O E M
O E M
O E M
O E M
O E M
S E R V I C E
S E R V I C E
S E R V I C E
S E R V I C E
S E R V I C E
R E S E R V O I R
R E S E R V O I R
R E S E R V O I R
R E S E R V O I R
R E S E R V O I R
PART NO.
PART NO.
PART NO.
PART NO.
PART NO.
PART NO.
PART NO.
PART NO.
PART NO.
PART NO.
N4304AB KN28601
N4304AC KN28600
N4304AD KN28603
N4304AE KN28602
B
S u p p l y
S u p p l y
S u p p l y
S u p p l y
S u p p l y
P o r t
P o r t
P o r t
P o r t
P o r t
(3/8" FP)
(3/8" FP)
(3/8" FP)
(3/8" FP)
(3/8" FP)
1.00
1.00
1.00
1.00
1.00
.50
.50
.50
.50
.50
2.39
2.39
2.39
2.39
2.39
D
Spring Brake
Spring Brake
Spring Brake
Spring Brake
Spring Brake
P o r t
P o r t
P o r t
P o r t
P o r t
(3/8" FP)
(3/8" FP)
(3/8" FP)
(3/8" FP)
(3/8" FP)
W W W W WARNING
ARNING
ARNING
ARNING
ARNING
s
!
When working on air system components the following precautions
should be observed.
1. Stop engine when working under a vehicle. Always block the
vehicle wheels against a fore or aft roll. Bleeding off system air
pressure may cause the vehicle to roll. Keep hands away from brake
chamber push rods and slack adjusters; they may apply as system
pressure drops.
2. Never connect or disconnect a hose or line containing air pres-
sure. It may whip as air escapes. Never remove a component or a
pipe plug unless you are certain all system air pressure has been
exhausted.
3. Never exceed recommended working air pressure and always
wear safety glasses when working with air pressure. Never look
directly into component ports or direct a pressurized air flow at
anyone.
4. Never attempt to disassemble a component until you have read
and understood all recommended procedures. Some components
contain powerful springs and injury can result if not properly disas-
sembled. Use only proper tools and observe all precautions pertain-
ing to the use of those tools.
Rev. 2/02 ART 25M L31107
INSTALLATION INSTRUCTIONS
FF2 FULL FUNCTION VALVE
C R A C K
C R A C K
C R A C K
ANTI-
ANTI-
ANTI-
C R A C K
C R A C K
ANTI-
ANTI-
P O R T
P O R T
P O R T
P O R T
P O R T
P R E S S U R E
P R E S S U R E
P R E S S U R E
P R E S S U R E
P R E S S U R E
C O M P O U N D I N G
C O M P O U N D I N G
C O M P O U N D I N G
C O M P O U N D I N G
C O M P O U N D I N G
1/2
3 PSI
Y E S
3/4
3 PSI
Y E S
1/2
5 PSI
Y E S
3/4
5 PSI
Y E S
A
C o n t r o l
C o n t r o l
C o n t r o l
C o n t r o l
C o n t r o l
P o r t
P o r t
P o r t
P o r t
P o r t
(1/4" FP)
(1/4" FP)
(1/4" FP)
(1/4" FP)
(1/4" FP)
Four Down
Four Down
Four Down
Four Down
Four Down
D e l i v e r y
D e l i v e r y
D e l i v e r y
D e l i v e r y
D e l i v e r y
P o r t s
P o r t s
P o r t s
P o r t s
P o r t s
(3/8" FP)
(3/8" FP)
(3/8" FP)
(3/8" FP)
(3/8" FP)
Spring Brake
Spring Brake
Spring Brake
Spring Brake
Spring Brake
(3/8" FP)
(3/8" FP)
(3/8" FP)
(3/8" FP)
(3/8" FP)
C
R e s e r v o i r
R e s e r v o i r
R e s e r v o i r
R e s e r v o i r
R e s e r v o i r
F i t t i n g
F i t t i n g
F i t t i n g
F i t t i n g
F i t t i n g
u
(1/2" or 3/4" MP)
(1/2" or 3/4" MP)
(1/2" or 3/4" MP)
(1/2" or 3/4" MP)
(1/2" or 3/4" MP)
North American Sales Division
North American Sales Division
North American Sales Division
North American Sales Division
North American Sales Division
Haldex Brake Products Corp.
Haldex Brake Products Corp.
Haldex Brake Products Corp.
Haldex Brake Products Corp.
Haldex Brake Products Corp.
10707 N.W. Airworld Drive
Kansas City, MO 64153-1215
Phone: (816) 891-2470 / Fax: (816) 801-4198
PREP
PREP
PREPARING THE TRAILER FOR FF2
ARING THE TRAILER FOR FF2
ARING THE TRAILER FOR FF2
ARING THE TRAILER FOR FF2
PREP
PREP
ARING THE TRAILER FOR FF2
FULL FUNCTION VAL AL AL AL ALVE INST
FULL FUNCTION V
FULL FUNCTION V
FULL FUNCTION V
FULL FUNCTION V
1. Block trailer wheels to prevent fore or aft roll.
2. Disconnect tractor/trailer hose couplings.
3. Drain all trailer reservoirs.
4. Locate valve to be replaced.
5. Carefully tag all air lines which are connected to the valve
being replaced:
a . Trailer Service (Control)
b. Trailer Supply (Emergency)
c. Delivery to Service Brake Chambers
d. Delivery to Spring Brake Chambers
INST
INST
ALLING THE FF2 FULL
ALLING THE FF2 FULL
INST
INST
INSTALLING THE FF2 FULL
ALLING THE FF2 FULL
ALLING THE FF2 FULL
FUNCTION V
FUNCTION VAL AL AL AL ALVE VE VE VE VE
FUNCTION V
FUNCTION V
FUNCTION V
E
1. Match port size on reservoir with proper FF2 Part Number (see
chart above).
2. Connect FF2 to reservoir at location
is 240 lb. in. into reservoir. (DO NOT OVER-TORQUE!)
Nipple/Fitting permanently installed
Nipple/Fitting permanently installed
Nipple/Fitting permanently installed
Nipple/Fitting permanently installed
Nipple/Fitting permanently installed in the FF2 at the factory.
u
D
Only use hex-head wrench on permanently installed Nipple/
Only use hex-head wrench on permanently installed Nipple/
Only use hex-head wrench on permanently installed Nipple/
Only use hex-head wrench on permanently installed Nipple/
Only use hex-head wrench on permanently installed Nipple/
Fitting when installing FF2 to the reservoir tank. DO NOT
Fitting when installing FF2 to the reservoir tank. DO NOT
Fitting when installing FF2 to the reservoir tank. DO NOT
Fitting when installing FF2 to the reservoir tank. DO NOT
Fitting when installing FF2 to the reservoir tank. DO NOT
USE VALVE TO HAND SPIN/TORQUE FF2 TO RESERVOIR
USE VALVE TO HAND SPIN/TORQUE FF2 TO RESERVOIR
USE VALVE TO HAND SPIN/TORQUE FF2 TO RESERVOIR
USE VALVE TO HAND SPIN/TORQUE FF2 TO RESERVOIR
USE VALVE TO HAND SPIN/TORQUE FF2 TO RESERVOIR
P o r t
P o r t
P o r t
P o r t
P o r t
T A N K !
T A N K !
T A N K !
T A N K !
T A N K !
3. Connect four service lines (one each) to the four down delivery
ports at location
OVER-TORQUE!)
4. Tee the four spring brake lines to make two connection points for
the FF2.
5. Connect one each Tee'd spring brake line to the two spring brake
ports at location
N O T OVER-TORQUE!)
6. Connect the supply line at location
180 lb. in. (DO NOT OVER-TORQUE!)
7. Connect the control line at location
120 lb. in. (DO NOT OVER-TORQUE!)
W W W W WARNING
ARNING
ARNING
ARNING
ARNING
s
!
•• •• •• •• •• DO NOT OVE
DO NOT OVE
DO NOT OVE
DO NOT OVER-TORQUE FITTINGS!
DO NOT OVE
MENDED TORQUE VALUES TO ACHIEVE PROPER "FITTING
MENDED TORQUE VALUES TO ACHIEVE PROPER "FITTING
MENDED TORQUE VALUES TO ACHIEVE PROPER "FITTING
MENDED TORQUE VALUES TO ACHIEVE PROPER "FITTING
MENDED TORQUE VALUES TO ACHIEVE PROPER "FITTING
TO FF2" CONNECTION AND AVOID SYSTEM LEAKS.
TO FF2" CONNECTION AND AVOID SYSTEM LEAKS.
TO FF2" CONNECTION AND AVOID SYSTEM LEAKS.
TO FF2" CONNECTION AND AVOID SYSTEM LEAKS.
TO FF2" CONNECTION AND AVOID SYSTEM LEAKS.
•• •• •• •• •• THE NEW FMVSS-121 REQUIREMENTS MAKE K
THE NEW FMVSS-121 REQUIREMENTS MAKE K
THE NEW FMVSS-121 REQUIREMENTS MAKE K
THE NEW FMVSS-121 REQUIREMENTS MAKE KEEPING
THE NEW FMVSS-121 REQUIREMENTS MAKE K
SUPPLY LINE PRESSURES ABOVE 100 PSI A NECESSITY FOR
SUPPLY LINE PRESSURES ABOVE 100 PSI A NECESSITY FOR
SUPPLY LINE PRESSURES ABOVE 100 PSI A NECESSITY FOR
SUPPLY LINE PRESSURES ABOVE 100 PSI A NECESSITY FOR
SUPPLY LINE PRESSURES ABOVE 100 PSI A NECESSITY FOR
GOOD AIR SYSTEM PERFORMANCE!
GOOD AIR SYSTEM PERFORMANCE!
GOOD AIR SYSTEM PERFORMANCE!
GOOD AIR SYSTEM PERFORMANCE!
GOOD AIR SYSTEM PERFORMANCE!
•• •• •• •• •• ATTEMPTING TO "DRIVE AWAY" P
ATTEMPTING TO "DRIVE AWAY" PRIOR TO FULL SPRING
ATTEMPTING TO "DRIVE AWAY" P
ATTEMPTING TO "DRIVE AWAY" P
ATTEMPTING TO "DRIVE AWAY" P
BRAKE RELEASE MAY CAUSE DAMAGE TO YOUR BRAKE
BRAKE RELEASE MAY CAUSE DAMAGE TO YOUR BRAKE
BRAKE RELEASE MAY CAUSE DAMAGE TO YOUR BRAKE
BRAKE RELEASE MAY CAUSE DAMAGE TO YOUR BRAKE
BRAKE RELEASE MAY CAUSE DAMAGE TO YOUR BRAKE
SYSTEM HARDWARE!
SYSTEM HARDWARE!
SYSTEM HARDWARE!
SYSTEM HARDWARE!
SYSTEM HARDWARE!
Rev. 2/02
VE INST
VE INST
ALLA
ALLA
VE INSTALLA
VE INST
ALLA
ALLATION
C.
Recommended Torque
in the FF2 at the factory.
in the FF2 at the factory.
in the FF2 at the factory.
in the FF2 at the factory.
E
. Recommended Torque is 180 lb. in. (DO NOT
D
. Recommended Torque is 180 lb. in. (DO
B
. Recommended Torque is
A
. Recommended Torque is
R-TORQUE FITTINGS!
R-TORQUE FITTINGS!
R-TORQUE FITTINGS!
R-TORQUE FITTINGS!
RIOR TO FULL SPRING
RIOR TO FULL SPRING
RIOR TO FULL SPRING
RIOR TO FULL SPRING
North American Sales Division
North American Sales Division
North American Sales Division
North American Sales Division
North American Sales Division
Haldex Limited
Haldex Limited
Haldex Limited
Haldex Limited
Haldex Limited
525 Southgate Drive, Unit 1
Guelph, Ontario CANADA N1G 3W6
Phone: (519) 826-7723
Fax: (519) 826-9497
L31107
TION
TION
TION
TION
FOLLOW RECOM-
FOLLOW RECOM-
FOLLOW RECOM-
FOLLOW RECOM-
FOLLOW RECOM-
EEPING
EEPING
EEPING
EEPING