Multiquip MQP20P User Manual

Download

OPERATION AND PARTS MANUAL

MODEL MQP20P

20KW STANDBY GENERATOR

(PERKINS 404D-22 DIESEL ENGINE)

Revision #1 (11/28/11)

To ﬁnd the latest revision of this

publication, visit our website at:

www.multiquip.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

PROPOSITION 65 WARNING

Diesel engine exhaust and some of

PAGE 2 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

NOTES

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 3

TABLE OF CONTENTS

MQP20P Standby Generator

Proposition 65 Warning ........................................... 2

Table Of Contents .................................................... 4

Parts Ordering Procedures ...................................... 5

Safety Information ..............................................6-11

Speciﬁcations ........................................................ 12

Dimensions ............................................................ 13

Installation ........................................................14-15

General Information .......................................... 16-17

Major Components ................................................ 18

Basic Engine Components .................................... 19

Digital Controller Panel .......................................... 20

Connector Outlet Box And Main Circuit Breaker ... 21

Load Application/Generator Output ....................... 22

Inspection/Setup ............................................... 23-26

Startup .............................................................. 27-29

Protective Devices ................................................. 30

Transporting ........................................................... 31

Maintenance ..................................................... 32-35

Troubleshooting (Generator) .................................. 36

Troubleshooting (Engine) ....................................... 37

Troubleshooting (Controller) ............................. 38-39

Troubleshooting (Voltage Regulator) ..................... 40

Maintenance Parts Locator .................................... 41

Generator Wiring Diagram (Single Phase) ....... 42-43

Generator Wiring Diagram (Three Phase) ........ 44-45

Explanation Of Code In Remarks Column............. 46

Suggested Spare Parts ......................................... 47

Component Drawings

Housing Assy. ................................................... 48-49

Engine And Generator Mounting Assy. ............. 50-51

Fuel Assy. ......................................................... 52-53

Electrical Assy. .................................................. 54-55

Jacket Water Heater Assy. ................................ 56-57

Solenoid Assy. .................................................... 5-59

Radiator Assy. ................................................... 60-61

Air Filter Assy. ................................................... 62-63

Engine Exhaust Assy. ....................................... 64-65

Engine Oil Assy. ................................................ 66-67

Control Panel Assy. ........................................... 68-69

Controller Assy. ................................................. 70-71

Saddlebox Assy. ...............................................72-73

Circuit Breaker Assy. ........................................... 74-5

Camlok Assy. .................................................... 76-77

Terms And Conditions Of Sale — Parts ................ 78

NOTICE

Speciﬁcations and part numbers are subject to change without notice.

PAGE 4 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

PARTS ORDERING PROCEDURES

Ordering parts has never been easier!

If you have an MQ Account, to obtain a Username

Effective:

Choose from three easy options:

January 1st, 2006

Best Deal!

Order via Internet (Dealers Only):

Order parts on-line using Multiquip’s SmartEquip website!

■ View Parts Diagrams

■ Order Parts

■ Print Speciﬁ cation Information

Goto www.multiquip.com and click on

Order Parts

to log in and save!

Order via Fax (Dealers Only):

All customers are welcome to order parts via Fax. Domestic (US) Customers dial: 1-800-6-PARTS-7 (800-672-7877)

Order via Phone:

Non-Dealer Customers:

Contact your local Multiquip Dealer for parts or call 800-427-1244 for help in locating a dealer near you.

and Password, E-mail us at: parts@multiquip.

com.

To ob tain an MQ Ac cou nt , co nta ct yo ur District Sales Manager for more information.

Use the internet and qualify for a 5% Discount on Standard orders for all orders which include complete part numbers.*

Fax your order in and qualify for a 2% Discount on Standard orders for all orders which include complete part numbers.*

Domestic (US) Dealers Call:

1-800-427-1244

International Customers should contact their local Multiquip Representatives for Parts Ordering information.

Note: Discounts Are Subject To Change

When ordering parts, please supply:

❒ Dealer Account Number ❒ Dealer Name and Address ❒ Shipping Address (if different than billing address) ❒ Return Fax Number ❒ Applicable Model Number ❒ Quantity, Part Number and Description of Each Part

NOTICE

All orders are treated as Standard Orders and will

ship the same day if received prior to 3PM PST.

❒ Specify Preferred Method of Shipment: ✓ UPS/Fed Ex ✓ DHL

■ Priority One ✓ Truck

■ Ground

■ Next Day

■ Second/Third Day

www.multiquip.com

WE ACCEPT ALL MAJOR CREDIT CARDS!

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 5

SAFETY INFORMATION

Do not operate or service the equipment before reading the

Potential hazards associated with the operation of this

entire manual. Safety precautions should be followed at all times when operating this equipment. Failure to read and understand the safety messages and operating instructions could result in injury to yourself and others.

SAFETY MESSAGES

The four safety messages shown below will inform you about potential hazards that could injure you or others. The safety messages speciﬁ cally address the level of exposure to the operator and are preceded by one of four words:

DANGER, WARNING, CAUTION or NOTICE.

SAFETY SYMBOLS

DANGER

Indicates a hazardous situation which, if not avoided,

WILL result in DEATH or SERIOUS INJURY.

WARNING

equipment will be referenced with hazard symbols which may appear throughout this manual in conjunction with safety messages.

Indicates a hazardous situation which, if not avoided,

COULD result in DEATH or SERIOUS INJURY.

CAUTION

Indicates a hazardous situation which, if not avoided, COULD result in MINOR or MODERATE INJURY.

NOTICE

Addresses practices not related to personal injury.

PAGE 6 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

SAFETY INFORMATION

GENERAL SAFETY



 NEVER use accessories or attachments that are not

recommended by MQ Power for this equipment. Damage

Also, know the

and

This information will be invaluable in

emergency or safety devices.

Disconnection of these devices can cause severe injury, bodily harm or even death. Disconnection of any of these

ensure generator is on level ground before use.

keep the machine in proper running condition.

store equipment properly when it is not being used. Equipment should be stored in a clean, dry location out of the reach of children and unauthorized personnel

CAUTION

 NEVER operate this equipment without proper protective

clothing, shatterproof glasses, respiratory protection, hearing protection, steel-toed boots and other protective devices required by the job or city and state regulations.

NEVER operate this equipment when not feeling well due to fatigue, illness or when under medication.

NEVER operate this equipment under the inﬂ uence of

drugs or alcohol.

ALWAYS check the equipment for loosened threads or bolts before starting.

DO NOT use the equipment for any purpose other than

its intended purposes or applications.

to the equipment and/or injury to user may result.

 ALWAYS know the location of the nearest

ﬁ re extinguisher.

 ALWAYS know the location of the nearest

ﬁ rst aid kit.

 ALWAYS know the location of the nearest

phone or keep a phone on the job site. phone numbers of the nearest ambulance, doctor

ﬁ re department.

the case of an emergency.

GENERATOR SAFETY

DANGER

 NEVER operate the equipment in an explosive

atmosphere or near combustible materials. An explosion or ﬁ re could result causing severe

bodily harm or even death.

WARNING

NOTICE

This equipment should only be operated by trained and qualiﬁ ed personnel 18 years of age and older.

Whenever necessary, replace nameplate, operation and

safety decals when they become difﬁ cult read.

Manufacturer does not assume responsibility for any

accident due to equipment modiﬁ cations. Unauthorized equipment modiﬁ cation will void all warranties.

 NEVER disconnect any

These devices are intended for operator safety.

devices will void all warranties.

CAUTION

 NEVER lubricate components or attempt service on a

running machine.

NOTICE

 ALWAYS

 Fix damage to machine and replace any broken parts

immediately.

 ALWAYS

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 7

ENGINE SAFETY



NOTICE

run engine without an air ﬁ lter or with a dirty air

ﬁ lter. Severe engine damage may occur. Service air ﬁ lter

Wet stacking is a common problem with diesel engines

no load applied. When a diesel engine operates without sufﬁ cient load (less than 40% of the rated output), it will not operate at its optimum temperature. This will allow

In order for a diesel engine to operate at peak efﬁ ciency,

it must be able to provide fuel and air in the proper ratio and at a high enough engine temperature for the engine

applied to relieve the condition. It can reduce the system

Codes specify that in certain locations, spark arresters must be used on internal combustion engines that use hydrocarbon fuels. A spark arrester is a device designed

from the engine exhaust. Spark arresters are qualiﬁ ed

SAFETY INFORMATION

DANGER

 The engine fuel exhaust gases contain poisonous carbon

monoxide. This gas is colorless and odorless, and can cause death if inhaled.

The engine of this equipment requires an adequate free ﬂ ow of cooling air. NEVER operate this equipment in any enclosed or narrow area where free ﬂ ow of the air is restricted. If the air ﬂ ow is restricted it will cause injury to people and property and serious damage to the equipment or engine.

WARNING

 D O NOT pl ace h ands or fing ers inside e ngine

compartment when engine is running.

 NEVER operate the engine with heat shields or

guards removed.

Keep ﬁ ngers, hands hair and clothing away

from all moving parts to prevent injury.

DO NOT remove the radiator cap while the

engine is hot. High pressure boiling water will gush out of the radiator and severely scald any persons in the general area of the generator.

 DO NOT remove the coolant drain plug while the engine

is hot. Hot coolant will gush out of the coolant tank and severely scald any persons in the general area of the generator.

 NEVER

frequently to prevent engine malfunction.

 NEVER tamper with the factory settings

of the engine or engine governor. Damage to the engine or equipment can result if operating in speed ranges above the maximum allowable.



which are operated for extended periods with light or

unburned fuel to accumulate in the exhaust system, which can foul the fuel injectors, engine valves and exhaust system, including turbochargers, and reduce the operating performance.

to completely burn all of the fuel.

Wet stacking does not usually cause any permanent

damage and can be alleviated if additional load is

performance and increase maintenance. Applying an increasing load over a period of time until the excess fuel is burned off and the system capacity is reached usually can repair the condition. This can take several hours to burn off the accumulated unburned fuel.

 State Health Safety Codes and Public Resources

 DO NOT remove the engine oil drain plug while the

engine is hot. Hot oil will gush out of the oil tank and severely scald any persons in the general area of the generator.

CAUTION

NEVER touch the hot exhaust manifold,

mufﬂ er or cylinder. Allow these parts to cool before servicing equipment.

PAGE 8 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

to prevent accidental discharge of sparks or ﬂ ames

and rated by the United States Forest Service for this purpose. In order to comply with local laws regarding spark arresters, consult the engine distributor or the local Health and Safety Administrator.

FUEL SAFETY

DANGER

 Make sure the hitch and coupling of the towing vehicle

NEVER

tow a trailer with defective hitches, couplings, chains, etc.

Trailer tires should be inﬂ ated to 50 psi cold.

safety

attach trailer’s safety chains to towing

make sure the vehicle and trailer directional,

unless

posted otherwise. Recommended off-road towing is not to

Avoid sudden stops and starts. This can cause skidding,

Trailer should be adjusted to a level position at all times

rolling

underneath the trailer’s bumper

Use the trailer’s swivel jack to adjust the trailer height to

SAFETY INFORMATION

are rated equal to, or greater than the trailer “gross vehicle weight rating.”

 DO NOT start the engine near spilled fuel or combustible

ﬂ uids. Diesel fuel is extremely ﬂ ammable and its vapors can cause an explosion if ignited.

 ALWAYS refuel in a well-ventilated area, away from

sparks and open ﬂ ames.

 ALWAYS use extreme caution when working with

ﬂ ammable liquids.

 DO NOT ﬁ ll the fuel tank while the engine is running

or hot.

 DO NOT overﬁ ll tank, since spilled fuel could ignite if it

comes into contact with hot engine parts or sparks from the ignition system.

 Store fuel in appropriate containers, in well-ventilated

areas and away from sparks and ﬂ ames.

 NEVER use fuel as a cleaning agent.

 DO NOT smoke ar ound or near the

equipment. Fire or explosion could result from fuel vapors or if fuel is spilled on a hot engine.

TOWING SAFETY

 Check with your local county or state safety

towing regulations, in addition to meeting

Department of Transpor tation (DOT) Safety Towing Regulations, before towing

your generator.

 Refer to MQ Power trailer manual for additional safety

information.

 In order to reduce the possibility of an accident while

transporting the generator on public roads, ALWAYS make sure the trailer that supports the generator and the towing vehicle are mechanically sound and in good operating condition.

 ALWAYS shutdown engine before transporting

CAUTION

 ALWAYS inspect the hitch and coupling for wear.

 Check the tire air pressure on both towing vehicle and

trailer. Also check the tire tread wear on both vehicles.

 ALWAYS make sure the trailer is equipped with a

chain.

 ALWAYS properly

vehicle.

 ALWAYS

backup, brake and trailer lights are connected and working properly.

 DOT Requirements include the following:

• Connect and test electric brake operation.

• Secure portable power cables in cable tray with tie wraps.

 The maximum speed for highway towing is 55 MPH

exceed 15 MPH or less depending on type of terrain.



or jack-kniﬁ ng. Smooth, gradual starts and stops will improve towing.

 Avoid sharp turns to prevent rolling.



when towing.

 Raise and lock trailer wheel stand in up position when

towing.

 Place chock blocks underneath wheel to prevent

while parked.

 Place support blocks

to prevent tipping while parked.



a level position while parked.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 9

ELECTRICAL SAFETY

DANGER



 Make sure power cables are securely connected to the

make certain that proper power or extension

cord has been selected for the job. See Cable Selection

make sure that electrical circuits are properly

Severe injury or death by

can result from operating an ungrounded

DO NOT touch output terminals during operation. Contact with output terminals during operation can cause electrocution,

electrical shock or burn.

SAFETY INFORMATION

generator’s output receptacles. Incorrect connections may cause electrical shock and damage to the generator.

NOTICE

 ALWAYS

The electrical voltage required to

operate the generator can cause severe injury or even death through physical contact with live circuits. Turn generator and all circuit breakers OFF before performing maintenance on the generator or making contact with output terminals.

NEVER insert any objects into the output

receptacles during operation. This is extremely dangerous. The possibility exists of electrical shock, electrocution or death.

Backfeed to a utility system can cause

electrocution and/or property damage. NEVER connect the generator to a

building’s electrical system without a transfer switch or other approved device. All installations should be performed by a licensed electrician in accordance with all applicable laws and electrical codes. Failure to do so could result in electrical shock or burn, causing serious

injury or even death.

Chart in this manual.

Grounding Safety

DANGER

 ALWAYS

grounded to a suitable earth ground (ground rod) per the National Electrical Code (NEC) and local codes before operating generator.

electrocution

generator.

 NEVER use gas piping as an electrical ground.

Power Cord/Cable Safety

DANGER

 NEVER let power cords or cables lay in water.

 NEVER stand in water while AC power from the

generator is being transferred to a load.

 NEVER use damaged or worn cables or cords when

connecting equipment to generator. Inspect for cuts in the insulation.

NEVER grab or touch a live power

cord or cable with wet hands. The possibility exists of electrical shock,

electrocution or death.

PAGE 10 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

BATTERY SAFETY

ENVIRONMENTAL SAFETY

pour waste, oil or fuel directly onto the ground,

SAFETY INFORMATION

DANGER

 DO NOT drop the battery. There is a possibility that the

battery will explode.

 DO NOT expose the battery to open ﬂ ames,

sparks, cigarettes, etc. The battery contains combustible gases and liquids. If these gases and liquids come into contact with a ﬂ ame or spark, an explosion could occur.

WARNING

 ALWAYS wear safety glasses when handling

the battery to avoid eye irritation. The battery contains acids that can cause injury to the eyes and skin.

 Use well-insulated gloves when picking up the battery.

 ALWAYS keep the battery charged. If the battery is not

charged, combustible gas will build up.

 ALWAYS recharge the battery in a well-ventilated

environment to avoid the risk of a dangerous concentration of combustible gasses.

NOTICE

 Dispose of hazardous waste properly.

Examples of potentially hazardous waste are used motor oil, fuel and fuel ﬁ lters.

 DO NOT use food or plastic containers to

dispose of hazardous waste.

 DO NOT

down a drain or into any water source.

 If the battery liquid (dilute sulfuric acid) comes into

contact with clothing or skin, rinse skin or clothing immediately with plenty of water.

 If the battery liquid (dilute sulfuric acid) comes into

contact with eyes, rinse eyes immediately with plenty of water and contact the nearest doctor or hospital to seek medical attention.

CAUTION

 ALWAYS disconnect the NEGATIVE battery terminal

before performing service on the generator.

 ALWAYS keep battery cables in good working condition.

Repair or replace all worn cables.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 11

Model

Type

Armature Connection

Phase

Standby Output

Prime Output

Voltage

Power Factor

Frequency

Speed

Aux. AC Power

Model

Type

No. of Cylinders

Bore x Stroke

Displacement

Rated Output

Starting

Coolant Capacity

Lube Oil Capacity

Fuel Type

Fuel Tank Capacity

Fuel Consumption

Battery

SPECIFICATIONS

Table 1. Generator Speciﬁcations

MQP20P

Rotating ﬁeld, 4-pole,

brushless, shunt excitation design

High Voltage Series High Voltage Series (WYE)

Single Three

20 kW (25 kVA) 20 kW (25 kVA)

17 kW (21.25 kVA) 17 kW (21.25 kVA)

240 V 277Y/480V

1.0 0.8

60 Hz

1800 rpm

Single Phase, 60 Hz

Table 2. Engine Speciﬁcations

Perkins 404D-22 Tier 4

4 cycle, indirect injection

4 cylinders In -Line

3.30 in. x 3.93 in. (84 mm x 100 mm)

135 cu. in. (2.2 liters)

32.6 HP at 1800 rpm

Electric

0.9 gal. (3.6 liters)

2.8 gal. (10.6 liters)

#2 Diesel Fuel

126 gal. (475 liters)

1.5 gal. (5.7 L)/hr at full load 1.2 gal. (4.5 L)/hr at 3/4 load

0.8 gal. (3.0 L)/hr at 1/2 load 0.7 gal. (2.6 L)/hr at 1/4 load

12 VDC

PAGE 12 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

DIMENSIONS

Figure 1. Dimensions

Table 3. Dimensions

Reference

Letter

A 74 in. (1879.6 mm.) G 50.19 in. (1274.8 mm.)

B 32 in. (812.8 mm.) H 35.31 in. (896.9 mm.)

C 77 in. (1955.8 mm.) J 17.5 in. (444.5 mm.)

D 73.06 in. (1855.7 mm.) K 15 in. (381 mm.)

E 62 in. (1574.8 mm.) L 54.06 in. (1373.1 mm.)

F 82.5 in. (2095.5 mm.) M 35.5 in. (901.7 mm.)

Dimension in. (mm) Reference Letter Dimension in. (mm)

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 13

INSTALLATION

GROUND ROD FOR EARTH GROUND

GROUND CABLE

GENERATOR GROUND LUG

CONNECT TO BUILDING GROUND

8 FT. MINIMUM

REFERENCE NEC 250-52(C)

NOTE: GROUND LUG

MUST BE INSTALLED BY USER

PAGE 14 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

Figure 2. Typical Generator Grounding Application

INSTALLATION

OUTDOOR INSTALLATION

Install the generator in a area that is free of debris, bystanders, and overhead obstructions. Make sure the generator is on secure level ground so that it cannot slide or shift around. Also install the generator in a manner so that the exhaust will not be discharged in the direction of nearby homes.

The installation site must be relatively free from moisture and dust. All electrical equipment should be protected from excessive moisture. Failure to do so will result in deterioration of the insulation and will result in short circuits and grounding.

Foreign materials such as dust, sand, lint and abrasive materials have a tendency to cause excessive wear to engine and alternator parts.

CAUTION

Pay close attention to ventilation when operating the generator inside tunnels and caves. The engine exhaust contains noxious elements. Engine exhaust must be routed to a ventilated area.

INDOOR INSTALLATION

GENERATOR GROUNDING

To guard against electrical shock and possible damage to the equipment, it is important to provide a good EARTH ground.

Article 250 (Grounding) of the National Electrical Code (NEC) provides guidelines for proper grounding and speciﬁes that the cable ground shall be connected to the grounding system of the building as close to the point of cable entry as practical.

NEC articles 250-64(b) and 250-66 set the following grounding requirements:

1. Use one of the following wire types to connect the generator to earth ground.

a. Copper — 8 AWG (5.3 mm2)

b. Aluminum — 6 AWG (8.4 mm2)

2. When grounding the generator (Figure 2) connect the ground cable between the lock washer and the nut on the generator and tighten the nut fully. Connect the other end of the ground cable to earth ground.

3. NEC article 250-52(c) speciﬁes that the earth ground rod should be buried a minimum of 8 ft. into the ground.

Exhaust gases from diesel engines are extremely poisonous. Whenever an engine is installed indoors the exhaust fumes must be vented to the outside. The engine should be installed at least two feet from any outside wall. Using an exhaust pipe which is too long or too small can cause excessive back pressure which will cause the engine to heat excessively and possibly burn the valves.

MOUNTING

The generator must be mounted on a solid foundation (such as concrete) and set ﬁrmly on the foundation to isolate vibration of the generator when it is running. The generator must sit at least 6 inches above the ﬂoor or grade level (in accordance to NFPA 110, Chapter 5-4.1).

NOTICE

When connecting the generator to any building electrical system, ALWAYS consult a licensed electrician.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 15

GENERAL INFORMATION

GENERATOR

This generator (Figure 3) is a high-quality, reliable, backup power source used by telecommunications companies to keep their networks connected.

CONTROL PANEL (MEC 20™ Digital Controller)

 AC Metering Display

• Voltage/Amperage / Frequency

• Generator Phase Voltage / Current

• Generator Frequency

 Engine Information Display

• Engine Temperature / Oil Pressure (psi)

• Battery Voltage (DC) / Tachometer

• Hourmeter

 Minor Fault Warning Display

• Switch Not In Auto

• Low Fuel Level

• Low Oil Pressure Alarm

• Low Engine Temperature

• High Engine Temperature Alarm

• Low Battery Voltage

• High Battery Voltage

• Weak Battery Condition

• Battery Charger Input Fail

• Undervoltage

• Over / Underfrequency

• Overcurrent

 Major Fault Shutdown Display

• Overvoltage

• Emergency Stop

• Loss Of Speed

• Overcrank

• Overspeed

• Low Oil Pressure

• High Engine Temperature

• Low Coolant Level

• Spare Programmable Digital Faults

 Switches And Operating Controls

• Run / Off / Auto / Load Test Buttons

• Decrement / Increment / Previous (Exit) /Next (Enter) Program Buttons

• Emergency Stop Button

• Audible Alarm Horn – 80 dB(A) at 2 ft.

• Alarm Horn Silence Button

• Lamp Test Button

• Fault Reset Function

• RJ45 Remote Communications, External Expansion Module Ports

 Timer Countdown Display

• Engine Start Delay

• Oil Bypass

• Overcrank

• Cycle Crank

• Starter Re-engage Delay

• Bypass Delay

 Control LED Indicators

• Switch Position (Run,Off,Auto,Test)

• Common Alarm (Minor Fault)

• Common Shutdown (Major Fault)

• Generator Ready (When in Auto)

• Speed Signal

• Emergency Stop

 Diagnostic LED Indicators:

• Run Output Energized

• Crank Output Energized

• Remote Start Signal Initiated

• Common Fail Output Energized

• Watchdog - CPU Running

• Programmable Output Contacts

CAMLOK OUTLET BOX PANEL

The “Camlok Panel” is provided with the following receptacles:

 Ground (GRND.) - Green  Neutral (NEUT.) - White  LEG 1 - Black  LEG 2 - Red  LEG 3 - Blue

PAGE 16 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

GENERAL INFORMATION

PRINCIPLE OF OPERATION

This generator is a brushless, self-excited, externally voltage regulated, synchronous AC generator. The generator is made up of six major components: main stator (armature), main rotor (ﬁeld), exciter stator (ﬁeld), exciter rotor (armature), rectiﬁer assembly, and voltage regulator.

The generator's exciter consists of a stationary ﬁeld and a rotating armature. The stationary ﬁeld (exciter stator) is designed to be the primary source of the generator's residual magnetism. This residual magnetism allows the exciter rotor (armature) to produce AC voltage even when the exciter stator (ﬁeld) is not powered. This AC voltage is rectiﬁed to DC by the rotating rectiﬁer assembly and fed directly to the main rotor (ﬁeld). As the generator shaft continues to rotate, the main rotor (ﬁeld) induces a voltage into the generator's main stator (armature). At rated speed, the main stator's voltage produced by the residual magnetism of the exciter allows the automatic voltage regulator to function.

The regulator provides voltage to the exciter resulting in a build-up of generator terminal voltage. This system of using residual magnetism eliminates the need for a special ﬁeld ﬂashing circuit in the regulator. After the generator has established the initial residual voltage, the regulator provides a controlled DC ﬁeld voltage to the exciter stator resulting in a controlled generator terminal voltage.

VOLTAGE REGULATION

In the standard conﬁguration (shunt excited), the automatic voltage regulator receives both its input power and voltage sensing from the generator's output terminals. The regulator automatically monitors the generator's output voltage against an internal reference set point and provides the necessary DC output voltage to the exciter ﬁeld required to maintain constant generator terminal voltage. The generator's terminal voltage is changed by adjusting the regulator's reference set point.

ENGINE

This standby generator incorporates a Perkins 404D-22 Tier 4 diesel engine. This engine is designed to meet every performance requirement for the generator. Refer to Table 2 for engine speciﬁcations.

In keeping with Multiquip’s policy of constantly improving its products, the speciﬁcations quoted herein are subject to change without prior notice.

ELECTRONIC GOVERNOR SYSTEM

The electronic governor system controls the RPMs of the engine. When the engine demand increases or decreases, the governor system regulates the frequency variation to ± 0.25%.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 17

MAJOR COMPONENTS

Figure 3. Major Components

Table 4. Generator Major Components

ITEM NO. DESCRIPTION

1 Housing Assembly

PAGE 18 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

2 Exhaust Rain Cap

3 Camlok Connector Box Assembly

4 Fuel System Sub Base Assembly

5 Door Assembly

6 Generator Assembly

7 Circuit Breaker Assembly

8 Battery Assembly

9 Jacket Water Heater Assembly

10 Battery Charger Assembly

11 Starter Solenoid

12 Engine Assembly

13 Controller Assembly

14 Glow Plug Relay

BASIC ENGINE COMPONENTS

Figure 4. Basic Engine Components

Table 5. Basic Engine Components

ITEM NO. DESCRIPTION

1 Radiator

2 Alternator

3 Starter

4 Air Filter

5 Oil Filler Cap

6 Mufﬂer

7 Fuel Filter

8 Oil Drain Plug

9 Oil Filter

10 Oil Dipstick

11 Governor Actuator

12 Fuel Injection Pump

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 19

DIGITAL CONTROLLER PANEL

Microprocessor Engine Controller

Vavg

EXIT

RUN OFF

FREQUENCY

ADJUST

600

SILENCE

ALARM

SHUTDOWN

15 16

Figure 5. Digital Controller Components

1. Liquid Crystal Display — Displays voltage, amperage, frequency,engine information, fault warnings, and other generator and engine information.

2. EXIT Pushbutton — Press button to scroll backwards through the status menus or programming prompts. Press and hold for approximately 2 seconds to exit programming menu when in the programming mode.

3. DECREMENT Pushbutton — Press button to change a programming value while in the programming mode. Press and hold this button to decrease value continuously and release when desired value is displayed. NOTE: The longer the button is held down, the faster the value will decrease.

4. INCREMENT Pushbutton — Press button to change a programming value while in the programming mode or to select a desired programming menu loop. Press and hold this button to increase value continuously and release when desired value is displayed. NOTE: The longer the button is held down, the faster the value will increase.

5. ENTER Pushbutton — Press button to scroll through the status menus or programming prompts. This button is used to enter a programming mode as well as accepting changed programming values. NOTE: The longer the button is held down, the faster the next menu prompt will appear.

6. RUN Pushbutton and LED — Press button to initiate a manual start signal to the generator. The LED will light when in RUN mode.

MEC 20

Aavg

Freq

508

LAMP TEST

DECREMENT INCREMENT

AUTO

RESET

60.0

ENTER

LOAD TEST

VOLTAGE

ADJUST

READY

SPEED SIGNAL

EMERGENCY

STOP

7. OFF Pushbutton and LED — Press button to initiate a stop signal to the generator. The LED will light when in OFF mode.

8. AUTO Pushbutton and LED — Press button to initiate automatic operation of the generator. The LED will light when in AUTO mode.

9. LOAD TEST Pushbutton and LED — Press button to initiate load test of the generator when connected to an associated transfer switch. The LED will light when in LOAD TEST mode.

10. EMERGENCY STOP Pushbutton and LED — Press button to initiate an emergency stop signal to the generator.

11. READY LED — Lights when the generator is set for automatic operation and no shutdown or alarm faults have been activated.

12. SPEED SIGNAL LED — Lights when the engine speed signal is detected.

13. ALARM LED — Lights when any pre-programmed alarm fault has been activated.

14. SHU TDOWN LE D — Flas hes when any preprogrammed shutdown fault has been activated.

15. FREQUENCY ADJUST — This screwdriver adjustable potentiometer is used to ﬁne tune the roll-off frequency from 54 to 61 Hz.

16. VOLTAGE ADJUST — This screwdriver adjustable potentiometer is used to ﬁne tune the generator output voltage.

PAGE 20 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

CONNECTOR OUTLET BOX AND MAIN CIRCUIT BREAKER

Ground

Neutral

OUTLET CONNECTORS

The Camlok outlet box has the following connectors

 Ground (GRND.)

 Neutral (NEUT.)

 LEG 1, LEG 2, LEG 3 (3-phase only)

Black

Red

Ground (Green)

Camlok

Panel

Green

White

Green

Neutral

White

Black

Leg 1

(Black)

(White)

Leg 2 (Red)

Red

MAIN CIRCUIT BREAKER

The generator is equipped with a three-pole, 100 or 30 amp, (single/three phase) circuit breaker to protect the generator from overload.

See Figure 6 for connections.

Green

White

Circuit

Breaker

100A

Black

Red

Generator

Single Phase

Leg 2 (Red)

Leg 1

(Black)

Leg 3

(Blue)

Neutral (White)

Red

Black

Ground

(Green)

Camlok

Panel

Green

White

Green

Neutral

White

Green

White

Black

Blue

Black

Blue

Red

Circuit

Breaker

30A

Blue

Figure 6. Camlok Box and Circuit Breaker Connections

Generator

Red

Three Phase

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 21

LOAD APPLICATION/GENERATOR OUTPUT

SINGLE PHASE LOAD

Always be sure to check the nameplate on the generator and equipment to insure the wattage, amperage, frequency, and voltage requirements are satisfactorily supplied by the generator for operating the equipment.

Generally, the wattage listed on the nameplate of the equipment is its rated output. Equipment may require 130—150% more wattage than the rating on the nameplate, as the wattage is inﬂuenced by the efﬁciency, power factor and starting system of the equipment.

NOTICE

If wattage is not given on the equipment’s name plate, approximate wattage may be determined by multiplying nameplate voltage by the nameplate amperage.

WATTS = VOLTAGE x AMPERAGE

The power factor of this generator is 1.0. See Table 6 below when connecting loads.

Table 6. Power Factor By Load

Type of Load Power Factor

Single-phase induction motors 0.4-0.75

Electric heaters, incandescent lamps 1.0

Fluorescent lamps, mercury lamps 0.4-0.9

NOTICE

Motors and motor-driven equipment draw much greater current for starting than during operation.

An inadequate size connecting cable which cannot carry the required load can cause a voltage drop which can burn out the appliance or tool and overheat the cable. Refer to Table 7 to select the correct cable size.

 When connecting a resistance load such as an

incandescent lamp or electric heater, a capacity of up to the generator’s rated output (kW) can be used.

 When connecting a ﬂuorescent or mercury lamp, a

capacity of up to the generator's rated output (kW) multiplied by 0.6 can be used.

 When connecting an electric drill or other power tools,

pay close attention to the required starting current capacity.

When connecting ordinary power tools, a capacity of up to the generator’s rated output (kW) multiplied by 0.8 can be used.

DANGER

Before connecting this generator to any building’s electrical system, a licensed electrician must install a transfer switch. Serious damage to the building’s electrical system may occur without this transfer switch.

Electronic devices, communication equipment

Common power tools 0.8

1.0

Generator Amperage

Table 8 shows the maximum amps the generator can provide. DO NOT exceed the maximum amps as listed.

Table 7. Cable Selection (60 Hz, Single Phase Operation)

Current

Amperes

2.5 300 600 1000 ft. 600 ft. 375 ft. 250 ft.

5 600 1200 500 ft. 300 ft. 200 ft. 125 ft.

7.5 900 1800 350 ft. 200 ft. 125 ft. 100 ft.

10 1200 2400 250 ft. 150 ft. 100 ft.

15 1800 3600 150 ft. 100 ft. 65 ft.

20 2400 4800 125 ft. 75 ft. 50 ft.

Load in Watts Maximum Allowable Cable Length

At 100

Volts

CAUTION: Equipment damage can result from low voltage

At 200

Volts

#10 Wire #12 Wire #14 Wire #16 Wire

Table 8. Generator Maximum Amps

Rated Voltage Maximum Amps

1Ø 120 Volt 83 X 2 amps (4 wire)

1Ø 240 Volt 83 amps (4 wire)

PAGE 22 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

INSPECTION/SETUP

MAIN CIRCUIT BREAKER

The generator is equipped with a 3-pole, 100-amp circuit breaker to protect it from overload. Make sure that the circuit breaker is in the OFF position prior to starting the engine.

LUBRICATION OIL

Fill the engine crankcase with lubricating oil through the ﬁller hole, but DO NOT overﬁll. Make sure the generator is level and verify that the oil level is maintained between the two notches (Figure 7) on the dipstick. See Table 9 for proper selection of engine oil.

Figure 7. Engine Oil Dipstick

When checking the engine oil, be sure to check if the oil is clean. If the oil is not clean, drain the oil by removing the oil drain plug, and reﬁll with the speciﬁed amount of oil as outlined in the Perkins Engine Owner’s Manual. Oil should be warm before draining.

Other types of motor oils may be substituted if they meet the following requirements:

 API Service Classiﬁcation CC/SC  API Service Classiﬁcation CC/SD  API Service Classiﬁcation CC/SE  API Service Classiﬁcation CC/SF

FUEL CHECK

DANGER

Fuel spillage on a hot engine can cause a ﬁre or explosion. If fuel spillage occurs, wipe up the spilled fuel completely to prevent fire hazards. NEVER smoke around or near the generator.

Reﬁlling the Fuel System

CAUTION

ONLY properly trained personnel who have read

and understood this section should reﬁll the fuel tank system.

This generator has a fuel tank located in the sub base assembly frame (Figure 3). ALWAYS ﬁll the fuel tank with clean fresh #2 diesel fuel. DO NOT ﬁll the fuel tank beyond its capacity.

Pay attention to the fuel tank capacity when replenishing fuel. The fuel tank cap must be closed tightly after ﬁlling. Handle fuel in a safe container. If the container does not have a spout, use a funnel. Wipe up any spilled fuel immediately.

Refueling Procedure:

WARNING

Table 9. Recommended Motor Oil

CAUTION

ALWAYS make sure generator is on ﬁrm level ground

before refueling to prevent spilling and maximize the amount of fuel that can be pumped into the tank.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 23

Diesel fuel and its vapors are dangerous

to your heal th and the surrounding environment. Avoid skin contact and/or inhaling fumes.

INSPECTION/SETUP

DO NOT fill on

1. Place the generator level with the ground. Failure to do so will cause fuel to spill from the tank before reaching full capacity (Figure 8).

unlevel ground

NOTICE

Unlevel Ground

Level Ground

Figure 8. Only Fill on Level Ground

Unlevel Ground

Level Ground

ONLY use #2 diesel fuel when refueling.

2. Unlatch and remove the cabinet door of the generator. Remove fuel cap and ﬁll tank (Figure 9).

3. Monitor the fuel gauge while ﬁlling fuel tank. Stop ﬁlling when the fuel gauge indicates full (Figure 10). DO NOT wait for fuel to rise in ﬁller neck.

1/2

E F

Figure 10. Full Fuel Tank

CAUTION

DO NOT OVERFILL fuel system. Leave room for fuel

expansion. Fuel expands when heated (Figure 11).

DIESEL

Figure 9. Fueling the Generator

FUEL

Heat Source

Fuel EXPANDS

when heated

1/2

Figure 11. Fuel Expansion

E F

PAGE 24 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

INSPECTION/SETUP

COOLANT (ANTIFREEZE/SUMMER COOLANT)

Perkins recommends antifreeze/summer coolant, for use in

their engines, which can be purchased in concentrate (and mixed with 50% demineralized water) or pre-diluted. See the

Perkins Engine Owner’s Manual for further details.

WARNING

If adding coolant/antifreeze mix to the radiator, do not remove the radiator cap until the unit has completely cooled. The possibility of hot coolant exists which can cause severe burns.

The engine coolant capacity is 3.8 quarts (3.6 liters).

OPERATION IN FREEZING WEATHER

When operating in freezing weather, be certain the proper amount of antifreeze (Table 10) has been added.

FAN BELT TENSION

A slack fan belt may contribute to overheating, or to insufﬁcient charging of the battery. Inspect the fan belt for damage and wear and adjust it in accordance with the

Perkins Engine Owner’s Manual.

The fan belt tension is proper if the fan belt bends 10 to 15 mm (Figure 12) when depressed with the thumb as shown below.

Figure 12. Fan Belt Tension

CAUTION

Table 10. Anti-Freeze Operating Temperatures

Vol %

Anti-

Freeze

50 -37 -34 108 226

NOTICE

When the antifreeze is mixed with water, the antifreeze mixing ratio must be less than 50%.

Freezing Point Boiling Point

°C °F °C °F

CLEANING THE RADIATOR

The engine may overheat if the radiator ﬁns become overloaded with dust or debris. Periodically clean the radiator ﬁns with compressed air. Cleaning inside the machine is dangerous, so clean only with the engine turned off and the negative battery terminal disconnected.

AIR CLEANER

Periodic cleaning/replacement is necessary. Inspect it in accordance with the Perkins Engine Owner’s Manual.

NEVER place hands near the belts or fan while the generator is running.

BATTERY

This unit is of negative ground. DO NOT connect in reverse. Always maintain battery ﬂuid level between the speciﬁed marks. DO NOT over ﬁll. Battery life will be shortened if the ﬂuid level is not properly maintained. Add only distilled water when replenishment is necessary.

Check to see whether the battery cables are loose. Poor contact may result in poor starting or malfunction. Always keep the terminals ﬁrmly tightened. Coat the terminals with an approved battery terminal treatment compound. Replace battery with only recommended type battery.

The battery is sufﬁciently charged if the speciﬁc gravity of the battery ﬂuid is 1.28 (at 68° F). If the speciﬁc gravity should fall to 1.245 or lower, the battery is dead and needs to be recharged or replaced.

Before charging the battery with an external electric source, be sure to disconnect the battery cables.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 25

INSPECTION/SETUP

Battery Cable Installation

ALWAYS make sure that the battery cables (Figure 13) are

properly connected to the battery terminals as shown below.

CAUTION

ALWAYS disconnect the negative terminal FIRST and reconnect negative terminal LAST.

Figure 13. Battery Connections

When connecting the battery do the following:

ALTERNATOR

The polarity of the alternator is negative grounding type. When an inverted circuit connection takes place, the circuit will short instantaneously resulting in alternator failure.

DO NOT put water directly on the alternator. Water in the alternator can cause corrosion and damage.

WIRING

Inspect the generator for bad, worn electrical wiring or connections. If any wiring or connections are exposed (insulation missing), replace wiring immediately.

PIPING AND HOSE CONNECTION

Inspect all piping, oil hose, and fuel hose connections for wear and tightness. Tighten all hose clamps and check hoses for leaks.

If any hose (fuel or oil) lines are defective, replace them immediately.

1. Place a small amount of battery terminal treatment compound around both battery terminals. This will ensure a good connection and will help prevent corrosion around the battery terminals.

2. Connect the red cable to the positive terminal of the battery and the black cable to the negative terminal of the battery.

NOTICE

If the battery cable is connected incorrectly, electrical damage to the generator will occur. Pay close attention to the polarity when connecting the battery.

CAUTION

Inadequate battery connections may cause poor starting of the generator, and create other malfunctions.

PAGE 26 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

STARTUP

BEFORE STARTING

CAUTION

The engine’s exhaust contains harmful emissions. ALWAYS have adequate ventilation when operating. Direct exhaust away from nearby personnel.

WARNING

NEVER manually start the engine with the main circuit

breaker in the ON position.

1. Place the main circuit breaker (Figure 14) in the OFF

position prior to starting the engine.

3. Listen for any abnormal noises. If any abnormalities exist, shut down the engine and correct the problem.

4. Using the controller display, verify that the no-load frequency and speed is approximately 62.5 Hz (1875 rpm).

5. Place the main circuit breaker (Figure 16) to the ON position. Voltage is now available at the receptacles.

Figure 16. Main Circuit Breaker (ON)

STARTING (AUTO MODE)

DANGER

Figure 14. Main Circuit Breaker (OFF)

2. Connect the load to the receptacles on the Camlok outlet box. See Figure 6.

3. Tighten terminal nuts securely to prevent load wires from slipping out.

STARTING (MANUAL)

1. Press the RUN button (Figure 15) on the controller to start the engine.

Figure 15. Run Button

2. Once the engine starts, let the engine run for 1-2 minutes. At temperatures below freezing, this time period must be extended to 2-4 minutes.

Before connecting the generator to a building’s electrical system, a licensed

el ec tr ician must install a t ransfer switch. Serious damage to the building’s

electrical system may occur without a transfer switch.

CAUTION

When connecting the generator to an automatic transfer switch, ALWAYS have power applied to the generator’s internal battery charger. This will ensure that the engine will not fail due to a dead battery.

WARNING

When running the generator in the AUTO mode, the generator can start up at any time without warning. NEVER attempt to perform any maintenance when the generator is in the AUTO mode.

NOTICE

When the generator is placed in the AUTO mode, the engine glow plugs will be warmed and the engine will start automatically.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 27

STARTUP

1. Press the AUTO button (Figure 17) on the digital controller to place the generator in the auto mode. This mode allows the controller to monitor the remote-start contacts.

Closure of the remote-start contacts will begin engine cranking. When the contacts are opened, cranking will stop or if the engine is running, engine will stop.

Figure 17. Auto Button

NOTICE

If the generator is to be connected to a building's AC power source via an automatic transfer switch (ATS), press the AUTO button (Figure 17) to place the generator in auto mode.

NORMAL SHUTDOWN PROCEDURE

To shutdown the generator, use the following procedure:

WARNING

NEVER stop the engine suddenly except in an

emergency.

1. Place the main circuit breaker (Figure 19) in the OFF position.

Figure 19. Main Circuit Breaker (OFF)

In this position, should an outage occur, the automatic transfer switch (ATS) will start the generator automatically through the generator remote-start contacts connected to the automatic transfer switch start contacts.

Refer to your ATS installation manual on how to connect the ATS to the generator remote-start contacts.

CLOSING THE ENCLOSURE DOOR

1. Close the engine enclosure door once the generator has started or set to auto start (Figure 18).

CORRECT INCORRECT

Figure 18. Engine Enclosure Door

2. Let the engine cool by running it at low speed for 3-5 minutes with no load applied.

3. Press the OFF button (Figure 20) on the digital controller to shutdown the engine.

Figure 20. OFF Button

EMERGENCY SHUTDOWN PROCEDURE

1. Place the main circuit breaker (Figure 19) in the OFF position.

2. Press the OFF button (Figure 20) on the digital controller to shutdown the engine.

2. If access to the controls or other components is necessary while the engine is running, make sure the door is not left open for an extended period of time.

PAGE 28 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

JACKET WATER HEATER AND INTERNAL BATTERY CHARGER

This generator is equipped with a jacket water heater and an internal battery charger. They are provided with electric cords to connect to a commercial power source.

These units will ONLY function when commercial power has been supplied to them (Figure 21). When using extension cords, refer to Table 7 for the correct size and length.

The battery charger should always be connected to a commercial power source to ensure that the battery does not get discharged.

When using the generator in hot climates there is no need to apply power to jacket water heater. However, if the generator will be used in cold climates, it is best to apply power to the jacket water heater at all times.

STARTUP

Jacket

Water

Heater

Battery

Charger

Connect to external

120 VAC power source

Figure 21. Battery Charger and Jacket Water

Heater Power Connections

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 29

PROTECTIVE DEVICES

Protection devices and emergency stop devices are provided for protection of the generator against trouble during operation. The alarm LED on the digital controller lights or ﬂashes when a fault is detected.

When a major fault is detected, such as low oil pressure, high water temperature, and overspeed, the engine automatically shuts down. Check the display for the fault and correct the problem.

For minor faults, the engine will continue working. Stop the engine and remedy the cause of the problem.

Before inspecting or troubleshooting the generator, press the OFF button on the Digital Controller. Place all circuit breakers in the OFF position and allow sufﬁcient time for adequate cooling.

After automatic shutdown, always inspect the generator and eliminate any problems that might have caused the shutdown before attempting to restart the generator.

When ready to restart the generator, make sure all circuit breakers are OFF. Also check and make sure that the OFF button on the Digital Controller has been pressed to clear the system and that the OFF LED on the Digital Controller is RED. Restart the generator as outlined in the Startup section of this manual.

Refer to the MEC20 Microprocessor Engine/Generator Controller Manual for detailed information of faults and display information.

PAGE 30 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

TRANSPORTING

When transporting the generator in a ﬂatbed truck:

1. Make sure that the fuel tank is empty.

2. Secure the generator with chains through the lifting eyes on the fuel tank. See Figure 22.

LIFTING

EYE

TYPICAL TIE-DOWN APPLICATION

CHAIN

Figure 22. Transporting On A Flatbed Truck

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 31

MAINTENANCE

Engine

Generator

Table 11. Inspection/Maintenance

10 Hrs

DAILY

250 Hrs 500 Hrs

1000

Hrs

Check Engine Fluid Levels X

Check Air Cleaner X

Check Battery Acid Level X

Check Fan Belt Condition X

Check for Leaks X

Check for Loose Parts X

Replace Engine Oil and Filter *

Clean Air Filter X

Check Fuel Filter/Water Separator Bowl X

Clean Unit, Inside and Outside X

Change Fuel Filter X

Clean Radiator and Check Coolant Level*

Replace Air Filter Element *

Check all Hoses and Clamps *

Clean Inside of Fuel Tank X

Measure Insulation Resistance Over 3M ohms X

Check Rotor Rear Support Bearing X

*1 Replace engine oil and ﬁlter at 100 hours, ﬁrst time only.

*2 Add “Supplemental Coolant Additives (SCA’s)” to recharge the engine coolant.

Replace primary air ﬁlter element when restriction indicator shows a vacuum of 625 mm (25 in. H20).

If blowby hose needs to be replaced, ensure that the slope of the blowby hose is at least a 1/2 inch per foot, with no sags or dips that could collect moisture and/or oil.

GENERAL INSPECTION

When the air ﬁlter element is clogged, air intake restriction becomes greater and the air ﬁlter indicator signal shows

Prior to each use, the generator should be cleaned and inspected for deﬁciencies. Check for loose, missing or damaged nuts, bolts, and other fasteners. Also check for

RED. When indicator is red, replace ﬁlter immediately. After changing the air ﬁlter, press the air ﬁlter indicator button to reset.

fuel, oil, and coolant leaks. Use Table 11 as a general maintenance guideline. For engine maintenance, refer to the engine instruction manual.

AIR FILTER

Every 250 hours: Remove air ﬁlter element (Figure 23) and clean the ﬁlter element with low pressure compressed air. Air pressure must not exceed 30 psi (207 kPa). The ﬁlter can be cleaned and reused for up to six times if properly cleaned. Replace air ﬁlter if rips or tears are detected while cleaning.

Air Filter Element

Air Filter Dust Indicator

The air ﬁlter indicator (Figure 23) is attached to the air ﬁlter.

PAGE 32 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

Figure 23. Air Filter/Indicator

Air Filter

Indicator

MAINTENANCE

NOTICE

The air ﬁlter should be changed more frequently in dusty operating conditions.

If the engine is operating in very dusty or dry grass conditions, a clogged air cleaner will result. This can lead to a loss of power, excessive carbon buildup in the combustion chamber and high fuel consumption. Change air cleaner more frequently if these conditions exist.

FUEL ADDITION

Add diesel fuel (the grade may vary according to season and locations).

Removing Water from the Fuel Tank

After prolonged use, water and other impurities accumulate in the bottom of the tank. Occasionally inspect the fuel tank for water contamination and drain the contents if necessary.

During cold weather, the more empty volume inside the tank, the easier it is for water to condense. This can be reduced by keeping the tank full with diesel fuel.

Cleaning Inside the Fuel Tank

If necessary, drain the fuel inside the fuel tank completely. Using a spray washer (Figure 24) wash out any deposits or debris that have accumulated inside the fuel tank.

FUEL TANK INSPECTION

In addition to cleaning the fuel tank, the following components should be inspected for wear:

 Rubber Suspension — look for signs of wear or

deformity due to contact with oil. Replace the rubber suspension if necessary.

 Fuel Hoses — inspect nylon and rubber hoses for signs

of wear, deterioration, and hardening.

 Fuel Tank Lining — inspect the fuel tank lining for signs

of excessive amounts of oil and other foreign matter.

Replacing Fuel Filter

 Replace the fuel ﬁlter cartridge with a new one every

500 hours.

 Loosen the drain plug at the lower top of the fuel ﬁlter.

Drain the fuel in the fuel body together with the mixed water. DO NOT spill the fuel during disassembly.

 Vent any air.

AIR REMOVAL

If air enters the fuel injection system of a diesel engine, starting becomes impossible. After running out of fuel, or after disassembling the fuel system, bleed the system. Refer to the Perkins engine manual for details.

CHECK OIL LEVEL

Check the crankcase oil level prior to each use, or when the fuel tank is ﬁlled. Insufﬁcient oil may cause severe damage to the engine. The oil level must be between the two notches on the dipstick as shown in Figure 7.

Replacing Oil Filter

1. Remove the old oil ﬁlter.

2. Apply a ﬁlm of oil to the gasket on the new oil ﬁlter.

3. Install the new oil ﬁlter.

4. After the oil ﬁlter has been replaced, the engine oil will drop slightly. Run the engine for a while and check for leaks before adding more oil if needed. Clean excessive

Figure 24. Fuel Tank Cleaning

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 33

oil from engine.

MAINTENANCE

Remove

FLUSHING OUT RADIATOR AND REPLACING COOLANT

1. Remove radiator cap. Remove the coolant drain plug. Move the lever to the open position to start draining out coolant. See Figure 25.

Radiator Cap

Battery

Charger

Turn to

Open

Radiator

Drain

Remove

Drain Plug

Figure 25. Draining Coolant

2. Flush the radiator by running clean tap water through radiator until signs of rust and dirt are removed. Do not clean radiator core with any objects, such as a screwdriver.

Radiator

RADIATOR CLEANING

The radiator (Figure 26) should be cleaned with a highpressure washer when excessive amounts of dirt and debris have accumulated on the cooling ﬁns or tube. When using a high pressure washer, stand at least 5 feet (1.5 meters) away from the radiator to prevent damage to the ﬁns and tube.

Figure 26. Radiator Cleaning

VOLTAGE REGULATOR ADJUSTMENTS

When the voltage regulator is defective or broken and is replaced, the following adjustment procedure needs to be performed on the newly installed voltage regulator.

Potentiometers

3. Check hoses for softening and kinks. Check clamps for signs of leakage.

4. Move lever to the closed position and reinstall coolant drain plug.

5. Replace with coolant as recommended by the engine manufacturer.

6. Close radiator cap tightly.

WARNING

Allow engine to cool before ﬂushing out radiator. Flushing the radiator while hot could cause serious burns from water or steam.

Figure 27 shows the screwdriver adjustable potentiometers on the front of the voltage regulator.

VOLTAGE REGULATOR

VOLT

STAB

U/F

Figure 27. Voltage Regulator Potentiometers

1. Coarse Voltage Adjust — A screwdriver adjustable

potentiometer on the front of the voltage regulator

PAGE 34 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

MAINTENANCE

used to adjust the generator output voltage. Clockwise adjustment increases the generator output voltage.

2. Stability Adjust — System stability is the ability of the

generator to respond to load transients. Decreasing the stability makes the generator less sluggish and faster to respond to load transients.

If the stability of the regulator is decreased too much,

the generator will tend to hunt under steady state conditions. Increasing stability increases the response time of the generator while decreasing stability decreases response time.

The screwdriver adjustable potentiometer is used

to adjust the system stability. Clockwise adjustment increases stability.

3. Roll-Off Frequency Selection — The roll-off point is

the frequency where the generator voltage starts to decrease. This reduces the kilowatt load to the engine, which allows the engine to recover in speed under any load transient condition.

The voltage regulator has the roll-off point preset to

58 Hz in the 60 Hz mode. To change the roll off point, perform the following:

a. Adjust the engine to the desired rated speed

(60 Hz).

b. Set the voltage to the desired setting at rated

speed.

c. Adjust the engine speed to the desired roll-off point.

d. Turn the potentiometer counterclockwise until the

voltage returns to rated.

e. Readjust the engine speed to rated speed.

Adjustment Procedure

F1 and the negative lead to F2 or use an appropriate AC voltmeter on the generator output leads.

6. Start and run the generator at no load and rated speed. The generator voltage should build up to a minimum level. If it does not build up, refer to the generator manual for ﬁeld ﬂashing information.

7. Slowly adjust the Voltage Adjust potentiometer until the generator voltage reaches the nominal value. Also adjust the remote Voltage adjust to set the generator voltage to the exact value desired.

8. Turn the Stability Adjust potentiometer counterclockwise until instability is shown on the voltmeter. With the system operating in an unstable condition, slowly adjust the Stability Adjust potentiometer clockwise until generator stability is reached.

9. Interrupt the regulator power for a short period of time (1 to 2 seconds).

10. If the generator remains stable, no further adjustment is necessary.

11. If generator does not remain stable, increase the stability slightly and interrupt the regular power again.

12. Repeat step 11 until system stability is reached and maintained.

GENERATOR STORAGE

For long term storage of the generator the following is recommended:

1. Drain the fuel tank completely. Treat with a fuel stabilizer if necessary.

2. Completely drain the oil from the crankcase and reﬁll, if necessary, with fresh oil.

3. Clean the entire generator, inside and outside.

1. Make sure that the voltage regulator is connected correctly to the generator. Refer to the generator wiring diagram.

2. Turn t he Volta ge A djus t po tent iom eter ful ly counterclockwise.

3. Turn Stability Adjust potentiometer fully clockwise.

4. Set the remote Voltage Adjust to the center position.

5. Connect the positive lead of a 100 VDC voltmeter to

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 35

4. Disconnect the battery.

5. Make sure engine coolant is at proper level.

6. Cover the generator and store in a clean, and dry place.

TROUBLESHOOTING (GENERATOR)

Troubleshooting (Generator)

Symptom Possible Problem Solution

AC Voltmeter defective? Check output voltage using a voltmeter.

Is wiring connection loose? Check wiring and repair.

No Voltage Output

Low Voltage Output

High Voltage Output

Circuit Breaker Tripped

Is voltage regulator defective? Replace if necessary.

Defective Rotating Rectiﬁer? Check and replace.

Defective Exciter Field? Check and replace.

Is engine speed correct? Turn engine throttle lever to “High”.

Is wiring connections loose? Check wiring and repair.

Defective AVR? Replace if necessary.

Is wiring connections loose? Check wiring and repair.

Defective AVR? Replace if necessary.

Short Circuit in load? Check load and repair.

Over current? Conﬁrm load requirements and reduce.

Defective circuit breaker? Check and replace.

Over current Relay actuated? Conﬁrm load requirement and replace.

PAGE 36 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

Symptom Possible Problem Solution

Engine will not start or start is delayed, although engine can be turned over.

At low temperatures engine will not start.

Engine ﬁres but stops soon as starter is switched off.

Engine stops by itself during normal operation.

Low engine power, output and speed.

TROUBLESHOOTING (ENGINE)

Troubleshooting (Engine)

No Fuel reaching injection pump? Add fuel. Check entire fuel system.

Defective fuel pump? Replace fuel pump.

Fuel ﬁlter clogged? Replace fuel ﬁlter and clean tank.

Faulty fuel supply line? Replace or repair fuel line.

Compression too low?

Fuel pump not working correctly? Repair or replace fuel pump.

Oil pressure too low? Check engine oil pressure.

Low starting temperature limit exceeded?

Defective battery? Charge or replace battery.

Air or water mixed in fuel system?

Engine oil too thick?

Defective battery? Replace battery.

Fuel ﬁlter blocked? Replace fuel ﬁlter.

Fuel supply blocked? Check the entire fuel system.

Defective fuel pump? Replace fuel pump.

Fuel tank empty? Add fuel.

Fuel ﬁlter blocked? Replace fuel ﬁlter.

Defective fuel pump? Replace fuel pump.

Mechanical oil pressure shutdown sensor stops the engine due to low oil?

Fuel tank empty? Replace fuel ﬁlter.

Fuel ﬁlter clogged? Replace fuel ﬁlter.

Fuel tank venting is inadequate? Ensure that tank is adequately vented.

Leaks at pipe unions?

Speed control lever does not remain in

selected position?

Engine oil level too full? Correct engine oil level.

Injection pump wear?

Check piston, cylinder and valves. Adjust or repair per engine repair manual.

Comply with cold starting instructions and proper oil viscosity.

Check carefully for loosened fuel line

coupling, loose cap nut, etc.

Reﬁll engine crankcase with correct type of oil for winter environment.

Add oil. Replace low oil shutdown sensor if necessary.

Check threaded pipe unions tape and tighten unions a required.

See engine manual for corrective action.

Use No. 2-D diesel fuel only. Check the fuel injection pump element and delivery valve assembly and replace as necessary.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 37

TROUBLESHOOTING (CONTROLLER)

CAUTION

Before opening the enclosure to perform troubleshooting or any service task, isolate the controller from any possible source of power. Failure to do so may result in serious personal injury or death due to electrical shock.

Troubleshooting (MEC20 Controller)

Symptom Possible Problem Solution

Does not power up even with correct DC power applied

LCD is not operational

Controller cannot be "reset"

No "RUN" output signal

Overspeed shutdown occurs at normal speed

Voltage or current metering is reading incorrectly

Wiring errors or short circuit?

Microprocessor defective?

Insufﬁcient DC supply voltage? Check voltage at input terminals B+ and B- (10-30 VDC).

Bad LCD resolution?

Controller not in OFF mode?

Engine is running?

Shutdown circuits reset?

No engine speed signal?

RUN output LED off?

Controller not correctly programmed?

Battery not properly grounded?

Analog input not properly calibrated?

Incorrect wiring?

Check wiring and repair. NOTE: The MEC 20 electronic fuse triggers when there is an overload condition and does not reset until the supply voltage is removed and overload condition is corrected.

Check that the "watchdog" LED on the rear of the PCB is ﬂashing red meaning that the microprocessor is working. If not, repair or replace microprocessor.

Adjust LCD contrast potentiometer (R115) on the rear of PCB for good pixel resolution for the operating temperature of the unit.

Check that the controller is set to the OFF mode before resetting.

Check that the engine has come to a complete stop before resetting.

Check that all shutdown circuits are reset (red shutdown LED must be off).

Engine speed signal must be detected (speed signal green LED on) during cranking if the "run-output fail safe" feature is enabled. Verify correct magnetic pick-up signal at cranking (2.0 VAC min.)

Check that the RUN output LED (on the rear of the PCB) is on. If yes, verify relay contact operation on terminals #18 and #19.

Verify that the controller has been programmed with the correct values for the number of ﬂywheel teeth, nominal RPM, and overspeed setpoint percentage.

Verify that the controller has been programmed with the correct values for voltage sensing PT ratio and/or current sensing CT ratio.

Verify that the battery supply DC negative conductor is properly grounded to the engine block (i.e. to a common ground point.)

Verify that the controller's analog input has been properly calibrated.

Verify that the voltage sensing wiring connection to the controller matches power distribution type (Note: standard direct voltage connection requires that the generator's neutral is solidly grounded).

PAGE 38 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

Symptom Possible Problem Solution

Engine temperature or oil pressure display is reading incorrectly

Engine temperature or oil displays "9999"

Engine alarms on high engine temperature or low oil pressure when engine is operating within normal limits

Keys on faceplate do not operate.

TROUBLESHOOTING (CONTROLLER)

Troubleshooting (MEC20 Controller) - continued

Improper calibration?

Incorrect engine sensor wiring?

Battery not properly grounded?

Incorrect wiring?

Incorrect resistance?

Improper calibration? Verify calibration.

Incorrect wiring?

Incorrect resistance?

Incorrect connection?

Verify that the controller's analog input has been properly calibrated as per manual instructions.

Verify that the engine sensor wiring is correct (Note: Use factorysupplied engine sensors only.)

Verify that the battery supply DC negative conductor is properly grounded to the engine block (i.e. to a common ground point.)

Check that the wiring from the controller terminal #37 and #38 to the engine mounted sender is correct (i.e. wiring is not open or shorted).

Verify that the engine mounter senders have correct resistance reading for corresponding input temperature or pressure (refer to Controller manual).

Check that the wiring from the controller terminal #37 and #38 to the engine mounted sender is correct (i.e. wiring is not open or shorted).

Verify that the engine mounter senders have correct resistance reading for corresponding input temperature or pressure (refer to Controller manual).

Verify that the interconnecting ribbon cable between the faceplate and the main printed circuit board is connected correctly.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 39

TROUBLESHOOTING (VOLTAGE REGULATOR)

Troubleshooting (Voltage Regulator)

Symptom Possible Problem Solution

Residual Voltage at regulator power input wires 3 and 4 below 10 VAC?

Accelerated time to rated speed too long?

Residual Voltage - No output

Field leads F1, F2 not connected? Connect ﬁeld leads F1, F2.

Power input leads not connected? Connect power input leads 3, 4.

Blown or missing fuse? Replace fuse.

Defective regulator? Replace regulator.

Defective generator? Consult generator manual.

Incorrect connections? Check wiring diagram for proper connections.

Voltage Adjust turned down?

Output Voltage Low

Remote Voltage Adjust is turned down?

Defective regulator?- Replace regulator.

Voltage Adjust turned too high?

Output Voltage High

Remote Voltage Adjust is turned too high?

Output Voltage High - No Adjustment

Remot e Volt age Ad jus t Operates Backwards

Generator Output Voltage Hunting

Poor regulation Defective regulator? Replace regulator.

Defective regulator? Replace regulator.

Voltage adjust wire connected backwards? Reverse the wiring of the remote Voltage Adjust.

Stability Adjust not set properly? Rotate the Stability Adjust clockwise until hunting stops.

Check wiring diagram for proper connections.

Flash generator speed. Refer to ﬁeld ﬂashing section in generator manual.

Reduce acceleration time.

Interrupt power input to regulator after achieving rated speed.

Rotate Voltage Adjust clockwise until the desired voltage is reached.

Rotate remote Voltage Adjust clockwise until the desired voltage is reached.

Rotate Voltage Adjust counterclockwise until the desired voltage is reached.

Rotate remote Voltage Adjust counterclockwise until the desired voltage is reached.

PAGE 40 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

MAINTENANCE PARTS LOCATOR

Refer to Figure 28 for the location of the components in the generator wiring diagram.

Figure 28. Maintenance Parts Locator

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 41

CONTROL BOX

GENERATOR WIRING DIAGRAM (SINGLE PHASE)

TB1

THOMPSON TECHNOLOGY

MEC20 CONTROLLER

RUN

CRANK

WHT/RED

RED/GRY

WHT/BLU

3 AMP DIODE

47 OHM, 5W

4 5

WHT

G 10

ENGINE GROUND

POINT (E1)

YEL/BRN

WHT/RED

WHT/BLU

FREQUENCY ADJUST

POTENTIOMETER

5K OHM 10 TURN

SH3-BLK

SH3-RED

CUSTOMER CONNECTIONS

CONNECT DIRECTLY TOEXPANSION

MODULE TERMINALS

THOMPSON MEC20

EXPANSION MODULE

TB1

GAC 5500

GOVERNOR

CONTROLLER

TB1

B+

B-

GND.

J17

WHT/RED

WHT

BLU/BRN

SH1-BLK

SH1-WHT

SH1-SHD

SH2-WHT

SH2-BLK

GRY/RED

WHT

CAT 5ETHERNET

MP2

MAGNETIC

PICKUP

MP1

PROGRAMMABLE OUTPUT #1 GLOW PLUG

PROGRAMMABLE OUTPUT #2 UNUSED

PROGRAMMABLE OUTPUT #3 UNUSED

PROGRAMMABLE OUTPUT #4 UNUSED

COMMON FAIL

BATT +

BATT -

GND.

ENGINE TEMP SEND

OIL PRESS. SEND

INPUT #3

LOW FUEL WARNING

RUPTURE BASING WARNING

INPUT #2

INPUT #1

LOW COOLANT LEVEL

CT COM

CT L3+

CT L2+

CT L1+

GEN L1

GEN L2

GEN L3

GEN NEU.

REMOTE START

14 AWG RED/GRY

10 AMP

2 3

10 AWG RED/GRN

WOODWARD

GOVERNOR

BRN/BLU

ACTUATOR

126

FLYWHEEL

GEAR TEETH

SH1-SHD

TWISTED PAIR

BLU/BRN

TWISTED PAIR

SH1-BLK

SH1-WHT

SH1-SHD

MAGNETIC

PICK-UP

RED/GRY

WHT/GRY

BLU/ORG

YEL/BLU

GRN/BLU

BLU

YEL/WHT

YEL/RED

YEL/ORG

YEL

RED/GRY

B+

RED/GRY

WHT/GRN

B-

WHT

B-

PUR/WHT

PURPLE

WHT/BLK

BLK/GRY

LOW COOLANT

13 14

BLK/PINK

GREEN

RED/BLK

RED/BLU

RED/YEL

GRY/RED

GRY/WHT

GRY/GRN

GREY

BLK/WHT

BLK/YEL

RELAY

BLK/ORGWHT

WHT

(R1)

VOLTAGEFINE ADJUST

POTENTIOMETER 2K OHM 10 TURN

WHT/BRN

BRN/WHT

WHT/GRN

PUR/WHT

PURPLE

WHT/BLK

BLK/GRY

BLK/ORG

REMOTE ST AR T CONT ACTS

CLOSE TO ST AR T IN AUTO

GLOW PLUG

ELEMENTS

CASE GROUNDED

RUPTURED BASINSWITCH

LOW COOLANT LEVEL SENSOR

OPEN WHEN WET

BLUE

CLOSED WHEN DRY

6 AWG BLU

(E1)

LOW FUELSWITCH

(E1)

GLOW PLUG

WHT/GRY

OIL PRESSURESENDER

(E1)

RED

RELAY

BLACK

(SPARE)

(E1)

6 AWG RED

COOLANT TEMPERATURE

SWITCH

(E1)

WHT/RED

WHT/BRN

BRN/WHT

GREEN

RED/BLK

RED/BLU

RED/YEL

GRY/RED

GRY/WHT

GRY/GRN

GREY

(E1)

PAGE 42 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

YEL/BRN

WHT/RED

WHT/BLU

10 AWG RED/GRN

6 AWG RED

WHT/RED

WHT/BRN

BRN/WHT

GREEN

RED/BLK

RED/BLU

RED/YEL

GRY/RED

GRY/WHT

GRY/GRN

GREY

GENERATOR WIRING DIAGRAM (SINGLE PHASE)

ALTERNATOR

D+

B+

STARTER

SOLENOID

WHT

3.5 AMP

BATTERY CHARGER

BLK GRN WHT

FUSE

REMOTE

U/F

VOLTAGEADJ.

3 4

CURRENT

TRANSFORMER

100:5

CURRENT

TRANSFORMER

100:5

PLUG

(L2)

(L1)

BLK

RED

10 AWG ORG

BLK GRN WHT

EXITER

FIELD INPUT

F+

F-

(S)

STARTER

MOTOR

CHASSIS GND

PLUG

CONNECT TO

120 VAC, 60 Hz

POWER

EXCITER FIELD

(STATOR)

DC INPUT

(B)

CONNECT TO

120 VAC, 60 Hz

POWER

6 AWG RED

NOTES:

L1 NEUTRAL

T1 T2

CONNECTION STUD

TERMINAL BLOCK

ROTATING RECTIFIER

EXCITER ARMATURE

(ROTOR)

USE #4 AWG BLACK STAGEAND LIGHTING CABLE (L1)

USE #4 AWG RED STAGEAND LIGHTING CABLE (L2)

USE JUMPER TO SELECT FOR 60 Hz OPERATION

SINGLE-PHASE

FULL BRIDGE

(+)

(-)

SINGLE PHASE

AC OUTPUT

SINGLE PHASE, 240 VAC

60 Hz OUTPUT

100 AMP 3-POLE

CIRCUIT BREAKER

NOT USED

CIRCUIT BREAKER BOX

MAIN FIELD

(ROTOR)

(+)

INPUT

(-)

CONNECT TO LOAD VIA

CAMLOK ASSEMBLY

#4 AWG WHITE

STAGE AND LIGHTING

CABLE (NEUTRAL)

GENERATOR

SADDLE BOX

#10 AWG GREEN CONNECT

TO GENERATOR SADDLE

BOX GROUND (BOND) POINT

MAIN ARMATURE

(STATOR)

120 VAC

NEU.

120 VAC

(SPARE)

NOT USED

1/0 BLK

10 AWG BLK

ENGINE GROUND

POINT (E1)

500W

+12 VOLT BATTERY

JACKET WATERHEATER

10 AWG RED

REMOTE

VOLTAGEADJ.

COARSE

WHT/BLU

6 AWG RED

1/0 RED

VOLTAGEREGULATOR

BASLER SE350

5 AMP SLOW BLOW

VOLT

STAB

5 AMP

#4 AWG GREEN

STAGE AND LIGHTING

CABLE (GROUND)

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 43

GENERATOR WIRING DIAGRAM (THREE PHASE)

PAGE 44 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

GENERATOR WIRING DIAGRAM (THREE PHASE)

50:5

CURRENT

TRANSFORMER

(L3)

50:5

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 45

EXPLANATION OF CODE IN REMARKS COLUMN

The following section explains the different symbols and

PART NO. Column

QTY. Column

— Item quantity can be indicated by a

A/R (As Required) is generally used for hoses or other

A blank entry generally indicates that the item is not sold separately. Other entries will be clariﬁ ed in the “Remarks”

Some of the most common notes found in the “Remarks” Column are listed below. Other additional notes needed

same unique symbol will be included when this item is

— Used to list an effective serial

— Indicates that the part

part is NOT used on a speciﬁ c model or model number

available items. Examples include battery cables, shims,

— Indicates that an item cannot be purchased as a separate item and is either part of an assembly/kit that can be purchased, or is not available

remarks used in the Parts section of this manual. Use the help numbers found on the back page of the manual if there are any questions.

Numbers Used

number, a blank entry, or A/R.

NOTICE

The contents and part numbers listed in the parts section are subject to change without notice. Multiquip does not guarantee the availability of the parts listed.

SAMPLE PARTS LIST

NO. PART NO. PART NAME QTY. REMARKS

1 12345 BOLT .....................1 .....INCLUDES ITEMS W/%

2% WASHER, 1/4 IN. ..........NOT SOLD SEPARATELY

2% 12347 WASHER, 3/8 IN. ..1 .....MQ-45T ONLY

3 12348 HOSE ..................A/R ...MAKE LOCALLY

4 12349 BEARING ..............1 .....S/N 2345B AND ABOVE

NO. Column

Unique Symbols — All items with same unique

symbol

(@, #, +, %, or >) in the number column belong to the same assembly or kit, which is indicated by a note in the “Remarks” column.

Duplicate Item Numbers — Duplicate numbers indicate multiple part numbers, which are in effect for the same general item, such as different size saw blade guards in use or a part that has been updated on newer versions of the same machine.

NOTICE

When ordering a part that has more than one item number listed, check the remarks column for help in determining the proper part to order.

parts that are sold in bulk and cut to length.

Column.

REMARKS Column

to describe the item can also be shown.

Assembly/Kit — All items on the parts list with the

purchased.

Indicated by:

“INCLUDES ITEMS W/(unique symbol)”

Serial Number Break

number range where a particular part is used.

Indicated by:

“S/N XXXXX AND BELOW” “S/N XXXX AND ABOVE” “S/N XXXX TO S/N XXX”

Speciﬁ c Model Number Use

is used only with the speciﬁ c model number or model number variant listed. It can also be used to show a

variant.

Indicated by:

Numbers Used — Part numbers can be indicated by a number, a blank entry, or TBD.

TBD (To Be Determined) is generally used to show a part that has not been assigned a formal part number at the time of publication.

A blank entry generally indicates that the item is not sold separately or is not sold by Multiquip. Other entries will be clariﬁ ed in the “Remarks” Column.

PAGE 46 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

“XXXXX ONLY” “NOT USED ON XXXX”

“Make/Obtain Locally” — Indicates that the part can be purchased at any hardware shop or made out of

and certain washers and nuts.

“Not Sold Separately”

for sale through Multiquip.

SUGGESTED SPARE PARTS

MQP20P WITH PERKINS 404D-22 DIESEL ENGINE

1 to 3 units

Qty. P/N Description

1............140517050 ............OIL FILTER

6............26561117 ..............KIT, FUEL FILTER

1............130506300 ............PRIMER

1............GPC1000 .............. SENSOR, LOW FUEL

1............U85046501 ........... ALTERNATOR

2............EE2916 ................. RELAY, STARTER SOLENOID, COLE HERSEE, 12V

1............EE46269 ............... SENSOR, COOLANT LEVEL

1............MEC000788 .......... SENSOR, WATER TEMPERATURE

1............U45537130 ........... HOSE, RADIATOR, UPPER

1............U45537140 ........... HOSE, RADIATOR LOWER

1............145996051 ............GASKET, THERMOSTAT

1............145206230 ............THERMOSTAT

1............U45010062 ........... WATER PUMP

3............080109107 ............BELT

1............24850072 ..............RADIATOR CAP

3............135326206 ............ELEMENT, AIR FILTER

1............MEC003654 .......... SENSOR, OIL PRESSURE

5............EE5812 ................. FUSE, 10 AMP

5............EE5811 ................. FUSE, 5 AMP

3............A-527066-1 ........... FUSE, 5 AMP, SLOW BLOW

1............EE10997 ............... CIRCUIT BREAKER, CUTLER HAMMER, 3-POLE, 100A

NOTICE

Part numbers on this Suggested Spare Parts list may supersede/replace the part numbers shown in the following parts lists.

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 47

HOUSING ASSY.

PAGE 48 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

HOUSING ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE40861 HOUSING ASSY., PAINTED WHITE, W/ INSULATION 1 2 EE40727 FLANGE, ADAPTOR, ENCLOSURE TO FUEL TANK 1 3 EE54214 KIT, INSULATION 1 4 EE33427 MQ POWER DECAL BLACK 1 5 EE33424 MQ POWER DECAL RED 1 6 EE33425 MQ POWER DECAL RED 2 7 EE42018 PANEL COVER 1

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 49

ENGINE AND GENERATOR MOUNTING ASSY.

PAGE 50 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

ENGINE AND GENERATOR MOUNTING ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE46389 GENERATOR, 30KW 1 2 EE54153 ENGINE, PERKINS 21.3KW 404D-22 1 3 EE40907 MOUNT, COMPRESSION 4 4 EE54212 CROSS MEMBER, ENGINE 1 5 EE54211 CROSS MEMBER, GENERATOR 1 6 EE54208 DRIVE DISC 2 7 EE54209 BOLT, DRIVE DISC 6

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 51

FUEL ASSY.

To TB1-20

PAGE 52 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

FUEL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE40871 TANK, FUEL, SUB BASE, 50 GAL 1 2 GPC1000 SENSOR, LOW FUEL 1 3 GPC 3005 CAP, FUEL TANK, LOCKING (2IN NPT) 1 4 GPC 3152 CAP, STANDARD VENT 1 5 GPC 3162 CAP, EMERGENCY PRESSURE RELIEF 2 6 GPC 1003 GAUGE, FUEL 1 7 GPC3600 FITTING, FUEL RETURN 1 8 GPC3600 FITTING, FUEL SUPPLY 1 10 2656613 FUEL FILTER ASSY. 1 11 130506300 PRIMER 1 12 130506350 LIFT PUMP 1 13 33811114 OLIVE 2 14 131246290 PIPE, LOW PRESSURE FUEL 2 15 067100015 CLIP 4

16 26561117 FUEL FILTER KIT ..............................................1................INCLUDES ITEMS W/@

17@ 26560014 SEAL, O-RING 1 18@ 0490786 SEAL 2

19@ ELEMENT, FUEL FILTER ..................................1................MUST PURCHASE KIT

20 068209126 HOSE 1 21 068209227 PIPE, FUEL 1

22 CLAMP, HOSE 5/16IN OETTIKER ....................6................OBTAIN LOCALLY

23 HOSE, FUEL, 5/16IN X 8IN ...............................1................OBTAIN LOCALLY

24 HOSE, FUEL 3/16IN X 3FT ...............................1................OBTAIN LOCALLY

25 HOSE, FUEL, 5/16IN X 14IN .............................1................OBTAIN LOCALLY

26 EE55628 GOVENOR ACTUATOR 1 27 GPC4306 ALARM, FLOAT, FUEL, IN BASIN 1 28 944-116 BALL VALVE W/ RED HANDLE 1

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 53

ELECTRICAL ASSY.

18A

To External

Power Source

PAGE 54 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

ELECTRICAL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE46626 BATTERY, MAINT. FREE, GROUP 24, 800 1 2 EE34486 J-BOLT, BATTERY, 10.38 IN. 2 3 EE38190 TRAY, BATTERY 1 4 EE25596 BATTERY HOLD DOWN 1

5 NUT, ACORN CAP, 5/16-18, SS ........................2................OBTAIN LOCALLY

6 NUT, NYLOCK 55, 5/16-18, SS .........................2................OBTAIN LOCALLY

7 EE40908 WASHER, SNUBBING 2.0" O.D, .45" I.D. 2 8 EE40904 BRACKET, MTG., BATTERY TRAY AND CHARGER 1 9 EE31218 CHARGER, BATTERY, AUTO, FLOAT EQ 1 10 EE34068 BRACKET, SENS LC CHARGER MNTING 1 11 EE36506 COVER, RAIN, BATTERY CHARGER 1

12 CABLE, BATTERY, NEGATIVE BLACK, ............1................MAKE LOCALLY

5/16-10 GA EYE TERMINAL 5'8" LONG

13 CABLE, BATTERY, NEGATIVE RED, .................1................MAKE LOCALLY

5/16-10 GA EYE TERMINAL 5'8" LONG

14 EE6009 FITTING, CONDUIT, 90°, NON-METALLIC 1 15 185086600 STARTER MOTOR 1 16 U85046501 ALTERNATOR 1 17 080109107 BELT 1 18 EE2543 MAGNETIC PCKUP W/ WIRES (RED/BLCK) 1 18A EE54416 ADAPTER, MAGNETIC PICK-UP 1 19 EE7315 PLACARD, WATER DRAIN 1 20 EE22218 3/8" SPLIT LOOM 3FT

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 55

JACKET WATER HEATER ASSY.

To External

Power Source

PAGE 56 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

JACKET WATER HEATER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE40205 HEATER, ENGINE BLOCK, TANK STYLE 1 2 EE40939 BRACKET, MOUNTING, HEATER 1

3 CLAMP, HOSE #10 (SILICONE STYLE) ...........4................OBTAIN LOCALLY

4 HOSE, HEATER, HI-MILLER, 5/8IN X 2FT .......2................OBTAIN LOCALLY

5 EE18071 VALVE, LOCKING BALL, 3/8IN INLET 2

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 57

SOLENOID ASSY.

PAGE 58 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

SOLENOID ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE2916 RELAY, STARTER SOLENOID, 12V 2 2 EE41370 BRACKET, STARTER SOLENOID 1 3 EE41595 SHIELD, LEXAN COVER, SOLENOID 1 4 EE5736 DIODE, /AMP 2

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 59

RADIATOR ASSY.

26A

Radiator

Connection

PAGE 60 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

RADIATOR ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 TPN440 RADIATOR .........................................................1................INCLUDES ITEMS W/@

2 U45546860 GUARD 1 3 U75316330 FAN GUARD 1 4 U75316371 FAN GUARD 1 5 U75316312 GUARD 1 6@ 24850083 SHROUD 1 7 U45977221 BRACKET 1 8 U98116931 MOUNTING 1 9 U45977201 BRACKET 1 10 U45010062 WATER PUMP 1 11 145306880 FAN 1 12 U10267271 BRACKET 1 13 U45976820 BRACKET 1 14 U10267291 BRACKET 1 15 145996051 GASKET, THERMOSTAT 1 16 145206230 THERMOSTAT 1 17 944-116 VALVE, DRAIN, MINI BALL 1/4IN NPT 1

18 HOSE, DRAIN, INSTA-GRIP 3/8-13.5IN............ 1.................MAKE LOCALLY

19@ 24850072 RADIATOR CAP 1

20@ HOSE,1/4IN I.D. X 32IN .....................................1................MAKE LOCALLY

21 EE46221 SENSOR, COOLANT LEVEL 1 22 0180067 CLAMP 4 23 U45537130 HOSE, RADIATOR UPPER 1 24 U45537140 HOSE, RADIATOR LOWER 1 25 MEC000788 SENSOR, WATER TEMP. 1 26 EE10696 KIT, WIRING HARNESS COOLANT SENSR 1 26A EE22218 SPLIT LOOM, 3/8IN 3FT

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 61

AIR FILTER ASSY.

PAGE 62 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

AIR FILTER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 135016350 AIR FILTER ASSY. .............................................1................INCLUDES ITEMS W/@

2 W14501020 COVER 1 3@ 26510402 INDICATOR 1 4@ 26510418 BRACKET 1 5@ 135326206 ELEMENT, AIR FILTER 1

6@ BODY .................................................................1................NOT SERVICED SEPARATELY

7@ 26510194 VALVE 1 8 21825194 CLAMP 2 9 U35597790 HOSE 1 10 U30976791 BRACKET 1

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 63

ENGINE EXHAUST ASSY.

PAGE 64 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

ENGINE EXHAUST ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE54297 EXHAUST FLEX 1 2 EE9925 INSULATION, GLASS GASKET TAPE 1 3 EE41113 CIA, U-STYLE, ZIN PLATED 2 4 EE40950 SILENCER, 2 IN IN/OUT W/ BLANKET ASSY. 1 5 IBJB2SI6CSGA COVER, BLANKET ASSY 1 6 EE41076 ELBOW, EXHAUST 2 IN 1 7 EE6971 ASSY, W/ FLANGE & NIPPLE, EXHAUST 1 8 EE16610 RAIN CAP, ALUM, 2-1/2IN 1

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 65

ENGINE OIL ASSY.

PAGE 66 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

ENGINE OIL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 U98436350 OIL FILLER CAP 1 2 052100400 SEAL, O-RING 1 3 140517050 OIL FILTER 1 4 MEC003654 SENSOR, OIL PRESSURE 1

4A ADAPTER, BSPT-2-2 .........................................1................OBTAIN LOCALLY

5 EE18072 VALVE, LOCKING BALL, BRASS, 1/2IN FNPT 1

6 HOSE, OIL DRAIN, GOODYEAR .....................1................MAKE LOCALLY

INSTRA-GRIP 3/8IN X 16 IN. 7 218P-4 PLUG, OIL DRAIN, 1/4 IN. NPT BRASS 1 8 EE7314 OIL DRAIN, PLACARD 1

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 67

CONTROL PANEL ASSY.

PAGE 68 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

CONTROL PANEL ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE40941 COVER, TOP, CONTROL AND CIRCUIT BREAKER 1 2 EE40940 FRAME, BOX, CONTROL AND CIRCUIT BREAKER 1 3@ EE40944 PANEL, FRONT, CONTROL PANEL 1 4@ EE40945 HINGE, FRONT RAIL 1 5 EE40946 PANEL, FRONT, CIRCUIT BREAKER 1

6 EE40942 ASSY, FRONT CONTROL PANEL W/ HINGE ........................1 ..............INCLUDES ITEM W/@

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 69

CONTROLLER ASSY.

To Engine

12A

12B

PAGE 70 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

CONTROLLER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE30144 CONTROLLER, ENG. & GEN., 1 MEC-20, 12/24VDC

2 EE26384 RELAY, 8 BLADE DPDT, 12VDC, 10A 1 3 EE26385 BASE, RELAY, SNAP/SURFACE MOUNT 1 4 EE23991 CONTROLLER, SPEED UNIT, 12/24V 1 5 EE35388 MODULE, OUTPUT EXPAN., MEC 2/20 W/CABLE 1

6 EE26108 BLCK, FUSE HOLDR, WEIDMULLER, 1 POWER COMM

7 EE26096 BLOCK, TERMINAL, SAK 2.5-WEIDMULLER 41 8 EE41056 PANEL, BACK, MEC 20 1 9 EE41503 WIRE HARNESS 1

10 EE6010 FITTING, CONDUIT, NON-METAL., 2IN, 90 DEG 1

11 EE26135 RETAINER, HLDDWN WIRE, MINI RELAY, 8 1 12 MEC006950 CABLE, RJ45, STP, CAT5E, 6' 1 12A MEC006885 CABLE, ADAPTER, DB9M/RJ45 1 12B MEC006901 CABLE, ADAPTER, D39F/RJ45 1 13 EE9949 NUT, SHAFT LOCK, POTENTIOMETER 2

14 EE26026 POTENTIOMETER, 2K OHM +/-5%, 1 10 TURN, 2W

15 EE2115 POTENTIOMETER, 5K OHM +/-5%, 1 10 TURN, 2W

16 EE5812 FUSE, 10 AMP, GOULD SHAWMUT, MIDGT 1 17 EE41430 LANYARD, CONTROL PANEL 21 -1/2 IN LNG 1 18 EE41444 WIRE HARNESS, CONTROL BOX 1 19 EE5980 CONDUIT, POLY TUFF TUBING, BLACK 1

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 71

SADDLEBOX ASSY.

PAGE 72 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

SADDLEBOX ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE5811 FUSE, 5 AMP .....................................................2................1 PHASE UNITS

1A EE5811 FUSE, 5 AMP .....................................................3................3 PHASE UNITS

2 761594-01 VOLTAGE REGULATOR 1

3 EE10470 TRANSFORMER, CURRENT, 100:5 .................2................1 PHASE UNITS

3A EE10476 TRANSFORMER, CURRENT, 50:53 .................3................3 PHASE UNITS

4 EE6010 FITNG, CONDU., NON-METAL, 2IN, 90 DEG 1 5 EE6023 CONNECTOR, SWIVELLOK 1 6 A-527066-1 FUSE, 5 AMP, SLOW BLOW 1 7 EE5759 BLOCK, MIDGET FUSE TYPE, 3 POLE 1

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 73

CIRCUIT BREAKER ASSY.

PAGE 74 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

CIRCUIT BREAKER ASSY.

NO. PART NO. PART NAME QTY. REMARKS

1 EE41018 GROUND 1 2 EE41019 NEUTRAL 1

3 EE40948 BRACKET, SUPPORT CIRCUIT BREAKER .....1................1 PHASE UNITS ONLY

4 EE10997 CB, CUTLER HAMMER, 3-POLE, 100A ...........1................1 PHASE UNITS ONLY

4A EE38966 CB, CUTLER HAMMER, 3 POLE, 30A ..............1................3 PHASE UNITS ONLY

5 EE41048 BUS BAR, LONG, 1/4 IN COPPER BAR 1

6 EE41047 BUS BAR, SHORT, 1/4 IN COPPER BAR .........1................1 PHASE UNITS ONLY

6 EE41047 BUS BAR, SHORT, 1/4 IN COPPER BAR .........2................3 PHASE UNITS ONLY

7 EE6009 CONDUIT, FITTING, 90°, NONMETALLIC 1 8 EE5980 CONDUIT, 52 IN LONG 1

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 75

CAMLOK ASSY.

Housing

Neutral

Ground

Camlok

Kit

Circuit

Breaker

PAGE 76 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

CAMLOK ASSY.

NO. PART NO. PART NAME QTY. REMARKS 1@ EE40216 BOX, CONTINUOUS HINGE, HOFFMAN 1 2@ EE8314 PANEL, WELL, CAMLOK CONNECTION 1 3@ EE6382 RECEPTACLE, PNL MNT, FEMALE, GREEN 1 4@ EE6379 RECEPTACLE, PNL MNT, FEMALE, WHITE 1 5@ EE6380 RECEPTACLE, PNL MNT, FEMALE, RED 1 6@ EE6378 RECEPTACLE, PNL MNT, FEMALE, BLACK 1 7@ EE41040 COVER, HINGED, BLACK 1 8@ EE41044 COVER, HINGED, GREEN 1 9@ EE41043 COVER, HINGED, WHITE 1 10@ EE41041 COVER, HINGED, RED 1 11@ EE23020 PLACARD, VINYL, GROUND 1 12@ EE23019 PLACARD, VINYL, NEUTRAL 1 13@ EE23016 PLACARD, VINYL, LEG 1 1 14@ EE23017 PLACARD, VINYL, LEG 2 1 15@ EE41471 COVER, CAMLOK PNL, INSIDE 1 16@ EE41540 TOP, COVER, CAMLOK PNL, INSIDE 1 17@ EE41546 BOTTM, COVER, CAMLOK PNL, INSIDE 1 18@ EE6004 CONDUIT, FITTING, STR, 2IN 1 19@ EE5980 CONDUIT, TUBING, 23 IN 1 20@ EE6010 FITTING, CONDUIT, 90-DEG, 2IN 1

21@ EE41047 BUS BAR, SHORT, 1/4 IN COPPER BAR .........2................ 3 PHASE UNITS ONLY

22@ EE41048 BUS BAR, LONG, 1/4 IN COPPER BAR 1

23 EE40866 CAMLOK ASSY. .................................................1................INCLUDES ITEMS W/@

24 EE40056 KIT, PADLOCK, BOX 1 25 EE6449 DECAL, DANGER HIGH VOLTAGE 1

26 EE6381 RECEPTACLE, PNL MNT, FEMALE, BLUE ......1................3 PHASE UNITS ONLY

27 EE23018 PLACARD, VINYL, LEG 3 ..................................1................3 PHASE UNITS ONLY

28 EE41042 COVER, HINGED, BLUE ...................................1................3 PHASE UNITS ONLY

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 77

TERMS AND CONDITIONS OF SALE — PARTS

PAYMENT TERMS

5. Par ts must be in new and resalable

Multiquip reser ves the right to quote and

who use our products as integral parts of their

LIMITATIONS OF SELLER’S LIABILITY

liable for loss of proﬁ t or good will or for any

connection with the sale of its products. Apart

statutory, which extend beyond the description

Terms of payment for parts are net 30 days.

FREIGHT POLICY

All parts orders will be shipped collect or prepaid with the charges added to the invoice. All shipments are F.O.B. point of origin. Multiquip’s responsibility ceases when a signed manifest has been obtained from the carrier, and any claim for shortage or damage must be settled between the consignee and the carrier.

MINIMUM ORDER

The minimum charge for orders from Multiquip is $15.00 net. Customers will be asked for instructions regarding handling of orders not meeting this requirement.

RETURNED GOODS POLICY

Return shipments wil l be accepted and credit will be allowed, subject to the following provisions:

1. A Returned Ma terial Authoriza ti on must be approved by Multiquip prior to shipment.

2. To obtain a Return Material Authorization, a list must be provided to Multiquip Parts Sales that deﬁ nes item numbers, quantities, and descriptions of the items to be returned.

a. The parts numbers and descriptions

b. The list must be typed or computer

c. The list must state the reason(s)

d. The list must reference the sales

e. The list must include the name

3. A copy of the Return Material Authorization must accompany the return shipment.

4. Freight is at the sender’s expense. All parts must be returned freight prepaid to Multiquip’s designated receiving point.

must match the current parts price list.

generated.

for the return.

ord er( s ) o r in vo i ce(s ) un der which the items were originally purchased.

and phone number of the person requesting the RMA.

co ndition , in th e ori ginal Multiqui p package (if any), and with Multiquip part numbers clearly marked.

6. The following items are not returnable:

a. Obsolete parts. (If an item is in the

price book and shows as being repla ced by an other ite m, it is obsolete.)

b. Any parts with a limited shelf life

(such as gaskets, seals, “O” rings, and other rubber parts) that were purchased more than six months prior to the return date.

c. Any line item with an extended

dealer ne t price of les s than $5.00.

d. Special order items.

e. Electrical components.

f. Paint, chemicals, and lubricants.

g. Decals and paper products.

h. Items purchased in kits.

7. The sender will be notiﬁ ed of any material received that is not acceptable.

8. Such material will be he ld for five working days from notiﬁ cation, pending instructions. If a reply is not received within five days, the material will be returned to the sender at his expense.

9. Credit on returned parts will be issued at dealer net price at time of the original purch as e, le ss a 15 % res to cking charge.

10. In cases where an item is accepted, for which the original purchase document can not be determined, the price will be based on the list price that was effective twelve months prior to the RMA date.

11. Credit issued will be applied to future purchases only.

PRICING AND REBATES

Prices are subject to change without prior notice. Price changes are effective on a speciﬁ c date and all orders received on or after that date will be billed at the revised price. Rebates for price declines and added charges for price increases will not be made for stock on hand at the time of any price change.

sell direct to Government agencies, and to Original Equipment Manufacturer accounts

own products.

SPECIAL EXPEDITING SERVICE

A $ 35.00 surcharge will be added to the invoice for special handling including bus shipments, insured parcel post or in cases where Multiquip must personally deliver the parts to the carrier.

Multiquip shall not be liable hereunder for damages in excess of the purchase price of the item with respect to which damages are claimed, and in no event shall Multiquip be

other special, consequential or incidental damages.

LIMITATION OF WARRANTIES

No warrant ies, express or implied , are made in connection with the sale of parts or trade accessories nor as to any engine not manufactured by Multiquip. Such warranties made in connection with the sale of new, complete units are made exclusively by a statement of warranty packaged with such units, and Multiquip neither assumes nor authorizes any person to assume for it any other obligation or liability whatever in

from such written statement of warranty, there are no warranties, express, implied or

of the products on the face hereof.

Effective: February 22, 2006

PAGE 78 —MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11)

NOTES

MQP20P STANDBY GENERATOR • OPERATION AND PARTS MANUAL — REV. #1 (11/28/11) — PAGE 79

OPERATION AND PARTS MANUAL

HERE’S HOW TO GET HELP

Multiquip Inc trademarks are the property of their respective owners and used with permission.

This manual

The information and speciﬁcations included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change speciﬁcations, design or the information published in this publication at any time without notice and without incurring any obligations.

PLEASE HAVE THE MODEL AND SERIAL

NUMBER ON-HAND WHEN CALLING

United StateS

Multiquip Corporate Ofﬁce MQ Parts Department

18910 Wilmington Ave. Carson, CA 90746 Contact: mq@multiquip.com

Service Department Warranty Department

800-421-1244 310-537-3700

Technical Assistance

800-478-1244 Fax: 310-943-2238

Tel. (800) 421-1244 Fax (800) 537-3927

Fax: 310-537-4259 800-421-1244

800-427-1244 310-537-3700

310-537-3700

Fax: 800-672-7877 Fax: 310-637-3284

Fax: 310-943-2249

mexico United Kingdom

MQ Cipsa Multiquip (UK) Limited Head Ofﬁce

Carr. Fed. Mexico-Puebla KM 126.5 Momoxpan, Cholula, Puebla 72760 Mexico Contact: pmastretta@cipsa.com.mx

Tel: (52) 222-225-9900 Fax: (52) 222-285-0420

Unit 2, Northpoint Industrial Estate, Globe Lane, Dukinﬁeld, Cheshire SK16 4UJ Contact: sales@multiquip.co.uk

Tel: 0161 339 2223 Fax: 0161 339 3226

Canada

Multiquip

4110 Industriel Boul. Laval, Quebec, Canada H7L 6V3 Contact: jmartin@multiquip.com

Tel: (450) 625-2244 Tel: (877) 963-4411 Fax: (450) 625-8664

, the MQ logo and the MQ Power logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other

MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.

Your Local Dealer is:

Multiquip MQP20P User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual