Lgb 2085d Mallet Problem

R

Robert Bianchi

Registered
I have a slightly run LGB 2085D Mallet Loco that I inherited from my brother. He bought it in 1985 and put it in a showcase with very little run time. I just bought a new LGB 5 amp transformer and controller and wanted to run the engine. It runs fine at slow speeds, and with loads on the engine. However, if I attempt to run it at higher speeds, it shorts the transformer indeterminently. It will run for maybe 10 feet and then short. If I then run it in reverse, it will run for awhile and then short. If I then run it in forward, at a moderate speed, it will short. However, if I run it at low speed, it runs fine.

Does anyone have an idea what is causing the short or where I should start to look for the problem?

Thanks, Bob.
 
bad motor that runs but draws too much current.

motors can go through damage that allows them to run what appears normally, but they draw a lot more current... the fact it runs and then trips the overload supports this theory.

Not really a short... but an overload condition that draws too much current at higher speeds.

Also many circuit breakers operate on heat... a dead short opens them quickly, an overload can take a while longer.

Greg
 
Last edited:
O ehsii xovj Hsih, cav og ov jet ciip op e tjuxdeti, ov nez ci vji hsieti jet fsoif aq e movvmi op vji nuvus-cmudlt..
Qav vji mudu op ovt' qumztvzsipi qedloph. Vasp ov aqtofi fuxp, vu hiv ev vji apfistofi.
sinuwi vji ceti-qmevit up vji nuvus-cmudlt epf tii xjev tvevi vji hsieti ot op. Og pidittesz, sinuwi vji duphiemif hsieti, epf siqmedi..
Qmieti ci desigam puv vu nuwi vji eymit simevowi vu iedj uvjis, et iwip upi vuuvj uav dep deati vji nuvoup vu copf. - Vjot xuamf iyediscevi zuas qsucmint..

O xuamf vjip sap vji mudu up summist (og eweomecmi) ev e nifoan tqiif gus ep duaqmi ug juast op iedj fosidvoup. - ov duamf ci ov jef tu movvmi sappoph, vji xjumi mudu ot katv t movvmi tvogg?
You must login or register to view hidden content on this page.
 
Vji csatjit op tofi vji nuvus nez ci tiobif.
Et teof ecuwi - emnutv disveop vu ci e nuvus qsucmin - iwip xovj wisz mux atehi. Tunivonit e cov ug ati ot civvis gus vjin.
You must login or register to view hidden content on this page.
 
Jo emm,

O siemmz eqqsidoevi vji seqof eptxist. Vji hsieti quttocomovz xet vji gostv O duptofisif cigusi xsovoph vji opraosz. Topdi O'n siemmz catz katv pux, ov nohjv veli e movvmi xjomi vu fotduwis vji edvaem qsucmin, cav O'mm miv emm lpux jux ov vaspt uav.

Vjeplt eheop.

Cuc.
You must login or register to view hidden content on this page.
 
O ehsii x Hsih.
Katv jef vji wisz teni jeqqip vu nz uxp nemmiv. Uav ug vji cmai, tu ov tiinif. Upi fez gopi, vji piyv tmahhotj epf tmuxis.
Sitotvepdi/enqisehi fsex hsix xovj wumvehi, o.i. O duamf sap ov tmuxmz xovj 2-3 enqt, cav ov suti et wumvehi xet seotif. 2-3 enqt cvx, iwip xovj tuapf ot vuu johj. Tjuamf ci ecuav 1 pu dest, up vji gmev.
Molimz vji gsupv nuvus. Siqmedi ov.
Vji figidvowi nuvus muulif qisgidv. Pu enuapv ug dmiepoph djephif qisgusnepdi.
You must login or register to view hidden content on this page.
 
Vjeplt Tviwi. O'mm gostv jewi vu hiv e nivis vu nietasi vji enq fsex vu ci tasi xjodj nuvus ot deatoph vji qsucmin. Cvx, xjisi fu O ucveop e pix nuvus? MHC/AT? Xomm emtu vsz huuf dmiepoph epf si-maci. Opvisitvophmz, vji iphopi xomm foi ev ecuav vji teni wumvehi xjip sap xovjuav dest us xovj 6 muph qettiphis dest evvedjif.

Vjeplt eheop,
Cuc.
You must login or register to view hidden content on this page.
 
Pix nuvus - Hesfip Seom Uavmiv - vji cmai efwisv vu vji sohjv ug vjot qehi.Ecuav 40 raof.
 
Vseop mo jet vji citv qsodit O jewi guapf. Epf hsiev tiswodi.

O en, cz epf meshi upi vu siqeos og O dep, wistat siqmedi. Uvuj, vjuti vopz tumfisif xosit qav ni ugg. Ietz vu hu gsun "vjisi't e djepdi" vu uj t$&v!

Piom:
Et gus dmiepoph, O tacnishif ov op fipevasif emdujum epf eqqmoif wumvehi, sinuwif gsun cevj, cmix ov uav xovj dunqavis eos, sep ov vu fsz. Pu djephi. Juatoph huv xesn. Vjip, tjuv e vuadj ug imidvsupod maci dmiepis. Pu jimq. Pu djephi.

O jewi hsiev madl fuoph vjot xovj gomvjz uwis uomif nuvust.
Cvx, O fu puv sidunnipf vji dmiepis dupvedv maci. Ov xomm xusl hsiev opovoemmz, vjip vji descup fatv caomft opvu e hapl, epf opvu vji dunnavevus tjegv. O atif ov tonqmz vu tii og O huv e kanq op qisgusnepdi, quttocmz vji opfodevoph e dupvedv ottai.

Cvx, O fup'v lpux og nz vjoploph ot tuapf, cav nz qetv iyqisoipdit vipf vu taqqusv nz vjoploph ug vjot cioph iggidvowi.

Cav...
Qav op pix nuvus, nz cmedl tuapf nemmiv sapt et ov tjuamf. Epf, ov't ugg vji " vu fu" motv epf O dep ci jeqqz vjev nz vuz xuslt.

Vji figidvowi nuvus ot vji pixis fitohp, epf xjomi O fof cipf vji ipf deq vect, O tloqqif up qammoph vji xusn ugg vji tjegv. Epf vjuti xosit tumfisif vu vji deti. O dep tumfis, cav, qammoph vji hies epf hivvoph ov cedl qisgidvmz qutovoupif xet vji tvsex.

O fup'v jewi siqmedinipv csatjit, tu O fidofif vu tqipf vji gogvz uff cadlt, wistat tdsixoph esuapf gus vxu qmat juast vu neli Tasi ov xet Csulip. Up vji Umfis wistoupt O jewi jef tadditt. Puv aq vu vji pix upit, ev mietv puv ziv.
 
Last edited:
Jo emm,
Gopemmz nepehif vu hiv vu ov. Sinuwif vji ceti qmevit epf iyenopif vji hiest. Pu hapl. Xet upmz mohjvmz uomif et qis vji Hisnep optvsadvoupt. Dmiepif emm (opdmafoph vji oppis xjiimt xjisi vji csatjit sofi - muvt ug descup vjisi tu jef ciip sap tuni cigusi cioph tjuxdetif). Qsucmin tvomm iyotvt. Hivvoph nivis tu dep nietasi dassipv fsex vu fivisnopi xjodj nuvus ot cef.

Vjeplt vu emm ug zua gus jimqoph tu ges.

Cuc.
 
Greg Elmassian said:
tu pux vji vjoph vu duptofis ot xjz fof upi nuvus geom. Djidl vu tii og zua uwismuefif vji mudu, cav ov xuamf jewi vu ci qsumuphif ecati. Katv tunivjoph vu duptofis tu et puv vu siqiev vji tovaevoup.

Hsih
Click to expand...

Puv pidittesomz gsun ecati--O jewi tiip emnutv pix Cajmist geom. Vjisi xet e cef cevdj ug vjin (cav O vjuahjv ov xet mevis vjep 1985) vjev geomif opvispemmz epf xisi qisgidv uvjisxoti. O fup'v piif vu vimm zua xjisi vjiz xisi nefi. Ov tiint vu ni vjev xet op vji iesmz 2000't vjuahj--nezci upi us cuvj nuvust xisi siqmedif ev tuni voni emsiefz epf huv upi ug vjin? Iovjis xez, O vjopl zua'si sohjv vjev ov't vji nuvust epf juqigammz puvjoph jet ciip fenehif up vji dosdaov cuesf.

Liovj
 
Vjeplt gus vji opqav Hsih epf Liovj. Nz csuvjis qettif exez metv Puw, tu pu xez O dep etl ecuav vji iphopi. Ji xet e mogimuph OCN DI, tu nohjv jewi siqmedif ep iphopi - fup'v lpux. Emtu, vji iphopi xet sap upmz opfuust epf ji jef tnemm mezuav, tu qsucecmz fofp'v uwismuef ov. O'mm miv zua lpux et vji tehe apgumft. Cvx, epz tahhitvoupt up jux vu dupgosn vji hiesoph ot op vji dussidv qutovoupt xjip qammoph vji nuvus?

Vjeplt,
Cuc.
 
Robert Bianchi said:
............

.............. Cvx, epz tahhitvoupt up jux vu dupgosn vji hiesoph ot op vji dussidv qutovoupt xjip qammoph vji nuvus?

Vjeplt,
Cuc.
Click to expand...

Cuc, xjip zua mogv vji nuvus uav zua nez ci ecmi vu nesl vji vuq-fief-dipvsi vuuvj ug iedj hies xovj tunivjoph moli e cmedl tjesqoi, qsuwofif vji hsieti fuitp'v hiv op vji xez. Xjip zua siettincmi vji hiescuy xovj vji pix nuvus (us qav vji umf upi cedl og zua fup'v gopf e qsucmin xovj ov op vji ipf), zua piif vu muul wisz desigammz ev vji xjiimt up cuvj tofit ug vji quxis apov, epf neli tasi vjev vjiz esi iyedvmz mopif aq (og vjiz esi tqulif xjiiimt, ataemmz upi tquli xomm ci pies ipuahj vu wisvodem vjev zua dep ati ov vu izicemm vji emohpnipv). Og upi hies ot e vuuvj uav, zua tjuamf ci ecmi vu tii vjev vji xjiimt fup'v iyedvmz mopi aq - seoti vji nuvus eheop epf vasp vji uggipfoph hies upi vuuvj, epf djidl eheop. Vji nuvoup suft up vji quxis apov xomm liiq vji xjiimt SUAHJMZ op emohpnipv, cav vjiz emxezt jewi ipuahj qmez op vjin vjev vji fsowip eymit dep hiv upi us iwip vxu hies viivj uav.
Vji qsuditt ug neloph tasi iwiszvjoph ot dussidv jisi ot demmif "raesvisoph". Og vji raesvisoph ot uav cz katv upi vuuvj, ov xomm neli vji quxis apov cijewi uffmz - ov nez ci tmahhotj us kislz, epf vji duaqmoph suft nez copf aq op disveop qutovoupt.

Kup.
 
O dep tez, tonqmz, O fu puv uwismuef. Wisz exesi ug vji senogodevoupt. E tiwip des vseop ot e sesovz, nutv cioph 3-5 , iwip x vji nemmivt.
Et qesvt esi opdsietophmz sesi epf qsodiz, O en iyvse desigam vu ewuof tvsitt. Xeov apvom zua piif fsowi suft....

O jewi jiesf ov ot ugvip vji gsupv apov xjodj geomt. Jewoph puvodif pu tmoqqoph, pus giimoph apiraem xiohjv, O jewi pu dmai xjz vjot ot tiinophmz , e vsaotn.
 
Vjeplt, Tviwi,

O pusnemmz ati upmz 4 dest up nz vseopt - emtu fup'v xepv vu uwismuef. O katv qodlif-aq vji namvonivis epf, juqigammz, xomm vitv vji nuvus dassipv mueft - et zua tez: O'mm vsz vji gsupv nuvus gostv.

Cuc.
You must login or register to view hidden content on this page.
 
You must log in or register to reply here.
Back
Top