Fontaine Ultra LT Manual

Fontaine Fifth Wheel
Ultra LT
Rebuild Procedures
• Disassembly
• Assembly
• Adjustments
Fontaine Parts Connection • 7574 Commerce Circle • Trussville, AL 35173
©2010 • LT-147 January 2010
www.fthwheel.com • 800-874-9780

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2
800-874-9780
Remove the jaw spring (item 27). Now remove the main spring
(item 26) from the pull handle. Remove the main spring (item 26)
from the operating handle.
Remove the cotter pin (item 33) from the pivot pin (item 20)
and washer (item 32) which attaches the operating handle
(item 31) to the locking wedge (item 30).
Remove the 5/8"-11 lock nut, at washer and
spacer (items 25, 24, 23) and 5/8"-11 hex head bolt
(item 19) which secures the secondary lock latch
(item 21) to the operating handle (item 31). Hex
head bolt is captured inside the secondary lock.
To set the fth the wheel in the closed position, rotate the jaw
towards the front of the fth wheel with a screw driver of
adequate length to keep hands and ngers out of the throat of
the wheel. This will partially close the wheel. Now pull out on
the pull handle a small amount and complete the rotation of the
jaw toward the front of the wheel. Allow the pull handle to go in
slowly for the wheel to completely close.
1. Set the fifth wheel in the
closed position
2. Remove the jaw spring
4. Remove the pivot pin clip/pin3. Remove the lock nut, flat
washer, spacer and hex nut
Dissassembly
Degrease fifth wheel before installing new parts
Cover plate removed for clarity. Refer to exploded view of assembly on page 6-7 to identify item number and parts.
Rotate
jaw counter-clockwise
toward the front of wheel
Pull handle
Main springs
(26)
Lock nut,
washer, and
spacer
(25), (24), (23)
Secondary
lock (21)
Operating
handle (31)
Cotter pin
(33)
Locking
wedge (30)
Jaw spring
(27)
23
24
25
19
21
Operating
handle (31)
20
31
30
31
32
33

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Remove the 1/2” hex head bolt,
spacer bushing, washer and lock
nut (items 15, 16, 17 & 22) which
secures the secondary lock latch
(item 21) to the pull handle. Remove
the pull handle and secondary lock.
Remove the pivot pin clip (item 29) from the long pivot pin
(item 7). Raise the top plate and remove the long pivot pin
(item 7) that secures the rotating locking jaw (item 28).
Remove the rotating locking jaw.
Remove the operating handle (item 31) and locking wedge
(item 30) by pulling the operating handle to the open position. This
will allow you to remove the operating handle from the wedge.
Remove the wedge (item 30) and short pivot pin (item 20). Turn the
adjustment rod (item 1) counter clockwise (outward) until it has
moved about two inches from starting position. This will eliminate
interference when removing and installing the locking jaw.
5. Remove the operating handle
and locking wedge
6. Remove the pull handle and
secondary lock.
7. Remove the rotating locking jaw
Dissassembly
Cover plate removed for clarity. Refer to exploded view of assembly on page 6-7 to identify item number and parts.
Operating
handle (31)
Locking
wedge (30)
Rotate
adjustment
rod (1) 2" from
starting position
Pivot pin
(20)
20
15
16
17
22
Secondary
lock (21)
Pull handle (18)
Pivot pin clip (29)
and pivot pin (7)
Rotating locking
jaw (28)
28
7
29

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Insert the pull handle. After applying a
light coat of grease to the pivot points,
insert the secondary lock latch (item
21) into the fth wheel. Attach the pull
handle to the secondary lock latch
using the 1/2” hex head bolt, spacer
bushing, washer and new lock nut
(items 15, 16, 17 & 22).
Insert the new short pivot pin (item 20) into the locking wedge
(item 30) after applying a light coat of grease. Insert the locking
wedge into the wheel. Move the locking wedge in behind the
rotating locking jaw (item 28) to verify operation. Now slide the
locking wedge back toward the outside of the wheel. This will
assist in installing the operating handle. Insert the end of the
operating handle (item 31) into the slot at the bottom of the fth
wheel and over the locking wedge pivot pin. Rotate the operating
handle towards the center of the fth wheel. This will slide the
locking wedge behind the locking jaw.
Before rebuilding the assembly, check
to make sure that there are no cracks in
the crossmembers or other components.
Also check bracket pin holes to ensure
they are not overly worn (pins should
fit snugly). Refer to exploded view of
assembly on page 6-7 to identify item
numbers and parts.
Insert the rotating jaw (item 28) after applying a light coating of
grease. Note: Insert the jaw so that the hole in the cover plate
lines up with the hole in the rotating jaw. Raise the fth wheel
and then insert the long pivot pin (item 7) into the fth wheel
and then into the rotating jaw. Note: Make sure the notched
portion of the pivot pin is inserted into the fth wheel rst.
Secure the pivot pin in place with a new pivot pin clip (item 29).
1. Insert rotating locking jaw
2. Insert the pull handle and
secondary lock
3. Insert wedge, and handle
Assembly
Adequate lubrication should be used
Refer to exploded view of assembly on page 6-7 to identify item number and parts.
Pivot pin clip (29)
and pivot pin (7)
Rotating locking jaw (28)
28
Secondary
lock (21)
Pull handle (18)
Operating
handle (31)
Locking
wedge (30)
Pivot pin
(20)
20
Rotating locking jaw (28)
7
29
15
16
17
22

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Make sure the fth wheel is completely closed. Attach the jaw
spring (item 27) to the rotating locking jaw. Now install main
spring (item 26) to the pull handle. Now install the main spring
(item 26) to the operating handle.
Open the fth wheel, insert a 2” kingpin and close the
wheel. Turn the adjustment rod (item 1) clockwise (inward)
until it contacts the end of the locking wedge. Now turn
the adjustment rod clockwise (inward) an additional 2-1/2
complete revolutions. This will give the recommended 0.525
mm (.02”) running clearance. Tighten the adjuster rod jam nut
(item 2). The fth wheel should operate freely and smoothly
without binding or interference.
Open the fth wheel, insert a 2” kingpin and close the
wheel. Turn the adjustment rod (item 1) clockwise (inward)
until it contacts the end of the locking wedge. Now turn
the adjustment rod clockwise (inward) an additional 2-1/2
complete revolutions. This will give the recommended 0.525
mm (.02”) running clearance. Tighten the adjuster rod jam nut
(item 2). The fth wheel should operate freely and smoothly
without binding or interference.
Attach the secondary lock latch (item 21) to the
operating handle (item 31) using the 5/8"-11 hex
head bolt (item 19) and new lock nut (item 25) with
at washer and spacer (items 24 & 23).
Note the orientation of the bolt (item 19) the
threads should be facing up.
5. Attach the secondary lock latch to
the operating handle
6. Attach springs 7. Adjust fifth wheel7. Adjust fifth wheel
Assembly
Refer to exploded view of assembly on page 6-7 to identify item number and parts.
Secondary
lock (21)
Contact plus 2-1/2 turns
Operating
handle (31)
19
21
31
Main springs (26)
Jaw spring
(27)
Adjustment
rod (1)
1
2
1
2
Lock nut,
washer,
and spacer
(25),(24),(23)
23
24
25
Attach the operating handle (item 31)
to the locking wedge using a cotter
pin (item 33) and washer (item 32) to
secure the connection.
4. Attach the operating handle to the
locking wedge
Cotter pin
(33)
Locking
wedge (30) Operating
handle (31)
32
33
31
Attach
here

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Repair kit (KIT-RPR-ULTL)
Item Description Quantity
7Pivot pin, long 1
20 Pivot pin, short 1
25 Lock nut, 5/8"-11 1
26 Main spring 2
27 Jaw spring 1
28
 Rotatinglockingjaw 1
29  Pivotpinclip 2
30  Lockingwedge 1
32  Washer,3/4" 1
33  CotterPin 1
Spring kit (KIT-SPR-ULT)
26 Main spring 2
27 Jaw spring 1
Adjuster rod kit (KIT-ROD-ULT)
1Adjustment rod 1
2Adjustment rod nut 1
Secondary lock kit (KIT-SEC-ULTL)
Item Description Quantity
15 Lock nut, 1/2"-13 1
16 Washer, 1/2" 1
17 Bushing, 5/16" 1
19 Hex head bolt, 5/8"-11 x 1.75" 1
21 Secondary lock 1
22 Hex head bolt, 1/2"-13 x 1.5" 1
23 Spacer bushing 1
24 Washer, flat 5/8" 1
25 Lock nut, 5/8"-11 1
Operating lever kit (KIT-OPR-ULTL)
19 Hex head bolt, 5/8"-11 x 1.75" 1
20 Pivot pin, short 1
23 Spacer bushing 1
24 Washer, flat 5/8" 1
25 Lock nut, 5/8"-11 1
31 Operating handle 1
32 Washer, 3/4" 1
33 Cotter Pin 1
Pull handle kit (KIT-PUL-ULTL)
15 Lock nut, 1/2"-13 1
16 Washer, 1/2" 1
17 Bushing, 5/16" 1
18 Pull handle 1
22 Hex head bolt, 1/2"-13 x 1.5" 1
Mounting pin kit (KIT-PIN-ULT)
3Bracket pin 2
5Bracket retainer pin 2
6Cotter pin 2
Bracket bushing (not pictured) 2
Air cylinder kit (KIT-AA-ULTL)
Item Description Quantity
8Lock nut, 1/2"-13 1
9Exhaust valve 1
Quick disconnect (not pictured) 1
10 Hex head bolt, 1/2"-13 x 1.75" 1
11 Air cylinder 1
12 Lock nut, 3/8"-16 1
13 Washer, 3/8" 1
14 Shoulder bolt, 3/8"-16 1
26 Main spring 1
Ultra LT rebuild diagram
6
8
9
10
11
12
13
14
7
1
2
3
4
5
6
5
4
15
16
26
26
27
28
29
17
19
21
18
22
23
24
25
32
33
31
30
20
3

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April 2007
Item Description Quantity
1Adjustment rod 1
2Adjustment rod nut 1
3Bracket pin 2
4Grease fitting 2
5Bracket retainer pin 2
6Cotter pin 2
Bracket bushing (not pictured) 2
7Pivot pin, long 1
8Lock nut, 1/2"-13 1
9Exhaust valve 1
Quick disconnect (not pictured) 1
10 Hex head bolt, 1/2"-13 x 1.75" 1
11 Air cylinder 1
12 Lock nut, 3/8"-16 1
13 Washer, 3/8" 1
14 Shoulder bolt, 3/8"-16 1
15 Lock nut, 1/2"-13 1
16 Washer, 1/2" 1
17 Bushing, 5/16" 1
18 Pull handle 1
19 Hex head bolt, 5/8"-11 x 1.75" 1
20 Pivot pin, short 1
21 Secondary lock 1
22 Hex head bolt, 1/2"-13 x 1.5" 1
23 Spacer bushing 1
24 Washer, flat 5/8" 1
25 Lock nut, 5/8"-11 1
26 Main spring 1
27 Jaw spring 1
28 Rotating locking jaw 1
29 Pivot pin clip 1
30 Locking wedge 1
31 Operating handle 1
32 Washer, 3/4" 1
33 Cotter Pin 1
Ultra LT rebuild diagram key

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©2010 Fontaine Parts Connection • LT-147 January 2010
All specifications are subject to change without notice.
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