Color NISSAN ALMERA N15 1995 Workshop Manual

PRECAUTIONSANDPREPARATION
Special Service Tools(Cont'd)
CR-14 compressor

Tool number
Tool name
KV99106700
Clutch discwrench
KV991 06800
Pulley installer Description

NT351
NT352
Removing
shaftnutand clutch disc
Installing pulley

HFC-134a (R-134a)ServiceToolsandEquipment

Never mixHFC-134a refrigerant and/oritsspecified lubricantwithCFC-12 (R-12)refrigerant and/orits
lubrication oil.
Separate andnon-interchangeable serviceequipment mustbeused foreach typeofrefrigerant/
lubricant.
Refrigerant containerfittings,servicehosefittings andservice equipment fittings(equipment which
handles refrigerant and/orlubricant) aredifferent between CFC-12(R-12)andHFC-134a (R-134a).This
is to avoid mixed useofthe refrigerants/lubricant.
Adapters thatconvert onesize fitting toanother mustnever beused: refrigerant/lubricant contamina-
tion willoccur andcompressor failurewillresult.

Tool name
Description Note
HFC-134a (R-134a)refrig-

~~
Container
color:Lightblue
erant Containermarking:HFC-134a (R-134a)
Fitting size:Thread size
• large contai ner1/2"-16 ACME

NT196

Nissan A/CSystem Oil Type:Polyalkyline glycoloil(pAG), typeR
Type R

~
Application:
HFC-134a(R-134a)vanerotary
(Part No.:KLHOO-PAGRO)
compressors(Nissanonly)
Lubricity: 40me (1.4 Imp
fI
oz)

NT197

Recovery/Recycling/
~
Function:
Refrigerant RecoveryandRecy-
Recharging equipment

":'s
Q"'~
cling
andRecharging

==

•

~ t:J
~

II

NT195
HA-6

PRECAUTIONSANDPREPARATION
HFC-134a (R-134a)ServiceToolsandEquipment
(Cont'd)

Tool name
Electrical leakdetector
Manifold gaugeset(with
hoses andcouplers)
Service hoses
• High sidehose
• Low side hose
• Utility hose
Service couplers
• High sidecoupler
• Low side coupler
Refrigerant weightscale
Vacuum pump
(Including theisolator
valve) Description

NT19S
NT199
NT201
NT202
NT200
NT203 HA-7
Note
Power supply:
• DC 12V(Cigarette lighter)
Identification:
• The gauge faceindicates R-134a.
Filling size:Thread size
• 1/2"-16 ACME
Hose color:
• Low hose: Bluewithblack stripe
• High hose: Redwith black stripe
• Utility hose:Yellow withblack stripe or
green withblack stripe
Hose filting togauge:
• 1/2"-16 ACME
Hose filling to
service
hose:
• M14 x1.5 fitting isoptional or
permanently attached.
For measuring ofrefrigerant
Fitting size:Thread size
.1/2"-16 ACME
Capacity:
• Air displacement: 4CFM
• Micron rating:20microns
• Oil capacity: 482g(17 oz)
Fitting size:Thread size
.1/2"-16 ACME
•

PRECAUTIONSANDPREPARATION
Precautions forService Equipment
RECOVERY/RECYCLING/RECHARGING EQUIPMENT

Be certain tofollow themanufacturers instructionsformachine
operation andmachine maintenance. Neverintroduce any
refrigerant otherthanthatspecified intothemachine.

ELECTRONIC LEAKDETECTOR

Be certain tofollow themanufactures instructionsfortester
operation andtester maintenance.

With isolator valve
Without isolatorvalve
VACUUM
PUMP

Hose fittings:

1/2".16ACME
Thelubricant contained insidethevacuum pumpisnot compat-
ible with thespecified lubricantforHFC-134a (R-134a)
AIC
sys-
tems. Thevent sideofthe vacuum pumpisexposed toatmo-
spheric pressure. Sothe vacuum pumplubricant maymigrate
out ofthe pump intotheservice hose.Thisispossible whenthe
pump isswitched offafter evacuation (vacuuming) andhose is
connected toit.
To prevent thismigration, useamanual valveplaced nearthe
hose-to-pump connection,asfollows.
• Usually vacuum pumpshaveamanual isolatorvalveaspart
of the pump. Closethisvalve toisolate theservice hose
from thepump.
• For pumps without anisolator, useahose equipped witha
manual shut-off valvenearthepump end.Close thevalve
to isolate thehose fromthepump.
• Ifthe hose hasanautomatic shutoffvalve, disconnect the
hose fromthepump. Aslong asthe hose isconnected, the
valve isopen andlubricating oilmay migrate.
Some one-way valvesopenwhen vacuum isapplied andclose
under ano vacuum condition. Suchvalves mayrestrict the
pump's abilitytopull adeep vacuum andarenotrecom-

RHA270D
mended.

MANIFOLD GAUGESET

Be certain thatthegauge faceindicates R-134aor134a. Besure
the gauge sethas
1/2"-16
ACMEthreaded connections forser-
vice hoses. Confirm theset has been usedonlywith refriger-
ant HFC-134a (R-134a)andspecified lubricants.

~

1f2"-16ACME

SHA533D

Hose fittings to
manifold gaugeorrecovery/recycling
equipment; 1/2"-16ACME

RHA272DSERVICE
HOSES

Be certain thattheservice hosesdisplay themarkings
described (coloredhosewithblack stripe). Allhoses must
include positive shutoffdevices (eithermanual orautomatic)
near theend ofthe hoses opposite themanifold gauge.

HA-8