2. -2
This manual contains maintenance and repair procedures for the
2005 NISSAN FRONTIER.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in specifi-
cations and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of
the technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician
and the tools and parts available. Accordingly, anyone using service
procedures, tools or parts which are not specifically recommended
by NISSAN must first be completely satisfied that neither personal
safety nor the vehicle’s safety will be jeopardized by the service
method selected.
3. QUICK REFERENCE CHART; FRONTIER 2005
QUICK REFERENCE CHART; FRONTIER PFP:00000
Engine Tune-Up Data ELS001KR
QR Engine Specifications
VQ Engine Specifications
Cylinder arrangement In-line 4
Displacement 2,488 cm3
(151.82 in3
)
Bore and stroke 89.0 x 100.0 mm (3.504 x 3.937 in)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Compression ratio 9.5:1
Compression pressure
Standard 1,304 kPa (13.3 kg/cm2
, 189 psi) / 250
rpm
Minimum 1,108 kPa (11.3 kg/cm2 , 161 psi) / 250
rpm
Differential limit between cylinders 100 kPa (1.0 kg/cm2
, 14 psi) / 250 rpm
Valve timing
Unit: degree
a b c d e f
236° 224° -4° 60° 32° 37°
Cylinder arrangement V-6
Displacement 3,954 cm3
(241.30 in3
)
Bore and stroke 95.5 × 92.0 mm (3.76 × 3.622 in)
Valve arrangement DOHC
Firing order 1-2-3-4-5-6
Number of piston rings
Compression 2
Oil 1
Number of main bearings 4
Compression ratio 9.7:1
Compression pressure
Standard 1,275 kPa (13.0 kg/cm2
, 185 psi) / 300
rpm
Minimum 981 kPa (10.0 kg/cm2 , 142 psi) / 300 rpm
Differential limit between cylinders 98 kPa (1.0 kg/cm2 , 14 psi) / 300 rpm
PBIC0187E
4. 2005
QUICK REFERENCE CHART; FRONTIER
QR and VQ Engine Drive Belt Deflection and Tension
QR Engine Spark Plugs (Double Platinum Tipped)
VQ Engine Spark Plugs (Double Platinum Tipped)
Wheel Alignment (Unladen*1 )*6 ELS001KS
Cylinder number
Valve timing
(Intake valve timing control - “OFF”)
Unit: degree
a b c d e f
244° 240° −4° 64° 6° 58°
Tension of drive belt Auto adjustment by auto-tensioner
Make NGK
Standard type PLZKAR6A-11
Hot type PLZKAR5A-11
Cold type PLZKAR7A-11
Gap (nominal) 1.1 mm (0.043 in)
Make NGK
Standard type PLFR5A-11
Hot type PLFR4A-11
Cold type PLFR6A-11
Gap (nominal) 1.1 mm (0.043 in)
SEM713A
PBIC0187E
Drive type 2WD 4WD
Camber
Degree minute (decimal degree)
Minimum -0° 30′ (-0.50°) -0° 15′ (-0.25°)
Nominal 0° 15′ (0.25°) 0° 30′ (0.50°)
Maximum 1° 00′ (1.00°) 1° 15′ (1.25°)
Cross camber 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
5. QUICK REFERENCE CHART; FRONTIER
2005
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Target value 35° 26′ (35.43°)
*3: Target value 31° 22′ (31.37°)
*4: Target value 35° 36′ (35.60°)
*5: Target value 31° 44′ (31.73°)
*6: Some vehicles may be equipped with straight (non-adjustable) lower link bolts and washers. In order to adjust camber and caster on
these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers.
Brake ELS001KU
Unit: mm (in)
Caster
Degree minute (decimal degree)
Minimum 2° 15′ (2.25°) 2° 00′ (2.00°)
Nominal 3° 0′ (3.00°) 2° 45′ (2.75°)
Maximum 3° 45′ (3.75°) 3° 30′ (3.50°)
Cross caster 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Kingpin inclination
Degree minute (decimal degree)
Nominal 13° 0′ (13.00°) 12° 45′ (12.75°)
Total toe-in
Distance (A − B)
2.1 mm (0.08 in) 2.1 mm (0.08 in)
3.1 mm (0.12 in) 3.1 mm (0.12 in)
4.1 mm (0.16 in) 4.1 mm (0.16 in)
Angle (left wheel or right wheel)
Degree minute (decimal degree)
0° 5′ (0.08°) 0° 5′ (0.08°)
0° 7′ (0.12°) 0° 7′ (0.12°)
0° 9′ (0.15°) 0° 9′ (0.15°)
Wheel turning angle (full turn)
Inside
Degree minute (decimal degree)
33° 26′ – 35° 26′ *2
(33.43° – 35.43°)
33° 36′ – 35° 36′ *4
(33.60° – 35.60°)
Outside
Degree minute (decimal degree)
29° 22′ – 31° 22′ *3
(29.37° – 31.37°)
29° 44′ – 31° 44′ *5
(29.73° – 31.73°)
Drive type 2WD 4WD
SFA234AC
Engine QR25DE VQ40DE
Front brake Brake model CLZ33VA
Rotor outer diameter × thickness 296 × 28 (11.65 × 1.10)
Pad Length × width × thickness 140 × 49 × 10 (5.51 × 1.93 × 0.39)
Cylinder bore diameter (Dual pis-
ton)
46.4 (1.83)
Rear brake Brake model CLZ11VA
Rotor outer diameter × thickness 286 × 18 (11.26 × 0.71)
Pad Length × width × thickness 87.6 × 35 × 11 (3.45 × 1.38 × 0.43)
Cylinder bore diameter (Single pis-
ton)
38.1 (1.50)
Control valve Valve model EBD
6. 2005
QUICK REFERENCE CHART; FRONTIER
Disc Brake - Repair Limits ELS001KV
FRONT DISC BRAKE
Unit: mm (in)
REAR DISC BRAKE
Unit: mm (in)
Brake Pedal ELS001KW
Unit: mm (in)
Brake booster Booster model C215T
Diaphragm diameter 215 (8.46)
Recommended brake fluid
Genuine NISSAN Super Heavy Duty Brake Fluid or equivalent DOT 3 (US
FMVSS No. 116)
Brake model CLZ33VA
Brake pad
Standard thickness (new) 10 (0.394)
Repair limit thickness 2 (0.079)
Disc rotor
Standard thickness (new) 28 (1.10)
Repair limit thickness 26 (1.024)
Maximum uneven wear (measured at 8 positions) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.05 (0.0020)
Brake model CLZ11VA
Brake pad
Standard thickness (new) 11 (0.433)
Repair limit thickness 2 (0.079)
Disc rotor
Standard thickness (new) 18 (0.709)
Repair limit thickness 16 (0.630)
Maximum uneven wear (measured at 8 positions) 0.015 (0.0006)
Runout limit (with it attached to the vehicle) 0.05 (0.0020)
Free height "H"
A/T 182.1 - 192.1 (7.17 - 7.56)
M/T 174.7 - 184.7 (6.88 - 7.27)
WFIA0160E
7. QUICK REFERENCE CHART; FRONTIER
2005
Refill Capacities ELS001KX
QR Engine
VQ Engine
Depressed pedal height ("D" [under a force of 490 N (50 kg, 110 lb) with engine
running]
103 - 123 (4.06 - 4.84)
Clearance between pedal stopper and threaded end of stop lamp switch and
ASCD switch "C1 " or “C2 ”
0.74 - 1.96 (0.029 - 0.077)
Pedal play "A" 3 - 11 (0.12 - 0.43)
Description
Capacity (Approximate)
Metric US measure Imp measure
Fuel 80 21 1/8 gal 17 5/8 gal
Engine oil
Drain and refill
With oil filter change 4.9 5 1/8 qt 4 3/8 qt
Without oil filter change 4.6 4 7/8 qt 4 qt
Dry engine (engine overhaul) 5.0 5 1/4 qt 4 3/8 qt
Cooling system With reservoir at MAX level 9.4 2 1/2 gal 2 1/8 gal
Automatic transmission fluid (ATF) 10.3 10 7/8 qt 9 1/8 qt
Manual transmission fluid (MTF)
(5 M/T model)
2.89 3 qt 2 1/2 qt
Rear final drive oil C200 1.6 3 3/8 pt 2 7/8 pt
Power steering fluid (PSF) 1.0 2 1/8 pt 1 3/4 pt
Windshield washer fluid 4.5 1 1/4 gal 1 gal
Air conditioning system refrigerant 0.70 ± 0.05 kg 1.54 ± 0.11 lb 1.54 ± 0.11 lb
Air conditioning system lubricant 180 m 6.1 fl oz 6.3 fl oz
Description
Capacity (Approximate)
Metric US measure Imp measure
Fuel 80 21 1/8 gal 17 5/8 gal
Engine oil
Drain and refill
With oil filter change 5.1 5 3/8 qt 4 1/2 qt
Without oil filter change 4.8 5 1/8 qt 4 1/4 qt
Dry engine (engine overhaul) 6.3 6 5/8 qt 5 1/2 qt
Cooling system With reservoir at MAX level 10.2 2 3/4 gal 2 1/4 gal
Automatic transmission fluid (ATF) 10.3 10 7/8 qt 9 1/8 qt
Manual transmission fluid (MTF)
(6 M/T model)
2WD 3.98 4 1/4 qt 3 1/2 qt
4WD 4.18 4 3/8 qt 3 5/8 qt
Rear final drive oil
C200 1.6 3 3/8 pt 2 7/8 pt
M226 2.01 4 1/4 pt 3 1/2 pt
Transfer fluid TX15B 2.0 2 1/8 qt 1 3/4 qt
Front final drive oil 0.85 1 3/4 pt 1 1/2 pt
Power steering fluid (PSF) 1.0 2 1/8 pt 1 3/4 pt
Windshield washer fluid 4.5 1 1/4 gal 1 gal
A/C system refrigerant 0.70 ± 0.05 kg 1.54 ± 0.11 lb 1.54 ± 0.11 lb
A/C system lubricant 180 m 6.1 fl oz 6.3 fl oz
8. GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION GI
Revision: November 2005 2005 Frontier
PRECAUTIONS .....................................................
..... 3
Description ..........................................................
..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................
..... 3
Precautions for NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS) (If
Equipped) ............................................................
..... 3
General Precautions ...........................................
..... 4
Precautions for Three Way Catalyst ....................
..... 5
Precautions for Fuel ............................................
..... 5
QR25DE MODELS ...........................................
..... 5
VQ40DE MODELS ...........................................
..... 5
Precautions for Multiport Fuel Injection System or
Engine Control System .......................................
..... 6
Precautions for Hoses .........................................
..... 6
HOSE REMOVAL AND INSTALLATION ..........
..... 6
HOSE CLAMPING ...........................................
..... 7
Precautions for Engine Oils .................................
..... 7
HEALTH PROTECTION PRECAUTIONS ........
..... 7
ENVIRONMENTAL PROTECTION PRECAU-
TIONS ..............................................................
..... 7
Precautions for Air Conditioning ..........................
..... 8
HOW TO USE THIS MANUAL ..............................
..... 9
Description ..........................................................
..... 9
Terms ..................................................................
..... 9
Units ....................................................................
..... 9
Contents ..............................................................
..... 9
Relation between Illustrations and Descriptions .
... 10
Components ........................................................
... 10
SYMBOLS ........................................................
....11
How to Follow Trouble Diagnoses .......................
....11
DESCRIPTION .................................................
... 12
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ............................................
... 13
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION ....................................
... 13
KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................
... 15
How to Read Wiring Diagrams ............................
... 17
CONNECTOR SYMBOLS ................................
... 17
SAMPLE/WIRING DIAGRAM - EXAMPL - .......
... 18
DESCRIPTION .................................................
... 19
Abbreviations .......................................................
... 24
SERVICE INFORMATION FOR ELECTRICALINCI-
DENT ......................................................................
... 26
How to Check Terminal ........................................
... 26
CONNECTOR AND TERMINAL PIN KIT .........
... 26
HOW TO PROBE CONNECTORS ...................
... 26
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................
... 29
WORK FLOW ...................................................
... 29
INCIDENT SIMULATION TESTS .....................
... 29
CIRCUIT INSPECTION ....................................
... 32
Control Units and Electrical Parts ........................
... 37
PRECAUTIONS ...............................................
... 37
SMJ INSTALLATION ........................................
... 38
CONSULT-II CHECKING SYSTEM .......................
... 39
Description ...........................................................
... 39
Function and System Application ........................
... 39
Nickel Metal Hydride Battery Replacement .........
... 39
Checking Equipment ...........................................
... 39
CONSULT-II Start Procedure ...............................
... 40
CONSULT-II Data Link Connector (DLC) Circuit .
... 40
INSPECTION PROCEDURE ...........................
... 40
LIFTING POINT ......................................................
... 42
Pantograph Jack ..................................................
... 42
Garage Jack and Safety Stand ............................
... 42
2-Pole Lift ............................................................
... 43
TOW TRUCK TOWING ..........................................
... 44
Tow Truck Towing ................................................
... 44
2WD MODEL ....................................................
... 44
4WD MODEL ....................................................
... 45
Vehicle Recovery (Freeing a stuck vehicle) .........
... 45
TIGHTENING TORQUE OF STANDARD BOLTS .
... 46
Tightening Torque Table ......................................
... 46
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS ............................................................
... 47
Recommended Chemical Products and Sealants... 47
IDENTIFICATION INFORMATION .........................
... 48
9. Thank you very much
for your reading. Please
Click Here Then Get
More Information.
NOTE:
If there is no response to
click on the link above,
please download the PDF
document first and then
click on it.
10. PRECAUTIONS
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PRECAUTIONS PFP:00001
Description EAS001G7
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section.
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER” EAS001G8
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
● To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
● Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
● Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for NVIS/IVIS (NISSAN/INFINITI VEHICLE IMMOBILIZER SYSTEM -
NATS) (If Equipped) EAS001YS
NVIS/IVIS (NATS) will immobilize the engine if someone tries to start it without the registered key of NVIS/IVIS
(NATS).
Both of the originally supplied ignition key IDs have been NVIS/IVIS (NATS) registered.
The security indicator is located on the instrument panel. The indicator blinks when the immobilizer system is
functioning.
Therefore, NVIS/IVIS (NATS) warns outsiders that the vehicle is equipped with the anti-theft system.
● When NVIS/IVIS (NATS) detects trouble, the security indicator lamp lights up while ignition switch is in
"ON" position.
This lighting up indicates that the anti-theft is not functioning, so prompt service is required.
● When servicing NVIS/IVIS (NATS) (trouble diagnoses, system initialization and additional registration of
other NVIS/IVIS (NATS) ignition key IDs), CONSULT-II hardware and CONSULT-II NVIS/IVIS (NATS)
software is necessary.
Regarding the procedures of NVIS/IVIS (NATS) initialization and NVIS/IVIS (NATS) ignition key ID regis-
tration, refer to CONSULT-II operation manual, NVIS/IVIS (NATS).
Therefore, CONSULT-II NVIS/IVIS (NATS) software (program card and operation manual) must be kept
strictly confidential to maintain the integrity of the anti-theft function.
● When servicing NVIS/IVIS (NATS) (trouble diagnoses, system initialization and additional registration of
other NVIS/IVIS (NATS) ignition key IDs), it may be necessary to re-register original key identification.
Therefore, be sure to receive all keys from vehicle owner. A maximum of four or five key IDs can be regis-
tered into NVIS/IVIS (NATS).
● When failing to start the engine first time using the key of NVIS/IVIS (NATS), start as follows.
1. Leave the ignition key in "ON" position for approximately 5 seconds.
2. Turn ignition key to "OFF" or "LOCK" position and wait approximately 5 seconds.
3. Repeat step 1 and 2 again.
4. Restart the engine while keeping the key separate from any others on key-chain.
11. GI-4
PRECAUTIONS
Revision: November 2005 2005 Frontier
General Precautions EAS001G9
● Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any inflammable
materials. Special care should be taken when handling any
inflammable or poisonous materials, such as gasoline, refriger-
ant gas, etc. When working in a pit or other enclosed area, be
sure to properly ventilate the area before working with hazard-
ous materials.
Do not smoke while working on the vehicle.
● Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After
jacking up the vehicle, support the vehicle weight with safety
stands at the points designated for proper lifting before working
on the vehicle.
These operations should be done on a level surface.
● When removing a heavy component such as the engine or tran-
saxle/transmission, be careful not to lose your balance and drop
them. Also, do not allow them to strike adjacent parts, especially
the brake tubes and master cylinder.
● Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.
● If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.
● To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.
● Dispose of drained oil or the solvent used for cleaning parts in
an appropriate manner.
● Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel
spray and possibly a fire.
● Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.
● Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.
● Replace inner and outer races of tapered roller bearings and needle bearings as a set.
● Arrange the disassembled parts in accordance with their assembled locations and sequence.
● Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
● After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.
● Use only the fluids and lubricants specified in this manual.
SGI285
SGI231
SEF289H
SGI233
12. PRECAUTIONS
GI-5
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● Use approved bonding agent, sealants or their equivalents when required.
● Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice repairs.
● When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.
● Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for Three Way Catalyst EAS001GA
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
● Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
● When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
● Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precautions for Fuel EAS001MP
QR25DE MODELS
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91). E-85 fuel (85% fuel ethanol, 15% unleaded gasoline) may only be used in vehicles specif-
ically designed for E-85 fuel (i.e. Flexible Fuel Vehicles - FFV models).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fuel other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
VQ40DE MODELS
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91). E-85 fuel (85% fuel ethanol, 15% unleaded gasoline) may only be used in vehicles specif-
ically designed for E-85 fuel (i.e. Flexible Fuel Vehicles - FFV models).
PBIC0190E
SGI234
13. GI-6
PRECAUTIONS
Revision: November 2005 2005 Frontier
For improved vehicle performance, NISSAN/INFINITI recommend the use of unleaded premium gasoline with
an octane rating of at least 91 AKI number (Research octane number 96).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fuel other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
Precautions for Multiport Fuel Injection System or Engine Control System EAS001GC
● Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
● Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.
● Be careful not to jar components such as ECM and mass air
flow sensor.
Precautions for Hoses EAS001GD
HOSE REMOVAL AND INSTALLATION
● To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.
● To reinstall the rubber hose securely, make sure of hose inser-
tion length and clamp orientation. (If tube is equipped with hose
stopper, insert rubber hose into tube until it butts up against
hose stopper.)
SGI787
SMA019D
SMA020D