DMC HC134, Service And Operation Manual, Page: 29 / 31

TROU B LES HOOTI NG, DIAGNOS IS AN D REM ED I ES
I
TROUBLE
1 . Tool fails
to
retra ct
pro perly.
2. Tool fails to build
up p ressure.
CAUS E OF TRO U B LE
1 . Excess hydrau lic oi l (oil
added with nibs not fu l ly
retracted).
2. Ram piston binding .
3. Spring pin 25 not flush with
swivel
1 4
surfa ce.
4. B roke n sp ring reta i ner
stud 9.
5. B roke n ra m return s pring 29 .
6. Tool head slide 4 a nd
housin g bindin g due to
accu mu lation of inhibitor
or dirt in hea d .
1 . Rel ease rod ha nd le p i n 27
m isadjusted .
2. 0- ring sticking .
3. Relief va Ive rod 48
h ol ding bal
I
va
Ive
open.
2 B O F 2S
REPAI R INSTR UCTIONS
I
1 . Fol low instructions of
ADDITION OF HYDRAULIC 01 L.
2. Fol low recomme n ded proced ures
in REMOVAL OF RAM LIP SEAL
steps 1 th rough 5.
3. Fol low recomme n ded proced ures
in TOOL H EAD DISASSEM BLY
a nd TOOL H EAD ASSEMBLY.
4. Fol low recomm e n ded proced ures
in
REMOVAL OF RAM UP SEAL
steps 1 th rough 5, a n d REMOVAL
OF RAM R ETU RN S PRI NG
Remove a nd repl ace the spring
reta i ner stud 9 .
5 . Fol low recomm e n ded proced ures
in REMOVAL OF RAM LIP SEAL
sleps 1 th rough 5, a n d
a nd R EMOVAL O F RAM RETURN
S P R I NG. Remove an d replace
the ra m return spri ng 29 .
6. Fol low recomm e n ded proced ures
in CLEANI NG AND LU BRICATING
TOOL HEAD.
1 . Fol low reco m mended proced ures
in ADJUSTM ENT OF R ELEASE
ROD P IN .
2 . Rotate man ua l advance handle
to ful ly extend indenters. Retract
indenters ful ly an d pu mp u nit.
3. Fol low recom mended proced u res
in REMOVAL OF RELIEF RO D
SEALS a nd I NS PECTION O F RELI EF
VALVE BALL.