel.
Failure to comply could result in serious bodily injury
CAUTION
#01064, ON ENGINE
Machine is top heavy Attach proper
safety chains to this bar when lifting.
14769
Approximate weight: 160 lbs. (73 kg)
WARNING
#14769 ON HANDLE
UNLEADED
GASOLINE
14781
01064
B

8
SAFETY DECAL LOCATIONS (CONT )
AIR CLEANER INSTRUCTIONS
CLEAN ELEMENT DAILY. MORE O TEN UNDER DUSTY CONĆ
DITIONS. TAP ELEMENT LIGHTLY ON A LAT SUR ACE - I
DUST DOES NOT DROP O EASILY OR I ELEMENT IS BENT
OR CRUSHED................... REPLACE IT!
WARNING: DO NOT OPERATE ENGINE WITHOUT AIR
CLEANER
ELEMENT - INTERNAL DAMAGE WILL RESULT! 06079
#06079, ON AIR CLEANER
#14770, ON HANDLE
(RATCHET STYLE
THROTTLE ONLY)
#01326, SPRINGBOX COVER
14770
T
H
R
O
T
T
L
EIDLE
RUN
#14774, ON OIL TANK CAP

9
SAFETY DECAL LOCATIONS (AIRAMMER)
#01326, SPRINGBOX COVER
Machine is top heavy Attach proper
safety chains to this bar when lifting.
14769
Approximate weight: 160 lbs. (73 kg)
WARNING
#14769 ON HANDLE
OPERATING
INSTRUCTIONS
13534
1. Connect air supply hose. Use Safety
Clips
2. Open air supply hose valve on compressor.
3. Squeeze actuator handle to start machine.
4. Check Airammer pressure gage. Needle
should be in green area.
5. On uneven areas, pushing down on handle
will aid climbing ability. Do not bear down
with excessive weight on machine
6. Release actuator handle to stop.
#13534, ON VALVE BLOCK
(AIRAMMER ONLY)
#12203, ON VALVE BLOCK
(AIRAMMER ONLY)
12203
Read the Operating Instructions before
operating this piece of equipment.
Keep unauthorized and untrained
people away from this equipment.
ROTATING & MOVING PARTS! Make
sure all guards and safety devices are in
place.
Wear approved hearing protection, foot
protection, eye protection and head
protection.
SHUT OFF the motor before servicing or
cleaning.
Failure to comply could result in seriĆ
ous bodily injury
CAUTION

10
SAFETY DECAL LOCATIONS (CONT )
AIRAMMER12213
®
#12213 ON VALVE BLOCK
TO START:
SQUEEZE ACTUATOR
HANDLE
TO STOP: RELEASE 13538
#13538 ON ACTUATOR HANDLE
U S PATENT 5,340,233
13535
#13535 ON VALVE BLOCK

11
WARRANTY
WARRANTY
THIS IS YOUR WARRANTY - PLEASE READ AND SAVE
1. MBW INC, Slinger Wisconsin, warrants each new machine against defects in material and workmanship
under normal use and service for a period of six (6) months. This warranty commences the first day the
machine is sold, assigned to a rental fleet, or otherwise put to first use.
2. The obligation under this warranty is limited to the replacement or repair of parts and/or machine at MBW
INC factory branches or at authorized MBW INC Distributors.
3. Machines altered or modified without MBW INC written consent voids this warranty. Misuse, negligence,
accidents or the operation of machines in any way other than recommended by MBW INC will void this
warranty. This warranty shall not apply to machines repaired by other than MBW INC factory branches or
authorized MBW INC Distributors.
4. This warranty includes labor on all MBW INC products. Labor must be performed at an authorized MBW INC
Distributor.
5. The cost of transportation and other expenses connected therewith are not covered by this warranty.
6. Written authorization for the return of merchandise under warranty must be obtained from MBW INC,
Slinger, Wisconsin. In England: MBW (UK) LIMITED, Bradley old Trading Estate Unit 6, Radcliffe Moor
Road, Bolton BL2 6RT.
7. MBW INC reserves the right to inspect and render final decision on each warranty case.
8. MBW INC reserves the right to improve or make product changes without incurring any obligation to
update, refit, or install the same on machines previously sold.
9. MBW INC is not responsible for any liability or damage or injury directly or indirectly from design, material or
operation of its products.
10. Warranty card must be returned to MBW INC, P.O. Box 440, Slinger, Wisconsin 53086-0440, within 10 days
after purchase, assignment to a rental fleet, or first use. In England: MBW (UK) LIMITED, Bradley old
Trading Estate Unit 6, Radcliffe Moor Road, Bolton BL2 6RT. ailure to return warranty card as specified
renders the warranty null and void.
11. Requests for warranty must be submitted in writing within 30 days after machine failure to MBW INC, P.O.
Box 440, Slinger, Wisconsin 53086-0440. In England: MBW (UK) LIMITED, Bradley old Trading Estate
Unit 6, Radcliffe Moor Road, Bolton BL2 6RT.
12. THE OREGOING WARRANTY IS EXPRESSLY IN LIEU O ALL OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING THE WARRANTIES O MERCHANTABILITY AND ITNESS OR USE, AND O ALL
OTHER OBLIGATION OR LIABILITIES ON OUR PART, AND WE NEITHER ASSUME NOR AUTHORIZE ANY
OTHER PERSON TO ASSUME OR US ANY OTHER LIABILITY OR WARRANTY IN CONNECTION WITH
THE SALE OR SERVICE O ANY O OUR PRODUCTS. LIKEWISE, THIS WARRANTY SHALL NOT APPLY
WITH RESPECT TO ENGINES, MOTORS AND OTHER COMPONENT PARTS PRODUCED BY OTHER
MANU ACTURERS AND USED ON MBW PRODUCTS, BUT SUCH ITEMS SHALL HAVE SUCH
WARRANTIES AS MAY BE PROVIDED BY THE MANU ACTURER THEREO .
MBW INC
250 HARTFORD ROAD  PO BOX 440
SLINGER, WI 53086-0440
PHONE: [phone]  FAX [phone]
MBW CORPORATE INTERNET ADDRESS
E-MAIL: [e-mail] WEB SITE: www.mbw.com
IN ENGLAND:
MBW (UK) LIMITED
Bradley old Trading Estate Unit 6
Radcliffe Moor Road
Bolton BL2 6RT
Phone: [phone]  AX: 01204 387797


12
MBW WAREHOUSE LOCATIONS
is at your service
MBW Inc. has established a network of reputable Distributors with trained mechanics and full facilities
for maintenance and rebuilding, and to carry an adequate parts stock in all areas of the country. Their
sales engineers are available for professional consultation. If you cannot locate an MBW Inc. Distributor
in your area, contact one of our Sales Branches or MBW Inc. The locations and phone numbers of the
Sales Branches are listed below.
Remember - you own the best If repairs are needed use only MBW Inc parts purchased from
Authorized MBW Inc Distributors
Sales Branches:
1. MBW Inc.
250 Hartford Rd.
P.O. Box 440
Slinger, WI 53086Ć0440
Phone: (262) 644Ć5234
AX: [phone]
2. MBW Inc.
2341 Pomona Rincon Rd.
Suite 106
Corona, CA 92880
Phone: (714) 272Ć9989
AX: [phone]
Great Britain





1
2
3
3. MBW (UK) LIMITED
Bradley old Trading Estate Unit 6
Radcliffe Moor Rd.
Bolton BL2 6RT
Phone: [phone]
AX: 01204 387797
E-MAIL ON THE WORLD WIDE WEB [email protected]
WEB SITE ON THE INTERNET www.mbw.com


13
SPECIFICATIONS
R270R R451RR270ROI R376R
GASOLINE POWERED RAMMERS: Robin EC10D, and Robin EC12, 4 hp (3kW)
UNITS R270R R270ROI R374R R376R R450R R451R
Operating Weight lbs (kg) 142 (64) 160 (73) 155 (70) 158 (72) 142 (64) 148 (67)
Height in (cm) 45 (114) 45 (114) 45Ć52 (114Ć132) 45Ć52 (114Ć132) 45 (114) 45 (114)
Width in (cm) 17 (43) 17 (43) 17 (43) 17 (43) 17 (43) 17 (43)
Length in (cm) 25.5 (65) 25.5 (65) 25.5 (65) 25.5 (65) 25.5 (65) 25.5 (65)
Shoe (W X L) in
()
11 x 13
(28 33)
11 x 13
(28 33)
4 x 18
(10 6)
6 x 18
(1 6)
11 x 13
(28 33)
13 x 15
(33 38)
Shoe
(W
X
L)
in
(cm)
11
x
13
(28 x 33)
11
x
13
(28 x 33)
4
x
18
(10 x 46)
6
x
18
(15 x 46)
11
x
13
(28 x 33)
13
x
15
(33 x 38)
Compaction orce lbf (kN)/blow 3400 (15.1) 3400 (15.1) 4000 (17.8) 4050 (18) 4500 (20) 4550 (20.3)
Percussion Rate blows/minute 600Ć650 600Ć650 550-600 550-600 600Ć650 600Ć650
Travel Speed ft/min (m/min) 55 (16.8) 55 (16.8) 50 (15.3) 50 (15.3) 60 (18.3) 60 (18.3)
Compaction Depth in (cm) 22 (56) 22 (56) 24 (61) 23 (58) 24 (61) 24 (61)
Compaction Area sqft/h (sqm/h) 3025 (280) 3025 (280) 1000 (93) 1500 (139) 3300 (307) 3900 (362)
Engine Speed rpm 4300 4400 4000 4000 4400 4400
uel Capacity qts (L) 2.5 (2.4) 2.5 (2.4) 2.5 (2.4) 2.5 (2.4) 2.5 (2.4) 2.5 (2.4)
Oil Tank Capacity pints (L) N/A 1 (.47) N/A N/A N/A N/A
PNEUMATIC POWERED RAMMERS: TCS 66V, 4hp (3kW)
Operating Weight lbs (kg) 125 (57) N/A N/A N/A 125 (57) 130 (59)
Percussion Rate blows/minute 650 N/A N/A N/A 650 650
Travel Speed ft/min (m/min) 60 (18.3) N/A N/A N/A 60 (18.3) 60 (18.3)
Compaction Area sqft/h (sqm/h) 3300 (307) N/A N/A N/A 3300 (307) 3900 (362)
Air Requirement cfm / psi 75 / 110 N/A N/A N/A 75 / 110 75 / 110
Operating Speed rpm 4500 N/A N/A N/A 4500 4500

14
SERIAL NUMBER LOCATION
RAMMER SERIAL NUMBER
1. Located on the top of the gearbox on the side
next to the filler plug.
2. The serial number is also stamped on the top
of the gearbox in front of the breather boss.
(Write Serial Number in box.)
PARTS ORDERING PROCEDURE
The Warranty is stated in this book on page 4. Failure to return Warranty Registration Card renders the
Warranty null and void
An Operating Instructions and Parts Catalog for the engine is also furnished. Engine Parts may be ordered from
any authorized dealer. Refer to the Engine Operating Instructions and Parts Catalog for exploded view and parts
identifications.
PARTS ORDERING:
MBW Inc parts are available worldwide and must be ordered through your local MBW Inc Distributor. If you
cannot locate an MBW Inc Distributor in your area, refer to page 5 of this Manual, locate the MBW Inc Sales
Branch nearest you and call for assistance.
ALWAYS INCLUDE:
1. Model and Serial Number of Machine when ordering MBW Parts.
2. Engine Model and Serial Number when ordering Engine Components.
3. Item Part Number, Description and Quantity.
4. Company Name, Address, Zip Code, and Purchase Order Number.
5. Preferred method of shipping.
REMEMBER - you own the best If repairs are needed use only MBW Inc parts purchased from Authorized
MBW Inc Distributors

15
PRE-OPERATING INSTRUCTIONS
GASOLINE POWERED RAMMERS WITH ROBIN EC10 ENGINES ONLY:
FUEL SUPPLY - The gasoline powered engines on MBW Inc rammers use an oilĆgasoline mixture. or a
break in period of 8 hours, use a 20:1 gasoline to oil mixture. After breakĆin, use a 50:1 mixture. To obtain a 50:1
mixture, thoroughly mix 3/4 pt (355 ml) of a good grade of 2Ćcycle oil with 5 gal (19 L) of clean, fresh, Unleaded
gasoline in a clean, separate container.
NOTE: After breakĆin operation, engine exhaust should be clean (NO SMOKE)
Use of 4Ćcycle Motor Oils or Leaded Gasoline may cause varnishing or spark plug fouling
AIR CLEANER - Check to ensure element is in good condition and properly installed.
OIL LEVEL - Check the Governor Chamber oil level by removing the Dip Stick. The oil mark should be about
5/16 in (8 mm) from the bottom of the Dip Stick. Add oil if required. or more information see Lubrication" under
PERIODIC MAINTENANCE," or the Robin EC10D Manual INSTRUCTIONS FOR USE".
FUEL FILTER - If clogged or damaged, replace.
GASOLINE POWERED RAMMERS WITH ROBIN EC12 ENGINES ONLY:
FUEL SUPPLY - The oil injected engines on gasoline powered MBW Inc rammers use an unleaded gasoline
mixture of 32:1 for a break in period After running the machine for a time, check to see if the engine is consuming
2Ćcycle oil from the oil tank. If the engine is consuming oil from the tank, you can use just unleaded gasoline in the
fuel tank.
NOTE: After breakĆin operation, engine exhaust should be clean (NO SMOKE)
Use of 4Ćcycle Motor Oils or Leaded Gasoline may cause varnishing or spark plug fouling
AIR CLEANER - Check to ensure element is in good condition and properly installed.
OIL LEVEL - Check the level of 2Ćcycle oil in the oil tank before starting. If required, add a good grade of
exclusive 2Ćcycle oil. or more information see Lubrication" under PERIODIC MAINTENANCE," or the Robin
EC12 Manual INSTRUCTIONS FOR USE "
OIL SENSOR - Check to ensure wire leads are connected. Make sure the mounting nut is tight. If sensor is
damaged replace.
FUEL FILTER - If clogged or damaged, replace.
Make sure hands, feet and clothing are at a safe distance from any moveable parts prior to starting, Also,
before starting, review related Safety Precautions listed on Page 1

16
PNEUMATIC POWERED RAMMERS:
GOVERNOR - Do not disassemble the governor. The governor is guaranteed by the motor manufacturer for
the life of the motor if it is not abused. Tampering with the governor voids this warranty and may result in serious
injury or death.
LUBRICATION - Oil lubrication must be supplied to the pneumatic motor at all times during operation.
Operating the rammer without lubrication will cause premature wear and ultimately failure of the motor. Do not install
a lubricator on the rammer handle. Air lubrication system should supply 1/2 oz oil for every 8 hours of use
COMPRESSED AIR SUPPLY - All MBW AIRAMMERS require a compressed air supply of at least 85 cfm
(cubic feet per minute) at 110 psi (pounds per square inch). The air supply must be provided on a continuous basis.
(i.e. Check the compressor pressure gauge while the rammer is running). Peak compaction performance will not
be achieved if the air supply is inadequate.
MOTOR ICING - If the rammer is operated for extended periods of time or is operated in high humidity
conditions, frost will form on the motor. This is normal and will not harm the motor. If the motor should freeze up"
from icing, allow it to thaw before continuing usage. Ensure that there is adequate oil supply to the motor.
Make sure hands, feet and clothing are at a safe distance from any moveable parts prior to starting, Also,
before starting, review related Safety Precautions listed on Page 1

17
OPERATING INSTRUCTIONS
GASOLINE POWERED MODELS:
STARTING
or detailed instructions refer to EC10D or EC12 (oil
injected) Engine Manual.
1. Open fuel valve.
2. Choke engine. When starting a warm engine,
choke may not be required.
3. Place thottle at idle position.
4. If engine is equipped with a switch, turn to the ON"
position.
5. Pull starter rope.
6. After the engine starts, open the choke. Let engine
warm up in the idle position for approximately one
minute.
If the engine does not start after five or six pulls,
check the spark plug for carbon deposits
OPERATING
1. After the engine warms up, open the throttle. or
normal operation, open the throttle fully.
2. On uneven areas, pushing down on the handle will
aid climbing ability.
Do not bear down (Body Weight Of Operator) on
the machine
3. After three passes, the rammer may have more
kick back. This is an indication that ideal
compaction is being reached.
STOPPING
1. Whenever possible, allow the engine to idle before
stopping.
2. Move the throttle to the idle position.
3. Press the stop button on the side of the blower
housing, or turn the switch on the blower housing
to O "
4. Close fuel valve.
STOP THE ENGINE BEFORE:
Adding fuel or oil
Leaving equipment unattended, even if only for
a minute
Making any repairs or adjustments
PNEUMATIC POWERED MODELS:
STARTING
1. Connect the air compressor supply hose to the
airammer. USE SAFETY CLIPS
2. Open the air supply hose valve on the compressor.
3. Squeeze the Airammer actuator handle.
OPERATING
1. Squeeze the Airammer actuator handle and check
the Airammer pressure gage. If the needle is not in
the green area check the compressor operation
and make sure there are no kinks in the air hose.
2. On uneven areas, pushing down on the handle will
aid climbing ability.
Do not bear down (Body Weight Of Operator) on
the machine
3. After three passes, the rammer may have more
kick back. This is an indication that ideal
compaction is being reached.
STOPPING
1. Release the Airammer actuator handle. Close the
air supply valve on the compressor. Squeeze the
Airammer actuator handle to depressurize the air
supply hose before disconnecting the air hose.
STOP THE MOTOR BEFORE:
Leaving equipment unattended, even if only for
a minute
Making any repairs or adjustments

18
PERIODIC MAINTENANCE
GASOLINE ENGINES:
AIR CLEANER
The rammer uses a dry type air cleaner element. Clean
the element by removing it and tapping it lightly on a flat
surface. Keep tapping until no dust comes off. The
element should be replaced if dust does not drop off
easily or if element becomes damaged.
NOTE: Do not wash the element in any liquid or blow
dust off with compressed air. Do not tap element on a
sharp corner, it may damage the seal.
SPARK PLUG
Remove and check the spark plug regularly. Clean or
replace if necessary. Set the spark plug gap according
to the tuneĆup specifications section. Reinstall the plug
and torque to 15Ć20 ft. lbs. (21Ć28 Nm).
MEASURE GAP
WITH EELER
GAUGE
ENGINE LUBRICATION: Robin EC10
1. The 2Ćcycle engine is lubricated by the oilĆgasoline
mixture. Use a 20:1 gas to oil mixture for a breakĆin
period of 8 hours. After breakĆin, use a 50:1 gas to
oil mixture. or a 50:1 mixture, mix 3/4 pint (12
ounces, 355 ml) of 2-cycle motor oil with 5 gallons
(19L) of lead-free gasoline.
2. The Robin 2Ćcycle engine also has oil in a separate
governor crankcase.
a. Remove the governor chamber dipstick which
is behind the muffler.
b. The oil level should be at the upper level which
is 0.31 in. (8mm) up from the bottom of the dipĆ
stick.
c. If oil is needed, add a good grade of Service
SF" SAE 10W-30 Motor Oil.
d. Also see the Robin Operating Instructions
and Parts List".
ENGINE LUBRICATION: Robin EC12
oil injected
1. The EC12 twoĆcycle engine is lubricated by the
twoĆcycle oil from a separate oil tank. Use a 32:1
gas to oil mixture for a breakĆin period of 8 hours.
After breakĆin, use only unleaded gasoline in the
fuel tank provided the engine is consuming oil from
the oil tank.
2. The oil tank is equipped with a filtering screen built
into the elbow on the bottom of the tank. This
should be replaced once a year or 300 hours,
whichever comes first. At this time, drain oil in tank
and test oil sensor. To do this, use a spark tester
and pull on the starter rope. If you get a spark, the
oil sensor is no good, replace.
MUFFLER
Check and clean the muffler exhaust hole regularly but
do not enlarge it.
NOTE: If the muffler exhaust hole is enlarged or holes
are drilled into the muffler the warranty is voided.
TUNEĆUP SPECIFICATIONS FOR
ROBIN EC10
1. Spark Plug Gap
Robin NGK BĆ4HS-0.024-0.028in
(0.6-0.7mm)
Champion UJ12-0.024-0.028in (0.6-0.7
mm)
2. Ignition Coil Air Gap
Robin engine points: 0.012-0.020in
(0.3-0.5mm)
3. Carburetor
Low speed adjusting screw, approximately one
turn counterclockwise.
TUNEĆUP SPECIFICATIONS FOR
ROBIN EC12
1. Spark Plug Gap
Robin NGK BM6A-0.024-0.028in.
(0.6-0.7mm)
Champion CJ8-0.024-0.028in. (0.6-0.7mm)
2. Ignition Coil Air Gap
Robin engine points: 0.012-0.020in (0.3-0.5
mm)
3. Carburetor
Low speed adjusting screw, approximately one
turn counterclockwise.
TORQUE SPECIFICATIONS
SPARK PLUG 15-20 ft lbs (21-28 Nm)
LYWHEEL 35 ft lbs (49 Nm)
OIL DRAIN PLUG 10 ft lbs (14 Nm)
OIL ILLER PLUG 10 ft lbs (14 Nm)