atwood Specialty Couplers - Manual

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9
LITERATURE NUMBER
MPD 87985
THUMB LATCH
COUPLERS
ENGLISH, FRANÇAIS (et Canada) •Installation •Operation •Maintenance
Effective 11/21/07
SAFETY ALERT SYMBOLS
Safety Symbols alerting you to potential personal safety hazards. Obey all safety
messages following these symbols.
ƽ
WARNING
ƽ
CAUTION
avoid possible avoid possible
injury or death injury and/or property damage
FOR YOUR SAFETY READ ALL INSTRUCTIONS
BEFORE INSTALLATION AND OPERATION
Installer: Provide these instructions to the consumer.
Consumer: Read and keep documents available for future reference.
REFERENCE FIGURES FOUND ON PAGE 3
INSTALLATION
ƽ CAUTION
HAZARDOUS FUMES
• Adequate ventilation must be provided when welding.
PRODUCT DAMAGE
• Coupler latching mechanism must operate freely after welding installation.
•
Do not clamp ground strap to latch during welding.
WELDING INSTRUCTIONS
• M . I . G . OR STICK -Attach couplers with 5/32˝ fillet weld minimum.
• M . I . G . WELDING -Use A.W.S. ER 70S-3 or 6 wire or equivalent with a diam-
eter of .035 - .045. The recommended shielding gas mixture is 75% -
95% Argon & 25% - 5% CO
2
.
• STICK WELDING - Use E6011 A.W.S. welding rod or equivalent.
Recommended machine settings for specific electrode diameter are as
follows: 1/8” electrode set power between 115-130 Amps DC or 5/32”
electrode set power between 140-160 Amps DC.
UNDERSLUNG COUPLER
PART # 82680, 82681, 82682 13,000 lb. Capacity
Top Plate PART # 82740 or 22375
1. On I-beams remove approximately 9˝ of outside bottom flange of the
I-beams ( FIG 5-A) so coupler can be welded directly to the I-beam web.
For an alternative to removing a length of the I-beam flange:
a. Make two plates 9ˇ long x .135˝ thick x height of I-beam ( FIG 2-B & 5-E).
b. Weld the plates to the outside of the I-beam flanges.
c. Weld both plates full length top and bottom following
WELDING INSTRUCTIONS .
2. With bottom of beam contacting inside bottom coupler, butt front edge
of beams against back of ball housing. Edges of beams must make full
contact with inside surface of coupler sides.
3. On beams with flanges wider than 1-15/16˝, trim front corners ( FIG 2-C)
to allow beams to penetrate fully into coupler.
4. Following WELDING INSTRUCTIONS , weld full length, both sides of coupler,
with a continuous weld ( FIG 5-B). Weld must run from rear edge of
coupler past front edge of beam, then onto inside of coupler ( FIG 5-D).
Weld bottom rear edge of coupler to bottom of trailer frame.
ƽ CAUTION
COUPLER OR FRAME DAMAGE
•
Top support plates must be used with all underslung couplers.
5. Align hole in top plate with hole in coupler ( FIG 5-F). Following WELDING
INSTRUCTION to assure structural integrity of coupler attachment system,
weld top support plate to frame full length both sides and around the
corner to inside edges of the trailer frame (
FIG 5-C).
TOP MOUNT A-FRAME COUPLERS
ƽ CAUTION
COUPLER OR FRAME DAMAGE
•
A bottom support plate MUST be used with A-Frame couplers.
•
Weld completely around bottom plate following WELDING INSTRUCTIONS.
.............................................. BOX BEAM APPLICATION ..........................................
Part # 81916 (Kit includes 81917 bottom plate) 15,000 lb. Capacity
Part # 81912 13,000 lb. Capacity
SAE/CSA Class 4 Part # 81911, 81915 10,000 lb. Capacity
Bottom Plate PART # 81917, 82672, 83400, 83470, 83511, 84150, 84160, 86081
1. Penetration of trailer frame into coupler must be 8˝ minimum meas-
ured along coupler sides ( FIG 1-A).
2. Following WELDING INSTRUCTIONS weld full length on both sides, from rear of
coupler under flange and past front edge of trailer frame to inside of
coupler (
FIG 1-B).
3. A bottom support plate must be used to assure structural integrity of
coupler attachment system. Align hole in bottom support plate with
hole for jack in coupler (
FIG 1-C). If there are mounting holes in the
support plate, align them with the mounting holes in the coupler.
Following
WELDING INSTRUCTIONS to assure structural integrity of coupler
attachment system, weld bottom support plate to frame full length
both sides and around the corner to inside edges of the trailer frame.
.................................................. I-BEAM APPLICATION ..............................................
Part # 81916 (Kit includes 81917 bottom plate) 15,000 lb. Capacity
Part # 81912 13,000 lb. Capacity
SAE/CSA Class 4 Part No. 81911, 81915 10,000 lb. Capacity
Bottom Plate PART # 81917, 82672, 83400, 83470, 83511, 84150, 84160, 86081
1. For I-beams, remove approximately 9˝ of outside top flange of the
I-beam ( FIG 2-A), welding coupler directly to web of beams.
For an alternative to removing a length of the I-beam flange:
a. Make two plates 9˝ long x .135˝ thick x height of I-beam ( FIG 2-B).
b. Weld the plates to the outside of the I-beam flanges.
c. Weld both plates full length top and bottom following
WELDING INSTRUCTIONS .
2. With top of beams contacting inside top of coupler, butt front edge
of beams against back of welded plate on coupler. Edges of beams
must make full contact with inside surface of coupler sides.
3. On beams with flanges wider than 1-15/16˝, trim front inside corners
to allow beams to penetrate fully into coupler ( FIG 2-C).
4. Penetration of frame into coupler must be 8˝ minimum measured
along sides ( FIG 1-A.)
5. Following WELDING INSTRUCTIONS , weld full length on both sides, from rear of
coupler under flange and past front edge of trailer frame to inside of cou-
pler (
FIG 1-B).
6. A bottom support plate must be used to assure structural integrity of
coupler attachment system. Align hole for jack in bottom support
plate with hole for jack in coupler (
FIG 1-C). Follow WELDING INSTRUCTIONS to
assure structural integrity of coupler attachment system weld bottom
support plate to trailer frame full length both sides and around the
corner to inside edges of the trailer frame.