PDF Service Manual Cat R20 Hydra Trac - 7 MB
This service manual offers detailed instructions for the repair and maintenance of the Cat R20 Hydra Trac.
It covers all the essential systems, providing the technical information needed to perform diagnostics, troubleshooting, and complete overhauls.
This manual is a vital resource for service technicians aiming to maintain the performance and reliability of this specialized equipment.
Ensure all repairs are done to factory specifications.
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--- Page 1 ---
© Bucyrus BI116083
All Rights Reserved
BUCYRUS R
°
Technical Manual
--- Page 3 ---
BI116083
Notes
Introduction ix
--- Page 4 ---
BI116083
Safety
Safe - -Section
Section 1
Overview of Potential Hazards
Overview Hazards 1-2
1-2
Safety Instructions
Safety Instructions 1-3
1-3
Before Operation
Before Operation 1-3
1-3
After Operation
After Operation 1-3
1-3
Maintenance
Maintenance 1-4
1-4
Equipment Transfer
Equipment Transfer 1-4
1-4
Safety
Safety 1-1
1-1
--- Page 5 ---
Track Link BI116083
Repair
1.
1. After track
After track chain
chain is
is separated, remove track
separated, remove track shoe
shoe
from damaged
from damagedlink
link (fig.
(fig. 2-6).
2-6).
Fig. 2-6 Track Shoe Removal
2.
2. To
To replace
replace a damaged link,
a damaged link, gas cut at
gas cut at the
the broken
broken
location
location (arrow,
(arrow, fig.
fig. 2-7).
2-7). Cut
Cut the
the chain
chain completely
completely
through
through atat the
the damaged
damaged area area and
and lay
lay chain
chain on
on
ground.
ground.
Fig.
Fig. 2-7
2-7 Cut
Cut out
out damaged
damaged link
3. Now
Nowcutcutthe
the links,
links,bushings
bushings and
and pins
pins of
of the
the dam-
dam-
aged link as
aged link as shown
shown inin fig.
fig. 2-8.
2-8.Remove
Remove the
the cut
cut up
up BREAKING
BREAKING
parts.
parts. POINT
POINT
Fig.
Fig.2-8
2-8Cut
Cutout
outlinks,
links,bushings
bushings&&pins
pinsas
as shown
shown
Mainframe
Mainframe//Tracks
Tracks 2-7
2-7
--- Page 6 ---
BI116083
Idler and
Idler and Tensioner
Tensioner Assembly
NOTE:
NOTE:
Someunits
Some unitsmay
mayhave
haveRoll
RollPin
Pin(12)
(12) installed
installed
9 from the
from the top.
top.
12
see
seeNOTE
NOTE
12
12
11
11 /
/
[I[I 9
Fig. 2-26 Idler Assembly
1. Idler Unit
Unit -- Complete
Complete 10.
10. Shaft
6. Idler
6. Idler with
with Bushings
Bushings 11. Seal (2)
11.
7.
7. Idler 12. Roll Pin (2)
12.Roll
8.
8. Bushing (2) 13. 0 Ring (2)
13.
9.
9. Sliding Rail (2) 16. Plug
Fig.
Fig.2-27
2-27Tensioner
Tensioner Assembly
Assembly
1.Idler
1. IdlerUnit
Unit- -Complete
Complete 5. Spring
5. Spring Washer
Washer (2)
(2)
2.Idler
2. Idler 6. Grease
6. Grease Fitting
Fitting
3. Tensioner
3. Tensioner -- Complete
Complete 7. Sealing
7. Sealing Ring
Ring
4. Capscrew, M12x35
4. Capscrew, M12x35 (2)
(2)
Mainframe 2-17
2-17
Mainframe/ /Tracks
Tracks
--- Page 7 ---
BI116083
Track
Track Rollers
Rollers
Track Roller
Track Roller -- Test
Test &
& Install
Install
77. Check the
Check the end
end play.
play. Check
Check for
for air
air tightness
tightness byby in-
in-
serting air
serting air pressure
pressure through
through the
the oil
oil fill
fill hole.
hole. Test
Test
pressure should
pressure should be
be not
not more
more than
than 8787 PSI
PSI (6(6 bar).
bar).
Fig. 2-50.
Fig. 2-50.
Fig.
Fig. 2-50
2-50 Track Roller - pressure test.
8.
8. If the air test is satisfactory, with no air leakage
around the seals, fill roller with SAE 90 oil through
the oil
the oil fill
fill hole
hole (fig.
(fig. 2-51).
2-51).
Fig. 2-51 Track Roller - fill with oil.
9.
9. Hold the roller in such a way so the oil groove is
at
at the
the bottom
bottom (remember
(remember thethe oil
oil groove
groove isis aligned
aligned
with
with the
the mounting
mounting surface
surface of
of the
the bracket)
bracket) andand the
the
oil fill hole is at the top. Now inset air pressure
oil fill hole is at the top. Now inset air pressure
into
into the
the roller
roller as
as in
in step
step 77 so
so the
the oil
oil is
is pressed
pressed
into
into the
the seal
seal retaining
retaining spaces
spaces (9).
(9). Fig.
Fig. 2-52.
2-52.
Fig.2-52
Fig. 2-52Track
TrackRoller
Roller--air
airpressure
pressureon
onoil.
oil.
Mainframe 2-27
Mainframe//Tracks
Tracks 2-27
--- Page 8 ---
BI116083
FrONFIGLIOLIRIOLITTORI S.p.A.
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Disegno esploso riduttore - Gearbox exploded view
Man
Man_21201300732
21261300732 sm.doc
m.doc Pag.3 05/2001
--- Page 9 ---
BI116083
MANUTENZIONE
MANUTENZIONE MAINTENANCE
MAINTENANCE
Incaso
In caso di
dinormale
normale funzionamento
funzionamento itit motoriduttore non Under
motoriduttorenon Undernormal
normaloperating
operatingcircumstances,
circumstances,no noroutine
routine
necessita di
necessita dialcuna
alcuna manutenzione
manutenzionead ad eccezione
eccezione deldel maintenance
maintenanceisisrequired,
required,except
exceptroutine
routineoil
oilchecks
checksandand
controlloeecambio
controllo cambioolio.
olio.Sono
Sononecessari
necessari interventi di oil
interventi di oilchanges.
changes.As Asrecommended
recommendedin inthis
thismanual,
manual,unusual
unusual
assistenza solo in seguito
assistenza seguito ad ad anomalie di di operating
operating characteristics,
characteristics, such
such as as noise
noise oror overheat,
overheat,
funzionamento.
funzionamento. should
should indicate
indicate further
further investigation.
investigation.
Eseguire ii controlli
Eseguire controllied
edattivita
attivitasecondo
secondo la tabella For
la tabella For aa proper
proper maintenance
maintenance of of the
the gearbox,
gearbox, the
the following
following
seguente:
seguente: checks
checks and
and operations
operations havehave to
to be
be done.
done.
Controllo
°llo /I Inspection
Contr. F.requenza 1.Frequency
Inspection Frequenza:I.FreOency Azione/Action
Azione/ Action
Serraggio viti;,;
Serfpggio viti DOpole:prime..50:ore
DOpo le:prime :50 oredi. dilaVoto
laVott del riduttore....:.:
del::riduttore Verificare
Verificare serraggio viti
serraggio viti
screws .
Tightening:screws.
Tightening After; the . first:.5.0
Afterthe..first operatinghotir,s
50 operating hours.Of
of thagearbox
tha:gearbbx •Screws
Screws tightening
tightening torque
torque check
check
Livello olio
Livello olio Ogni .10.0.ore
Ogni.100 ore di
dilaybro 'del riduttore . .
layOro:del.riduttore Aggiungere
Aggiungere olio
olio
Oil level
Oil level 'Every 190 Operatingihours
Evety 190 Operatihgihours of
of the
the gearbox
gearbox. Refill
Refill oil
oil
Primo can-ibio
Primo cambio olio
olio A 1:50
A 150 ore:
ore di
di lavoro del riduttore,
lavoro•del..riduttore: Sostituire
Sostituire olio
olio
'I1's' 'oil change
oil change At 150operating hours
At150..Opei'ating• ofthe: gearboX
hours ofthe.! gearbox Oil replacement
Oil replacement
Cambi olio
Cambi oliosuccessivi
successivi Ogni 1000
Ogni 1000 ore
ore di lavoro
lavoro del
del riduttore
riduttore oo 11 volta
volta l'anno
l'anno Sostituire
Sostituire olio
olio
Next oil
Next oil change
change Every 1000 operating hours or at least one a year Oil replacement
replacement
elf In caso di manutenzioni importanti or at
nfo
Yn n In case of important and complex
e complesse, fare riferimento ai Disegni Esplosi e maintenance operations, make reference to The
Liste Ricambi
Liste Ricambi fornibili
fornibili su su richiesta
richiesta ed ed alle
alle Spare Part Lists Exploded View which can be
prescrizioni contenute
prescrizioni contenute nel nel presente
presents manuale
manuale supplied under request or the suggestions of this
tecnico.
tecnico. manual.
Se sono
sono necessarie
necessarieistruzioni supplementari o
istruzioni supplementari o se
se Do not hesitate to contatct the gearbox distributor or
dovessero
dovessero nascere problemi particolari, non esitate a
nascere problemi particolari, non esitate manufacturer if further instructions are necessary or in
contattare itit distributore o direttamente
contattare direttamente it
it nostro servizio case of particular problems.
tecnico.
tecnico.
Man_.,21261300732_srn.doc Paq
Pag.13 0512001
05/200.1
Mart...21-261300732_srn . dot:
--- Page 10 ---
EiNiFf".!Cti MOTOR/
BI116083
RIMONTAGGIO
RIMONTAGGIO REASSEMBLY
REASSEMBLY
9.1NOTE
9.1 NOTEIMPORTANT!
IMPORTANT!PRIMA
PRIMADEL
DEL 9.1 IMPORTANT
9.1.: IMPORTANTNOTES NOTESBEFOREBEFORE
RIMONTAGGIO
RIMONTAGGIO. . REASSEMBLY
REASSEMBLY
When
When proceeding
proceeding with
with the
the gearbox
gearbox reassembly,
reassembly, itit is
is
Quando si
Quando si procede
procede alal rimontaggio
rimontaggio deldel riduttore
riduttore necessary
necessary toto follow
follow the
the rules
rules listed
listed below:
below:
occorre attenersi
occorre attenersi ad
ad alcune
alcune regole
regole fondamentali:
fondamentali:
1. In
1. In case
case ofof damaged
damaged gears,
gears, for
for example