Magnum MLT 4250 Specifications

OPERATING/PARTS MANUALMLT 4250

1234561. FUEL FILLER LOCATION (under door): Use clean DIESEL FUEL ONLY.2. RADIATOR ACCESS PANEL: Remove this panel for engine coolant service.3. CO

710134221369125811MAIN CONTROL PANEL COMPONENTS1. MAIN CIRCUIT BREAKER (90A): This breaker will disconnect power to the connection lugs.2. LUG DOOR SA

MAGNUM DIGITAL CONTROLLER (MDC)The Magnum Digital Controller (MDC) is an enhanced digital generator controller used to start, stop and monitor theoper

• “ALARM CANCEL” ButtonWhen an alarm is activated, either visually or audibly, press this button to silence or cancel the alarm.• “FAULT RESET” Button

ENGINE MONITORINGEngine information is shown on the Liquid Crystal Display (LCD) window in a toggling manner with the Generatorinformation after the f

The history of alarms or codes of the unit are saved in the digital controller. The mostrecent alarm or code is the first to be listed, with the time/

MAGNUM DIGITAL CONTROLLER (MDC) INFORMATION DISPLAYS, FUNCTIONS ANDRESETThe Magnum Digital Controller (MDC) constantly monitors vital generator and en

MAGNUM DIGITAL CONTROLLER (MDC) - LIST OF POSSIBLE ALARMS/DESCRIPTIONSShut down and warning fault conditions and the displayed message are described i

28 Vgen unbal SD NOThe generator voltage is unbalanced more than the value of Volt unbal setpoint.29 Wrn ECU Alarm WRN NOECU alarm list is not empty.

ADJUSTING THE DISPLAY BACK LIGHTINGThe backlighting on the Liquid Crystal Display (LCD) window may be adjusted brighter or darker by the operatorwhene

2INTRODUCTIONThis manual provides information and procedures to safely operate and maintain the light tower and generator. Foryour own safety and pro

TIGHTEN CONNECTIONLUGS WITH A HEX WRENCHGENERATOR OUTPUT CONNECTION LUGSThe generator is equipped with connection lugs behind a door below the control

VOLTAGE SELECTOR SWITCHThe voltage selector switch is located behind the lug door, underneath the engine controller panel. The selectorswitch is a thr

AUXILIARY OUTLETSThe control panel is equipped with six outlets for running acces-sories or tools from the generator. Power is supplied to theoutlets

MAIN CIRCUIT BREAKERThe main circuit breaker is located on the main control panel. When the breaker is in the OFF “O” position, power isinterrupted b

INCOMINGUTILITYPOWERWHITE = INCOMING UTILITY POWERGRAY = NORMAL UTILITY POWER CIRCUITBLACK = EMERGENCY GENERATOR POWER CIRCUITUTILITYMETERTRANSFERSWIT

LIGHT TOWER SET-UP1. For maximum light coverage locate tower at ground level or in a spot higher than the area being illuminatedby the lamps.2. Place

IJJK, L, NMOQ1. Remove the mast cradle locking pin from the mast cradle (I).2. Check both sets of mast cables for excessive wear or damage. Make sure

STOP DETAIL V DETAIL WVUSR,T WDETAIL RDETAIL SDETAIL TDETAIL U1. Set up and level the trailer as described on page 25, and follow steps 1-3 on page 26

LIGHT TOWER START UPBefore starting the light tower, carefully read the pre-start check list. Make sure that all of the items are checkedbefore tryin

4. Press the green “ENGINE START” button. The Prestart (Preheat) screen will be displayed (if equipped)and a countdown will begin from 20 seconds to

TABLE OF CONTENTSPageINTRODUCTION ...2TA

10. Once the engine starts it will immediately begin speeding up to a constant 1800 rpm. On units withisochronous engine governing, the engine may hun

SHUTTING DOWNWhen you have finished using the light tower, proceed with shut down as follows:1. Remove any loads from the auxiliary outlets.2. Switch

32LOWERING THE TOWER1. Shut down the lights and engine. Allow the lights to cool 10-15 minutes before lowering the tower.2. Turn the upper mast winch

5234133REMOVING THE LIGHTS FOR TRANSPORTATION1. On units equipped with quick disconnect fittings for the lights, disconnect the powercords from the ju

LIFTING THE TRAILERWhen lifting the light tower and trailer, attach any slings, chains or hooks directly to the central lifting eye. The liftingeye i

35ENGINE MAINTENANCENote: During the first 50 hours of operation, avoid long periods of no load or sustained maximum load operation. Ifthe light tow

DERATING FOR ALTITUDEAll light towers are subject to derating for altitude and temperature; this will reduce the available power for operatingto tools

TROUBLESHOOTING THE LIGHTSMAST LIGHTS OFF BUT BALLAST INDICATORS ON CONTROL PANEL ARE ON:1. Mast light is too hot. Allow light to cool 10-15 minutes

WARNINGWARNUNGADVERTISSEMENTADVERTENCIAWARNUNGADVERTISSEMENTADVERTENCIAWARNINGGENERATEUR PUET DEMARRER AUTOMATIQUEMENT RESULTANTEN DES ACCIDENTS DE PE

SECURE MAST IN TRANSPORTLOCK BEFORE LIFTING OR TOWING!DEN MAST VOR DEM ANHEBEN ODERABSCHLEPPEN IN DERTRANSPORTHALTERUNG SICHERN! VERROUILLEZ SOLIDEME

4This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to

Located onElectric WinchesMAST CONTROLMAST-STEUERUNGCONTROL DEL MÁSTILCOMMANDE DE MÂTTO VERTICALTO HORIZONTALMAST TELESCOPEMAST-TELESKOPMAST TELESCOPE

UNIT DECALS41ITEM NO. PART NO. QTY DESCRIPTION1 13136 1 Decal set, MLT42502 12191 1 Decal, label set - MLG253 22960 -- Decal, breaker 20 Amp4 23203 -

423312313783104316592032201520161718872627821201720232427282930252234351914131211MANUAL WINCH MAST ASSEMBLY

43ITEM NO. PART NO. QTY DESCRIPTION1 11954 1 Coil cord, mast2 16600 2 Winch, manual3 60584 2 Nut, .750-10 nylock G5 yellow zinc4 11902B 1 Weldment, ma

444312317451718182356414019397201914810241828262339222125414238332781018183132343536371229151413121191081630ELECTRIC WINCH MAST ASSEMBLY

45ITEM NO. PART NO. QTY DESCRIPTION1 11954 1 Coil cord2 12875B 2 Cover, winch contactor3 11293 2 Contactor, electric winch - warn4 65049 2 Relay, 12V

46FRAME AND COMPONENTS456, 69 7101111121314, 701518165657187219111911192021227123242625272829303132333435363738424140394243444545474849505146525355545

47ITEM NO. PART NO. QTY DESCRIPTION1 16270 1 Fitting, .375MNPT to .250 FNPT straight2 16271 1 Fitting, 90-.250NPTX.188 barb3 15142 1 Fitting, strt-.25

48ITEM NO. PART NO. QTY DESCRIPTION53 16830 1 Coupler - 2.00 ball/2.50 channel54 23367 1 Chain, safety - 7,800 lbs. rated55 12420B 1 Weldment, removab

49GENERATOR ASSEMBLYITEM NO. PART NO. QTY DESCRIPTION1 60165 8 Screw, M8-1.25X16 std hex G10.9 LB2 60166 16 Washer, M8 flat ZB DIN125 hardened TP2003

5Internal combustion engines present special hazards during operation and fueling! Failure to follow thesafety guidelines described below could resul

50ITEM NO. PART NO. QTY DESCRIPTION1 12109 1 Box cover, 2-gang plastic2 66100 4 Connector, 2 pos. Wago3 66101 2 Connector, 3 pos. Wago4 66102 1 Connec

51ITEM NO. PART NO. QTY DESCRIPTION1 12109 1 Box cover, 2-gang plastic2 66100 4 Connector, 2 pos. Wago3 66101 2 Connector, 3 pos. Wago4 66102 1 Connec

ENCLOSURE ASSEMBLY435619811147151013122119181617910563222320182245225262728

ITEM NO. PART NO. QTY DESCRIPTION1 25333W 1 Panel, back access2 12195 1 Gasket, radiator access plate3 11381 2 Fender, plastic4 11507W 1 Panel, right

12895436710111312141517161854AUXILIARY OUTLET PANEL ASSEMBLY

ITEM NO. PART NO. QTY DESCRIPTION1 65535 1 Clamp, 90° 3/4" 2 screw2 12248B 1 Weldment, outlet cover3 10081 1 Hinge, continuous - 11.00 in.4 1148

56AUXILIARY OUTLET PANEL OPTIONSPART NUMBER 12399Receptacle Panel (2x5-20R, 3xL6-30R, 1x50A)PART NUMBER 12402Receptacle Panel (2x5-20R, 3xL6-20R, 1x50

57ITEM NO. PART NO. QTY DESCRIPTION1 14130 2 Receptacle, 120V 20A GFCI2 14137 - Receptacle, 240V 30A twist lock3 18089 - Receptacle, 125/250V 50A twis

OVAL LIGHT ASSEMBLY33353412685711121098131413211719161827811820212425152271719161823263228313430362958

ITEM NO. PART NO. QTY DESCRIPTION1 60304 1 Screw, M5 x 25 pan hd phillips2 60447 1 Nut, M5 nylock3 13367 1 Assembly, aluminum ring4 13369 1 Lens, glas

6Towing a trailer requires care! Both the trailer and vehicle must be in good condition and securely fas-tened to each other to reduce the possibilit

LOWER RADIATOR HOSEENGINE COOLING ASSEMBLY12373126224521131415161781920961118102166023

ITEM NO. PART NO. QTY DESCRIPTION1 60034 12 Screw, .375-16X.750 hx ser flg2 60206 12 Washer, split lock .3753 60386 1 Washer, flat .3754 26305 1 Radia

11042149511371821261727236242510512134417182829ENGINE ASSEMBLY151622201983233303112623837343536

ITEM NO. PART NO. QTY DESCRIPTION1 21505 1 Assembly, air filter2 60009 4 Screw, M8X1.25X25 hx ser flg3 12990B 1 Bracket, air filter4 60018 14 Screw, M

CONTROL PANEL ASSEMBLY64372146108924651524211520717222319181316121411252627282526

ITEM NO. PART NO. QTY DESCRIPTION1 60160 3 Screw, M8X1.25X30 hx ser flg2 65287 3 Lug, terminal single #6-350 MCM3 12065 1 Channel, glastic4 12066 2 An

CONTROL BOX ASSEMBLY66799289977771010101316184213612155558111114171920232622252124272930333632353134

ITEM NO. PART NO. QTY DESCRIPTION1 12694W 1 Panel, top control box2 65619 1 Breaker, 90A, 3 pole3 65429 1 Breaker, 100A, 250V, 2 pole4 18556 1 Regula

567241398ITEM NO. PART NO. QTY DESCRIPTION1 18598 1 Hinge, controller panel - 18.752 60156 8 Screw, M5X0.8X16 pan hd phil3 60038 4 Nut, M5 hx ny

69TRAILER LIGHTS WIRING DIAGRAMITEM NO. PART NO. QTY DESCRIPTION1 10264 1 Harness, left side trailer2 10261 1 Harness, main trailer 40003 10265

SAFETY SYMBOL SUMMARYThis equipment has been supplied with numerous safety and operating decals. These decals provide importantoperating instructions

BRN 14GA240V BREAKER240V BREAKERBLK 10GABLK 10GABRN 14GA5913610 147811121516T5BLK 10GABLK 10GAGRN/YEL 10GACT-3L2 L3SHUNTL1CT-2CT-1BREAKERPAIR BLK 10GA

90215, ORG 8.07.08MDC CONTROLLER2 PIN PLUG (RPM)RPM INRPM GND3 PIN ANALOG INPUTSOIL INFUEL IN WATER INAI1AI2AI3NEUTRALCOM4L1 L2 L3CT NEUTRALL3L2L1REMO

72AC WIRING PANEL OPTIONS(TO GROUND)(TO NEUTRAL)(TO MAIN BREAKER)PART NUMBER 12399; Receptacle Panel (2x5-20R, 3xL6-30R, 1x50A)(TO GROUND)(TO NEUTRAL

73AC WIRING PANEL OPTIONS73(TO GROUND)(TO NEUTRAL)(TO MAIN BREAKER)PART NUMBER 12401; Receptacle Panel (2x5-20R, 4xL14-30R)PART NUMBER 13540; Recept

DC CIRCUIT WIRING DIAGRAM, DUAL ELECTRIC WINCHBATTERY 12VELECTRIC WINCH (OPTIONAL)BRNBLKBREAKERS50 AMPCIRCUITBRNREDBRNWHTBRNWHTREDRED2RED1BLK21REDBLKR

MAST JUNCTION BOX WIRING DIAGRAM75

REV: BPART NO: 1313411.07.08

8SPECIFICATIONSRead this manual carefully before attempting to use this light tower. The potential for property damage, personalinjury or death exist

9SPECIFICATIONSRead this manual carefully before attempting to use this light tower. The potential for property damage, personalinjury or death exist