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atwood A-Frame Jacks User Manual

Jack screws fixed mount jacks a-frame jacks, Installation

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1

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

Installer:

Provide these instructions to the consumer.

Consumer: Read and keep documents available for future reference.
Capacity Definition: The supporting, or support, capacity is the maxi-
mum vertical load that the jack can support.

ƽ

WARNING

PERSONAL INJURY / PRODUCT DAMAGE

Never exceed the rated capacity stamped or labeled on jack tube.

Jacks must be installed according to instructions provided to ensure
safe operation.

INSTALLATION

ƽ

CAUTION

HANDLE MAY INJURE OR DAMAGE PROPERTY

BEFORE INSTALLATION

,

JACK HANDLE MUST CLEAR ALL OBSTRUCTIONS WHEN

THEY ARE IN USE

.

Install jacks in accordance with provided instructions.

ƽ

CAUTION

HAZARDOUS FUMES

Adequate ventilation must be provided when welding.

WELDING INSTRUCTIONS

M

.

I

.

G

.

OR STICK

- 5/32˝ fillet weld minimum.

M

.

I

.

G

.

WELDING

- Use A.W.S. ER 70S-3 or 6 wire or equivalent with a

diameter 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 diamterer are
as follows: 1/8” electrode set power between 115-130 Amps DC or
5/32” electrode set power between 140-160 Amps DC.

Jack Screws

Jack screws are jacks with no mounting plates or brackets. Atwood
Mobile Products Engineering Department (574-262-2655) must authorize all
mounting (except U-Bolt Mounting) of jack screws for each application.
WELD-ON APPLICATION:
Supporting Capacity 1,000 lbs.

1. Weld jack to backing plate following

WELDING INSTRUCTIONS

. Weld full

length of bracket on both sides.

Fixed Mount Jacks

Fixed mount jacks are only for use on 3˝, 4˝ or 5˝ frame or channel.

1. Install bolts through top holes in jack bracket and mounting strap,

then attach nut and lock washer

FIG

1.

2. Position jack on trailer tongue and repeat Step 1 for bolts below

trailer tongue

3. Torque to 25 ft. lbs.

A-Frame Top Mount Jacks-

1,000 - 5,000 lb. Jack Capacity

ƽ

CAUTION

COUPLER OR FRAME DAMAGE

A bottom support plate must be used with all A-Frame Top Mount
Jack Screws.

BOLT-ON APPLICATION:

1. Use 3-3/8˝ - 16 UNC Grade 5 bolts to attach A-frame jack mounting

plate to coupler

FIG

2-A or top support plate

FIG

3-A. Torque to 15-

20 ft. lbs.

2. Weld top or bottom support plate to trailer frame following

WELDING

INSTRUCTIONS

. Weld completely around support plate to trailer frame

FIG

2 & 3-B.

WELD-ON APPLICATION:

1. Follow

WELDING INSTRUCTIONS

and completely weld around A-frame jack

mounting plate.

2. Weld top or bottom support plate to trailer frame following

WELDING

INSTRUCTIONS

. Weld completely around support plate to trailer frame.

MOBILE HOME
A-Frame Bottom Mount Jack -

6,000 - 11,000 lb. Jack Capacity

The following installation instructions vary according to the type of cou-
pler mounted on the trailer frame.

STRADDLE MOUNT COUPLER (FIG 4)
For complete Atwood Straddle Mount Coupler Installation, Operation,
and Maintenance instructions please see MPD 87985.

ƽ

CAUTION

PRODUCT DAMAGE

Straddle mount couplers are to be used only on mobile homes.

Top and bottom support plates MUST be used with all Straddle
Mount Couplers.

Must use 50

˚

coupler with a 50

˚

A-frame only.

Must use 60

˚

coupler with a 60

˚

A-frame only.

Larger beam reinforcements and improved attachments may be nec-
essary for adequate structural capacity.

COUPLER P

/N #

83461, 84102 - 50˚ mount

32,000 lb.

CAP

.

COUPLER P

/N #

83551 - 60˚ mount

32,000 lb.

CAP

.

Top Support Plate

P/N

#82740 83480 (50

˚)

, or 83670 (60

˚)

Bottom Plate

P/N

82672, 83400, 83470, 83511, 84150, 84151, 84160,
84161, 86081

COUPLER P

/N #

84140 - 50˚ mount

40,000 lb.

CAP

.

COUPLER P

/N #

83462 - 50˚ mount

44,000 lb.

CAP

.

COUPLER P

/N #

84060 - 60˚ mount

40,000 lb.

CAP

.

COUPLER P

/N #

83549 - 60˚ mount

44,000 lb.

CAP

.

Top Support Plate

P/N

#83480 (50

˚

), or 83670 (60

˚

)

Bottom Support Plate

P/N

#82672, 83511, 84150, 84160, 84151, 84161

1. Align bottom support plate so that jack is as far forward as possi-

ble, but still clears the edges of the A-Frame members and the top
back of coupler. Outside edges of bottom support plate must
extend to or past web of beam.

2. Follow

WELDING INSTRUCTIONS

. Weld bottom support plate to bottom of

frame

FIG

4 -B.

3. Weld full length both sides and around the corners to inside edges

of the A-Frame beam.

ENGLISH, FRANCAIS

(et Canada)

•Installation •Operation •Maintenance

Effective 12/11/07

JACK SCREWS

FIXED MOUNT JACKS

A-FRAME JACKS

LITERATURE NUMBER

MPD 87840

9

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