kalmar reachstacker park brake failure analysis

8/9/2019 Kalmar Reachstacker Park Brake Failure Analysis

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DEPARTMENT OF MECHANICAL ENGINEERING

KALMAR REACHSTACKER

PARK BRAKE FAILUREP2 EXPERIENTIAL TRAINING REPORT

By E W Swartz 210026480

Contact !ta"#$% &2648146'60(2

&26464206881

L!ct)r!r% G* +orr"$

S),-!ct% E./!r"!nt"a# Tra"n"nat!% ( Octo,!r 2014

I !r!,y $w!ar tat t"$ "$ t! or""na# wor3 o t! a)tor* A## "nor5at"on o,ta"n! ro5 ot!r

$o)rc!$ a$ ,!!n )##y ac3now#!!*


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3/15

2

" Int!o#$tion

Ba$%g!on#

Figure 1 - Overview of Kalmar Reachstaker

C)55"n$ !n"n!

Ho& t'e (a!% b!a%e &o!%s)

T! /ar3 ,ra3! on t! 9a#5ar r!ac$tac3!r "$ a yra)#"c r!#!a$! $/r"n act"at! ,ra3!* T"$

5!an$ tat to r!#!a$! t! /ar3 ,ra3! a c!rta"n a5o)nt o /r!$$)r! n!!$ to ,! a//#"!? 1@+Pa*

On! /)5/ "$ r!$/on$",#! or $)//#y"n t"$ /r!$$)r!* T! /)5/ a$ a "r!ct $)ct"on #"n! to t!tan3 an a$ a /r!$$)r! #"n!? w"c /a$$!$ tro) a "#t!r? to t! a#! ,#oc3 an t!n to t!

,ra3!* T! /)5/ "$ an "nt!ra# /art o t! /ar3 ,ra3! $y$t!5*

A r!ac$tac3!r "$ a 5!can"ca# #"t"n 5ac"n! tat o/!rat!$ w"t a $/r!a!r? "n t"$ ca$! anEL+E $/r!a!r? w"c "$ attac! to "t$ r!tracta,#! ,oo5* T! 5ac"n! )cnt"on$ $"5"#ar#y to a

5o,"#! ar,o)r cran! "n t! way "t #"t$ conta"n!r$* It "$ a !ry 5an!)!ra,#! 5ac"n! "n t!

t!r5"na#* It "$ )$! to /ac3 t! t!r5"na#? "*!* #oa or o #oa ar,o)r tr)c3$ "n t! conta"n!r

t!r5"na#*


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3

P!oble* State*ent

R!ac$tac3!r$ ar! an "5/ortant /art o t!r5"na# o/!rat"on$ a$ t!y #oa an o#oa ar,o)r

tr)c3$ an /ac3 t! conta"n!r $tac3$ a$ /!r r!)!$t ro5 t! yar /#ann!r$ to !!ct"!#y #oatr)c3$ "n a $!)!nc! w"c acco55oat!$ t! !$$!# /#ann!r* On#y two o t!$! r!ac$tac3!r$

ar! ca/a,#! o an#"n conta"n!r$ on an o o t! ra"# car$* On! o t!$! 5ac"n!$ a ,!!n /)##! o)t o o/!rat"on )! to a /ar3 ,ra3! a"#)r!* T! /ar3 ,ra3! wo)# not "$!na!? not

a##ow"n t! 5ac"n! to /!ror5 "t$ )t"!$* T! $t)!nt wa$ ta$3! ,y t! S)/!r"nt!n!nt o t!

5o,"#! cran! wor3$o/ to $o#! t! /ro,#!5 a$ to wy t! /ar3 ,ra3! on t! 9a#5ar r!ac$tac3!r wo)# not "$!na!* In a"t"on to t"$ t! ,att!r"!$ wo)# con$tant#y ra"n an t!

5ac"n! wo)# n!! a -)5/ $tart? t"$ /ro,#!5 a#$o n!!! to ,! $o#! a$ "t ca)$! !#ay$ "n

/ro)ct"on*

Ob+e$ti,es

P!ror5 a a)#t "n"n ana#y$"$ to !t!r5"n! t! a)#t an "t$ root ca)$! or ca)$!$* !!#o/ a

$o#)t"on an r!/a"r t! 5ac"n! a$ $oon a$ /o$$",#! to 3!!/ t! 5!an t"5! to r!/a"r a$ #ow a$

/o$$",#!*

Planning

An RCA "ara5 ta3!n ro5 t! +a"nt!nanc! En"n!!r"n ;an,oo3 D t !* S!ct"on (? $ow$

ow to !!ct"!#y o a)#t "n"n an to not on#y $o#! t! /ro,#!5 ,)t to a#$o !t!r5"n! t!root ca)$!$ o a"#)r!$* T"$ "ara5 "$ $own "n a//!n". A

T! $t)!nt "r$t n!!! to co5/r!!n$"!#y $t)y ow t! /ar3 ,ra3! wor3$* T"$ "$ ,!ca)$!

w"to)t )##y )n!r$tan"n t! $y$t!5? "t wo)# not ,! a,#! to !!#o/ a /ro/!r $o#)t"on to t! /ro,#!5* At!r $t)y"n t! /ar3 ,ra3! $y$t!5 an ow t! !#!ctron"c$ an !#!ctr"ca# $y$t!5

"nt!rat!$ "nto t! yra)#"c$ t! $t)!nt co)# ,!"n to /!ror5 a)#t "n"n t!$t$* )r"n t! /!ror5"n o t!$! t!$t$ t! $t)!nt r)#!$ o)t "!r!nt /o$$",#! ca)$!$ a$ to wy t! /ar3 ,ra3!

o!$ not "$!na!* W!n a ca)$! "$ o)n an t! /ro,#!5 can ,! $o#! t! $t)!nt 5)$t

"n!$t"at! wy $o5!t"n a$ a"#! or wat ca)$! t! /art to a"#* T"$ w"## #!a to "n"n t!

root ca)$! o t! a"#)r! an t!n a $)"ta,#! $o#)t"on can ,! o)n to !n$)r! tat t! a"#)r! o!$not a//!n aa"n* In $ort? t! $t)!nt 5)$t%

• St)y ow t! /ar3 ,ra3! wor3$

• P!ror5 a)#t "n"n 7

• !t!r5"n! wy t! /ar3 ,ra3! o!$ not "$!na!

• !t!r5"n! wat t! root ca)$! o t! a"#)r! "$

• "n a $)"ta,#! $o#)t"on to t! a"#)r!


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(

TASK TITLE

W!!3 1 W!!3 2

St)y ow t! /ar3 ,ra3! wor3$

P!ror5 a)#t "n"n

!t!r5"n! wy t! /ar3 ,ra3! o!$ not "$!na!

!t!r5"n! wat t! root ca)$! o t! a"#)r! "$

"n a $)"ta,#! $o#)t"on to t! a"#)r!

-)" Rea$'sta$%e! . Kal*a! T'eo!eti$al Consi#e!ations

P*( Cal$lations

T! !)at"on$ ,!#ow ar! con$"!r! ,!ca)$! o t! /o$$","#"ty o /)5/ an 5otor a"#)r!*

V m=T m×62.83

∆ P × ηhm. m

F5 5otor "$/#ac!5!nt

T5 5otor tor)!

H/ /r!$$)r! "!r!nc! acro$$ 5otor /ort$

5*5 yra)#"c 5otorJ5!can"ca# !"c"!ncy =0*@70*@'>

T!n to ca#c)#at! 5otor $/!! an #ow rat!%

Qm= V m× nm

1000×ηvol.m


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)

o#*5 5otor o#)5!tr"c !"c"!ncy

B!or! con"r5"n 5otor $!#!ct"on? c!c3 tat t! tor)! "$ w"t"n 5an)act)r!r 5a."5)5a##ow! tor)!*

P)5/ "$/#ac!5!nt

V p=Qm ×1000

n p ×ηvol.p

F / /)5/ "$/#ac!5!nt

H/#!ali$ s/ste*)

T! yra)#"c $y$t!5 "n t! 9a#5ar r!ac$tac3!r "$ )"t! $"5/#! w!n "t co5!$ to t! ,ra3!$*T!r! "$ on! $)ct"on #"n! ro5 t! tan3 "nto t! /)5/ an t!n on! /)5/"n #"n! w"c o!$

ro5 t! /)5/ "nto t! " /r!$$)r! "#t!r o)$"n an t!n "nto t! a#! ,#oc3 w"c t!n

a##ow$ or /r!$$)r! r!)#at"on an /r!$$)r! acc)5)#at"on* At!r t! a#! ,#oc3 t!r! "$ a "r!ct /)5/"n #"n! w"c o!$ to t! ,ra3!* T"$ #"n! to t! ,r!a3 "$ )$! to r!#!a$! t! ,ra3! w!n t!

$o#!no" a#! "$ tr"!r!*

I t! /ar3 ,ra3! o!$ not "$!na!? t! $o#)t"on to $o#"n t"$ /ro,#!5 $o)# ,! $"5/#! a$

w!##* o##ow t! /at ,ac3 to t! tan3 ro5 t! ,ra3! #"n! an !t!r5"n! w"c /art$ orco5/on!nt$ ar! not wor3"n "n or!r to r!$o#! t! /ro,#!5* At!r t! /ro,#!5 "$ r!$o#!?

!t!r5"n! wat t! ca)$! o t! a"#! /art or co5/on!nt wa$*

It "$ a#way$ 5or! /r)!nt to c!c3 tat a## t! $5a## co5/on!nt$ ar! )nct"on"n /ro/!r#y ,!or!

/!ror5"n any t!$t$ on #ar!r co5/on!nt$* "r$t#y t!$t w!t!r a## t! !#!ctron"c$ ar! "n or!r*T"$ $o)# ,! on! ,y "$!na"n t! /ar3 ,ra3! at t! $w"tc to $!! " t! $o#!no" a#!

,!co5!$ !n!r"z!* I $o? t!n 5on"tor"n t! yra)#"c /"/!$? $o#!no" a#!$ an a#! ,#oc3


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,

co5/on!nt$ $o)# ,! t! $!con t"n to ,! on!* W!n "t "$ c#!ar tat t!r! "$ no a)#t tat can

,! #ocat! at t! a#! ,#oc3 t!n yo) can 5o! on t! n!.t co5/on!nt* )rt!r a#on t! #"n!

#!a!$ t! /r!$$)r! "#t!r w"c 5ay ,! ,#oc3! )! to "rt "n t! yra)#"c tan3 an ca)$"n t! /r!$$)r! acro$$ t! #"n! to ,! #ow!r* I t!r! "$ no ,#oc3a!$ o)n t!n a /r!$$)r! a)! $o)#

,! a//#"! to t! $y$t!5 to !t!r5"n! t! /r!$$)r! on t! /)5/"n #"n!* I t!r! "$ #)ct)at"on "n

t! /r!$$)r!? t!r! 5ay ,! a a)#t on t! /)5/* I t! /r!$$)r! "$ #ow!r tan !./!ct!? t!n t! /)5/ 5ay a#$o ,! t! ca)$! o t! /ro,#!5*

W!n "n!$t"at"n t! /)5/? "t $o)# ,! ta3!n "nto acco)nt tat t!r! 5ay a! ,!!n ca"tat"on

"n t! /)5/? w"c wo)# ca)$! #ow!r /r!$$)r!$* T! /)5/ w"## ow!!r $)!a# w!n ca"tat"on

a$ occ)rr!* I t"$ can ,! r)#! o)t #!a3a! $o)# ,! ta3!n "nto acco)nt* E"t!r #!a3a! o a"r

"nto t! /)5/ $y$t!5? "nt!rna# #!a3a! o t! /)5/ or #!a3a! o)t o t! /)5/ $y$t!5 at $o5! /o"nt "n t! $y$t!5 tat a$ not ,!!n toro)#y "n$/!ct!*

I a## o t! a,o! a$ ,!!n tr"! an no ca)$! can ,! o)n "t "$ /o$$",#! tat t! ca)$! o t!

/ar3 ,ra3! not "$!na"n co)# ,! 5!can"ca# an t! $/r"n$ o not r!#!a$! w!nyra)#"ca##y a//#"!*

-)- Kal*a! P!a$ti$al Consi#e!ations

T! /ar3 ,ra3! o t"$ 5ac"n! wo)# not "$!na!? /r!!nt"n nor5a# o/!rat"on o t!

5ac"n!* T)$ t! 5ac"n! co)# not ,! )$! "n /ro)ct"on* T"$ 5ac"n! "$ )$! to o#oa t!tra"n car$ an "$ on! o two r!ac$tac3!r$ ," !no) to ,! a,#! to /!ror5 t"$ -o,* On#y on! "$

)$! at a t"5! at t! ra"#? t!n t! ot!r o!$ ot!r 5"nor -o,$* So t!r! "$ on#y on! "a,#! $/ar!

r!ac$tac3!r "n t! $!n$! o #oa"n an o7#oa"n t! ra"#* T"$ "$ t!r!or! an "5/ortant5ac"n! or /ort o/!rat"on* T! /roc!$$ o a)#t "n"n can ,! $tr!n)o)$ " t!r! "$ no /#ann"n

"no#!*

An RCA "ara5 ta3!n ro5 t! +a"nt!nanc! En"n!!r"n ;an,oo3 Dt !* S!ct"on ( $ow$

ow to !!ct"!#y o a)#t "n"n to not on#y $o#! t! /ro,#!5 ,)t a#$o to !t!r5"n! t! root

ca)$!$* T"$ "ara5 can ,! $!!n "n a//!n". A*

T! /ar3 ,ra3! "$ a $/r"n act"at!? yra)#"c r!#!a$! 5!can"$5 w"c 5!an$ tat t!r! 5)$t

,! a ,)"#7)/ o yra)#"c /r!$$)r! or t! /ar3 ,ra3! to r!#!a$!* So "n 5y o/"n"on t!r! "$ on#y

two /o$$",#! ca)$!$? !"t!r t!r! "$ a /ro,#!5 w"t a co5/on!nt r!#at! to t! $o#!no" a#! ort!r! "$ no /r!$$)r! "n t! $y$t!5*


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P!i*a!/ ass*(tion

"r$t#y t! $t)!nt c!c3! t! $5a##!r o t! two ca)$!$? t! $o#!no" a#!* I o)n tat t!

$o#!no" a#! /#) wa$ corro!* T! $t)!nt t!n #"a"$! w"t t! !"c#! wor3$o/ an!#!ctr"ca# wor3$o/ to "n $)"ta,#! /)$7"n conn!ctor /"n$ =#)$> tat co)# ,! )$! to r!/#ac!

t! /#) to ". t! conn!ct"on* A $"! c)tt!r wa$ )$! to c)t t! w"r!$ -)$t ,!or! t! /#)* T!n aw"r! $tr"//!r wa$ )$! to c#!an )/ t! !#!ctr"ca# "n$)#at"on at t! t"/$ o t! w"r!$* T! $t)!nt

co)# t!n attac t! /)$7"n #)$ to t! w"r!$ an )$! t! /art o t! w"r! $tr"//!r w"c act$ a$a w"r! c#a5/ or #)$? w"c 3!!/$ t! w"r! an #) conn!ct!* T!n t! $t)!nt conn!ct! t!

w"r!$ to t!"r r!$/!ct"! /o$"t"on$* T! 5ac"n! wa$ $tart! )/? #!tt"n "t "#! an r!"n )/ t!

!n"n! to ,)"# t! n!c!$$ary /r!$$)r!? ,)t t! /ar3 ,ra3! wo)# $t"## not "$!na!* B!or! t!$t)!nt c!c3! or /r!$$)r! #o$$!$ "n t! $y$t!5 a "$c)$$"on w"t on! o t! art"$an$ wa$ a to

a$3 or $o5! a"c! a$ ! a !.t!n$"! tra"n"n on t!$! ty/!$ o 5ac"n!$* ;! r!co55!n!

tat t! $t)!nt c!c3 t! a#! ,#oc3 an t! ,ra3! o"# "#t!r ,!or! r!5o"n any #ar!rco5/on!nt$*

T! $t)!nt c!c3! t! a#! ,#oc3 ,y $tart"n )/ t! 5ac"n!? "#"n? an t!n $w"tc"n o ,!or! $#ow#y )nt"t!n"n t! /r!$$)r! r!#!a$! a#!* At!r o/!n"n t! r!#!a$! a#!? t!

yra)#"c o"# tat ca5! o)t o t! or""c! wa$ w"t! an oa5y* T"$ nor5a##y "n"cat!$ t!

/r!$!nc! o a"r w"t"n t! $y$t!5* At!r c!c3"n tat con"t"on o a## t! /#)$ on t! a#!

,#oc3 an t! attac5!nt$ an t!y a## $!!5! to ,! "n oo con"t"on !.c!/t t! /r!$$)r!r!#!a$!? w"c co)# ,! ,#own o/!n )"t! !a$"#y* !t? "t wa$ $t"## a n!c!$$ary /r!ca)t"on to

r!5o! t! a#! ,#oc3 an r!/#ac! "t w"t anot!r to c!c3 " t! /ro,#!5 wo)# ,! r!$o#!*

T"$ wa$ on! ,y c#o$"n t! ,a## a#! on t! yra)#"c #"n! to /r!!nt !.c!$$"! #ow oyra)#"c o"#* T!n a 655 a##!n 3!y wa$ )$! to #oo$!n t! ,o#t$ w"c !# t! a#! ,#oc3 "n

/#ac!* A## o t! attac5!nt$ w!r! t!n r!5o! a$ w!## a$ a## o t! $o#!no" /#)$* T!n

r!/#ac! t! a#! ,#oc3 w"t t! n!w on!* At!r t! n!w a#! ,#oc3 wa$ 5o)nt! an t"t!n!t! $t)n!t o/!n! t! ,a## a#! an $tart! )/ t! 5ac"n! aa"n* T! /ar3 ,ra3! wo)# $t"##

not "$!na!? !!n at!r "#"n or o!r 105"n$*

Se$on#a!/ ass*(tion

T! $t)!nt !c"! to r!5o! t! ,ra3! o"# "#t!r* A ''55 $/ann!r wa$ n!!! to #oo$!n t!"#t!r o)$"n* At!r t! r!5oa# t! $t)!nt c#!an! t! "#t!r o)$"n w"t /ara"n to r!5o! a##

t! o# o"# ,!or! r"n$"n "t w"t wat!r an ry"n "t* T! "#t!r o)$"n wa$ r!ay to ,! "t to t!

5ac"n! an o# a n!w "#t!r* T! o# "#t!r a co##a/$! "nwar? 5o$t /ro,a,#y ro5 t! a"r "nt! $y$t!5* R!/#ac"n t! "#t!r an o)$"n " not ". t! /ro,#!5 !"t!r* T! $t)!nt a#$o

!c"! to ra"n t! ,ra3! o"# an r!"## w"t c#!an ,ra3! o"#? ;(0? ro5 +o,"#* To a! t! o"#

ra"n!? "t wa$ a##ow! to #ow o)t ro5 t! ra"n /#) ,!n!at t! ,ra3! o"# tan3 ,)t to !n$)r!

now r!$tr"ct"on to t! #ow t! ,r!at!r ca/ wa$ a#$o o/!n! )/ t! to a##ow !a$y #ow o t! o"#*T! ,r!at!r n!!! a (655 $/ann!r to #oo$!n t! !a* )r"n t"$ /roc!$$ "t wa$ o)n tat

t! ,r!at!r ca/ "#t!r wa$ "rty an r!/#ac! t! ,r!at!r ca/ "#t!r a$ w!##* I t!n too3 t"$

ra"n! o"# away w"t t! 4T or3#"t* T!n t! $t)!nt ,ro)t a )$! ,"n o ,ra3! o"# ,y or3#"tw"t an a"r co5/r!$$or an $tart! "##"n )/ t! tan3 aa"n w"t t! )$! o t! co5/r!$$or w"c

wa$ /#)! "nto 5a"n$ "a 2 !#!ctr"ca# #!a$* T! ,"n ot a oo 60# o ,ra3! o"# "nto t! tan3

,)t "t wa$ not "##! y!t* T! !5/ty o"# ,"n wa$ r!5o! an a n!w ,"n wa$ o/!n! to co5/#!t!


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t! "##"n /roc!$$* In tota# t! tan3 too3 aro)n 80# to r!ac t! 5"#! o t! $"t #a$$ w"c

"$ $a" to ,! o/t"5)5*

Now "t wa$ !c"! to !t t! /r!$$)r! $!n$or an t!$t or /r!$$)r!* It wa$ o)n tat t! /r!$$)r!

"n t! ,ra3! $y$t!5 wa$ corr!ct? /r!$$)r! on t! /)5/"n $"! 1@+Pa M1+Pa* B!#ow "$ a

"ara5 $ow"n t! ,ra3! $y$t!5* A !ta"#! raw"n o t! yra)#"c $y$t!5 can ,! "!w! "na//!n". B*

Figure 2 - Simple park brake system diagram

T"$ $ow ow t! /)5/1 /)5/$ t! yra)#"c ,ra3! o"# ro5 t! ,ra3! o"# tan3 an /)5/$ "t

tro) t! "#t!r 2 to t! a#! ,#oc3 (* T! acc)5)#ator 4 $tor!$ /r!$$)r!* T! $w"tc' $!n$ a$"na# "a CAN7,)$ to !"t!r act"at!6 or !act"at!6 t! /ar3 ,ra3!* T! contro# )n"t ra5! ront

D@D7D act"at!$ t! $o#!no" a#!8 to ra"n t! /r!$$)r!? w!n act"at!? to t! o"# tan3* T!

/ar3 ,ra3! "$ t!n $/r"n act"at! at @* Contact ,r!a3$ at 10 to c#o$! t! c"rc)"t*A//#"! /ar3"n ,ra3!%

Conn 1% 24 FConn 2% 0 FR!#!a$! /ar3"n ,ra3!%

Conn 1% 24 F

Conn 2% 24 F11 an 12 ar! t! CAN7,)$ $"na# an t! act"at"on o t! 5a3!7contact ,ra3! #"t*


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W"t t! aa"#a,"#"ty o t! r!)"r! /r!$$)r!? t! $y$t!5 $o)# )nct"on /ro/!r#y ,)t t! /ar3

,ra3! o!$ not "$!na!* T! /r!$$)r!$ w!r! c!c3! aa"n on#y to not"c! tat t! /r!$$)r! a

ra$t"ca##y ro//!* A w"#! #at!r c!c3"n t! /r!$$)r! aa"n "t a "ncr!a$! ,y a r!a$ona,#!a5o)nt* T"$ #! to t! conc#)$"on tat "t co)# ,! /o$$",#! tat t! /)5/ wa$ #!a3"n "nt!rna##y*

At!r $/!a3"n to t! $)/!r"$or a,o)t ta3"n t! /)5/ to a /)5/ $/!c"a#"$t? to o/!n an a! a

#oo3 at to !n$)r! tat t! /)5/ " not a! any /ro,#!5$* At!r ,!"n "!n t! o a!a? t!$t)!nt c#o$! t! ,a## a#! to t! $y$t!5 an an r!5o! o)t#!t /"/! o"n to t! "#t!r )$"n

two 2255 $/ann!r$ an t!n r!5o! t! "n#!t /"/! )$"n t! $a5! 2255 $/ann!r$* T!r! ar!

two ,o#t$ w"t ny#oc n)t$ on "aona##y o//o$"t! !n$ o t! /)5/ o#"n "t "n /#ac!* )! to t! /o$"t"on"n o t! ,o#t$ "t /ro","t! t! )$! $tanar $/ann!r$? t! $t)!nt a to )$! on!

$tanar 1@55 $/ann!r a$ w!## a$ a 1@55 C7$/ann!r* At!r t! ,o#t$ w!r! #oo$!n!? t! /)5/

$#" o)t o /o$"t"on* It wa$ not"c! tat on! o t! o7r"n $!a#$ a a"#! an tat t!r! wa$ on#y

on! $!a# "n$t!a o two? on! on !ac !n o t! $/ac!r* S"nc! t"$ wa$ t! "r$t t"5! t"$ /)5/ a ,!!n r!5o!? t!r! wa$ no7on! to "! a"c! on a"n two $!a#$ ,!tw!!n t! /)5/ an t!

5otor an t!r! wa$ a co)/#"n $/ac!r w"t o7r"n !!$ on ,ot $"!$* T! /art$ #"$t on#y

"n"cat! tat a $!a# ,! t!r! ,)t " not "n"cat! " "t n!! ,! $!a#! at ,ot !n$* In$t!a o

a"n t! /)5/ c!c3! ,y t! (7r /arty co5/any? "t wa$ "r$t !c"! to !t 2 " /r!$$)r!an " !at o7r"n$ an t!n t!$t t! $y$t!5 aa"n* At!r t! "t5!nt o t! o7r"n$ an t!n

a$$!5,#"n t! /)5/ aa"n? t! $t)!nt $tart! )/ t! 5ac"n! to t!$t t! /ar3 ,ra3!* T! /ar3 ,ra3! #"t "n"cator $w"tc! o "55!"at!#y at!r !act"at"n "t at t! $w"tc* T)$ t!

/ro,#!5 wa$ ca)$! ,y a #!a3 ,!tw!!n t! /)5/ an 5otor ,!ca)$! o t! a"#)r! o t! o7r"n

$!a#$*

Batte!/ not $'a!ging (!oble* an# soltion

W"t t"$ /ro,#!5 $o#! t!r! wa$ anot!r "$$)! tat a co5! )/* T! ,att!r"!$ w!r! a#5o$tcon$tant#y #at? n!!"n to ,! -)5/$tart! or car! at !!ry /o"nt w!r! I want! to t!$t t!

5ac"n!$ /ar3 ,ra3!* "$c)$$"n t"$ w"t t! art"$an? ! r!co55!n! can"n t! a#t!rnator?

,)t "t "$ /o$$",#! tat "t "$ on#y t! o#ta! r!)#ator tat a$ a"#!* So to $o#! t"$ /ro,#!5 I

,!an r!5o"n t! a#t!rnator* I "r$t#y )$! a 1(55 $/ann!r an 855 $/ann!r$ to r!5o! t!w"r!$ tat w!r! conn!ct! to t! a#t!rnator* To$! w!r! t! /ow!r w"r!? "n"t"on an t! ro)n* I

r!5o! t! t!n$"on ro5 t! ,!#t an r!5o! t! ,!#t* T!n I r!5o! t! ".! n)t an ,o#t

,y 1@55 $/ann!r an #a$t#y t! t!n$"on!r ,o#t* T! a#t!rnator now $#" o)t o /o$"t"on* I too3 t!a#t!rnator to (7r /arty a)to7!#!ctr"c"an$ to a! a #oo3 at "t* T!y t!$t! "t "55!"at!#y on t!"r

t!$t ,!nc* T!y $ow! tat t! a#t!rnator "$ not a)#ty ,)t t! o#ta! r!)#ator* T!y t!n

r!/#ac! t! o#ta! r!)#ator an I w!nt ,ac3 to t! wor3$o/ to r!/#ac! t! a#t!rnator* At!rr!/#ac"n t! a#t!rnator? w! $tart! )/ t! 5ac"n! an c!c3! t! ,att!ry o#ta!* T! o#ta!

wa$ c!c3! ,y 5)#t"75!t!r? t! o#ta! $ow! 26*'F w"c "$ o/t"5a# or 2 12F ,att!r"!$* T!

/ro,#!5 wa$ $o#!*

" Con$lsion

T! /ar3 ,ra3! a"#! )! to a #!a3a! o t! /)5/* T! a)#t "n"n " con$)5! a r!at !a# o

t"5! ,)t wa$ w!## wort "t an )nn!c!$$ary "nanc!$ w!r! not "!n o)t to r!/#ac! /art$ ,!ca)$!

o an a$$)5/t"on* It "$ a#way$ ,!tt!r to ,! $)r! o t! root ca)$! ,!or! att!5/t"n a $o#)t"on*C!c3"n a## t! a#! ,#oc3 "tt"n$ #! to no !a$",#! r!$)#t$* At!r r)#"n o)t t! a#! ,#oc3 a$


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t! ca)$! o t! /ro,#!5 a ,#oc3a! ,!ca5! t! n!.t tar!t /o"nt* W"t on#y ( /"/!$ ,!or! t!

a#! ,#oc3 "t ,!ca5! !a$"!r to "n t! /ro,#!5* Pr!$$)r! t!$t$ at!r t! "#t!r $ow! a $#"t

!cr!a$! "n /r!$$)r!* T"$ /r!$$)r! ro/ wa$ a$$)5! to ,! ,!ca)$! o t! "#t!r w"c wa$ t!ncan!* At!r t"$ a /r!$$)r! ro/ wa$ $t"## o)n an t! $)ct"on $"! /"/! wa$ t!n tar!r!*

To c!c3 t! $)ct"on /"/! t! /)5/ n!!! to ,! r!5o!* In t! /roc!$$ o r!5o"n t! /)5/

t! /ro,#!5 wa$ o)n* T! /)5/ $!a#$ a on!* N!w $!a#$ w!r! or!r! an t! /ro,#!5 wa$$o#!* R!/#ac"n t! $!a# $o#!$ t! /ro,#!5 ,)t t! root ca)$! "$ tat t!r! wa$ on#y on! $!a#

an " t!r! a ,!!n two t! /ro,#!5 5ay n!!r a! aro$!*

T! /ro-!ct !$cr",!$ ow to !!#o/ a /#an ,!or! -)5/"n "nto t! a)#t "n"n /roc!$$* T"$ "$

to /r!!nt )nn!c!$$ary t"5! wa$t! ,y try"n to o tro) co5/on!nt$ w"c ar! not "r!ct#y

r!#at! to t! /ro,#!5* It a#$o !$cr",!$ tat !!n w!n t! /ro,#!5 "$ $o#!? "t $o)# ,! ta3!n

"nto con$"!rat"on tat $o5!t"n 5a! t! co5/on!nt a"# an tat $o5!t"n $o)# ,!can! to /r!!nt anot!r $)c a"#)r!* T"$ can ,! )$! a$ a )"!#"n! to ot!r a)#t "n"n

/roc!$$!$ a$ w!##? "t "$ not r!$tr"ct! to yra)#"c ,ra3!$*

T! $t)!nt #!arnt tat "t "$ ,!tt!r to $tart o w"t a oo /#an tan to -)5/ "nto $o5!t"n)n/r!/ar!* W!n /r!/ar"n or a -o,? "t can ,! 5or! !a$"#y $!!n wat $o)# ,! on! an wat

"$ "5/ortant* A#$o? t! $t)!nt #!arnt ow to !!ct"!#y 5a3! )$! o a /r!$$)r! a)! to t!$t /r!$$)r!$ on a c#o$! $y$t!5 an to 3now ow to c!c3 or a"r "n a yra)#"c $y$t!5* +o$t o a##

"t wa$ "5/ortant "n "n"n o)t ow to !t!r5"n! ow t! /)5/ an 5otor corr!#at! to !n$)r! t!

corr!ct o/!rat"on*

- Re$o**en#ations

W!n o"n a)#t "n"n on a yra)#"c $y$t!5 "t "$ "5/ortant to !t!r5"n! wat /r!$$)r!$ ar!

n!!! an w!r! "n t! $y$t!5 t!y act* W!n yo) a! o)n o)t w!r! t! /r!$$)r!$ $o)#

,!? 5a3! )$! o a /r!$$)r! $!n$or an t!$t or to$! /r!$$)r!$* T"$ w"## r)#! o)t c!rta"n a$/!ct$

!!n ,!or! a)#t "n"n a$ ,!)n* T"$ w"## r!)c! t! t"5! $/!nt on t! -o, a$ w!## a$ t!5ac"n! ownt"5!* It "$ a#way$ oo /ract"c! to 3!!/ t! wor3 ar!a c#!an to !n$)r! #!a3$ can

!a$"#y ,! $/ott! an !a#t w"t* W!n /!ror5"n any a)#t "n"n an t!r! "$ )nc!rta"nty?

r!!r to t! 5an)a# or c#ar""cat"on an "$c)$$ t! "$$)! w"t a co##!a)! to a"n a ,!tt!r)n!r$tan"n*

C!c3 /)5/ $!a#$ at c!rta"n $!r"c! "nt!ra#$ to /r!!nt $)c ,r!a3own$* A#$o? 5a3! $)r! tatt! !n"n! ,ay "$ a#way$ c#!an $o tat "n$/!ct"on$ an ,r!a3own 5a"nt!nanc! can ,! on! 5or!

!a$"#y*


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0 Refe!en$es

Co)r$!$+at!5at"c$ 1 +at!5at"c$ 2

raw"n$ 1 CA+an)act)r"n 1 +an)act)r"n 2

+a"nt!nanc! +an)act)r"n (+ana!5!nt $3"##$ +!can"ca# !$"n 2

T!r5oyna5"c$ 2 Str!nt o 5at!r"a#$ 2

Str!nt o 5at!r"a#$ ( A//#"! $tr!nt o 5at!r"a#$ (Co55)n"cat"on 1 Co55)n"cat"on 2

Co5/)t!r $3"##$ 1 E#!ctrot!cno#oy 1

E#!ctrot!cno#oy 2 #)" 5!can"c$ 2#)" 5!can"c$ ( ;yra)#"c 5ac"n!$

Pro)ct"on !n"n!!r"n +!can"c$ o 5ac"n!$ 2

+an)a#$

9a#5ar Wor3$o/ +an)a# R40074'0? 9a#5ar In)$tr"!$ AB

Sort P

Ba$"c E#!ctr"ca# Sy$t!5$? n3nown

;yra)#"c Fa#! Sy5,o#$? n3nown

Boo3$

+a"nt!nanc! En"n!!r"n ;an,oo3 Dt !? +cGraw7;"##? R* 9!"t +o,#!y? L"n#!y R* ;""n$?arr"n * W"3o


13/15

12

A//!n". A


14/15

13

A//!n". B


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kalmar reachstacker park brake failure analysis

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