MMD Equipment AirMan SDG125S-6A6 Operating and maintenance manual

INSTRUCTIONAL MANUAL
MOBILE GENERATORS
SDG125S-6A6 / SDG150S-6A6
MMD Equipment Inc.
121 High Hill Road
Swedesboro, NJ 08085
Tel: [phone]
Fax: [phone]
www.mmdequipment.com

Preface
◆ This manual explains and illustrates proper handling of the unit, method of daily inspection and
maintenance to enhance the performance of AIRMAN’s generators.
◆ In order to use a machine safely, people with sufficient knowledge and sufficient technology need to deal
with it.
◆ Before operating the unit, read the manual carefully, fully understand its operation and maintenance
requirement. Maintain “SAFETY OPERATION AND PROPER MAINTENANCE OF THE UNIT”.
Be sure to follow safety warnings and cautions given in the manual. Unsafe operation
could cause serious injury or death.
◆For details of handling, maintenance and safety of the engine, see the Engine Operation Manual.
◆Keep the manual available at all times for the operator or safety supervisor.
◆ If the manual is lost or damaged, place an order with your dealer for another copy.
◆ Be sure that the manual is included with the unit when it is handed over to another user.
◆ There may be some inconsistency in detail between the manual and the actual machine due to
improvements of the machine. Ask your dealer if you have any questions or problems.
◆ If you have any questions about the unit, please inform us the model and serial number. A plate
stamped with the model and serial number is attached to side of the unit.
A
040491

Table of Contents
1. Safety ....................................................................................................................................................... 1-1
1.1 Caution before Operation ................................................................................................................ 1-2
1.2 Caution during Operation ................................................................................................................
1-4
1.3 Caution during Inspection and Maintenance ...................................................................................
1-6
1.4 Safety Warning Labels ....................................................................................................................
1-8
2. Part Names .............................................................................................................................................. 2-1
2.1 Unit Appearance and Part Names ................................................................................................... 2-1
2.2
Internal Components ....................................................................................................................... 2-2
3. Installation ............................................................................................................................................... 3-1
3.1 Transporting Unit ........................................................................................................................... 3-1
3.2
Place and Conditions of Unit Installation ................................................................................... 3-2
3.3 Connecting load................................................................................................................................
3-5
3.4 Selecting Cable ...............................................................................................................................
3-9
3.5 Grounding Method............................................................................................................................
3-10
3.6
Selector Valve of Fuel Pipe .......................................................................................................... 3-11
4. Operation ................................................................................................................................................. 4-1
4.1 Instrument panel ............................................................................................................................ 4-1
4.2
Protection device ........................................................................................................................... 4-3
4.3
Check before Starting the Unit .................................................................................................... 4-7
4.4
Unit Operation ................................................................................................................................ 4-9
4.5
Stopping Procedures ..................................................................................................................... 4-12
4.6
Emergency Stop .............................................................................................................................. 4-13
4.7
Air Bleeding ...................................................................................................................................... 4-13
5. Periodic Inspection/Maintenance .......................................................................................................... 5-1
5.1 Important items as Periodic and Maintenance or after Maintenance .............................................. 5-1
5.2 Daily Inspection and keeping Operation Log ...................................................................................
5-2
5.3 Periodic Inspection List ...................................................................................................................
5-3
5.4 Periodic Replacement of Parts .........................................................................................................
5-4
5.5 Maintenance .....................................................................................................................................
5-5
6. Maintenance/Adjustment ....................................................................................................................... 6-1
6.1 Maintenance of Battery..................................................................................................................... 6-1
6.2 Troubleshooting................................................................................................................................
6-3
7. Storage of the Unit ................................................................................................................................. 7-1
7.1 Preparation for Long-term Storage ................................................................................................. 7-1
8. Specifications ......................................................................................................................................... 8-1
8.1 Specifications.................................................................................................................................... 8-1
8.2 Outline drawing .............................................................................................................................. 8-3
9. Wiring Diagram ....................................................................................................................................... 1 9-1
9.1 Generator Wiring Diagram................................................................................................................ . 9-1
9.2 Engine Wiring Diagram.....................................................................................................................
. 9-3

1.Safety
1-1
This operation manual explains and illustrates general requirements for safety and cautions for safety.
Please read these safety requirements carefully and fully understand the contents before starting the
machine.
For your better recognition, according to the degree of potential danger harmful to a human body,
safety messages are classified into three hierarchical categories, namely, , , and
with a caution symbol − attached to each message.
When one of these messages is found, please take preventive measures for safety to carry out “SAFETY
OPERATION AND PROPER MAINTENANCE OF THE UNIT ”.
DANGER indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury. This signal word is to be limited to the
most extreme situations.
WARNING indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to alert against
unsafe practices.
IMPORTANT indicates important caution messages for the performance or
durability of the unit, which has no concern to injury or accident of or to a
human body.
Follow warnings mentioned in this manual. This instruction manual does not describe all safety items.
We, therefore, advise you to pay special attention to all items (even though they may not be described in
the manual) for your safety.

1.Safety
1-2
1.1 Caution before Operation
Ventilation
 Exhaust gas from the engine is poisonous, and could
cause casualties when it is inhaled.
Avoid using the machine in an insufficiently ventilated
building or a tunnel.
PC002
Follow the safety instructions
 Read each instruction plate which is displayed in the manual
or on the machine carefully, understand its content and
follow the indications thereof.
 Keep the Safety Warning labels clean. When they are damaged
or missing, apply new ones.
 Do not modify the machine without prior approval. The safety
may be compromised, functions may be deteriorated, or
machine life may be shortened.
 Never use the machine for the other purposes than power
supply. Otherwise, serious accidents may occur.
TR0086
Handling battery
 Keep flames away from battery.
 Battery may generate hydrogen gas and may explode.
 Battery electrolyte is dilute sulfuric acid.
In case of mishandling, it could cause skin burning.
 Wear protective gloves and safety glasses when handling a
battery.
 Dispose of battery, observing local regulations.
D004
TR0093