Atwood Mobile Products MPD 87083 User Manual

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Page 1

LITERATURE NUMBER MPD 87083

POWER JACK

RV and Marine Applications

ENGLISH, FRANCAIS (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.

 WARNING  CAUTION

avoid possible avoid possible injury or death injury and/or property damage

FOR YOUR SAFETY READ ALL INSTRUCTIONS

Installer: Provide these instructions to the consumer. Consumer: Keep documents for future reference.

The Atwood Power Jack is a 12-volt DC motor driven screw jack intended for use on recreational type and marine trailers. Patent # D349800. Jack is used to level trailer or raise and lower coupler for hookup to tow vehicle.

BEFORE INSTALLATION AND OPERATION

 CAUTION

PERSONAL INJURY/PROPERTY DAMAGE

• Retract jack fully before towing.

• Do not use blocks to increase height of jack.

• Use 3500 lb. Heavy Duty Power Jack if you use equalizer bars between the trailer and the tow vehicle.

LIGHT WT STANDARD DELUXE HEAVY DUTY MARINE

Max. Lifting Cap. LBS 1500 2500 2500 3500 1000

INSTALLATION

1. Block tires of trailer and securely support trailer tongue.

2. The Atwood RV Power Jack is designed to attach to the top surface of an A-frame type tongue having mounting holes typical of the Atwood A-frame couplers FIG 1. Use coupler installation instructions (MPD 87984) if installing coupler. The Marine Power Jack attaches to the side of a straight tongue trailer.

3. A lower support plate must be used for side support of the RV jack on the lower surface of the A-frame

HOLE DIAMETERS: Light Weight 2.02˝ (MIN) 2.09˝ (MAX)

Standard / Short / Deluxe / Heavy Duty 2.20˝ 2.28˝

Hole in lower support plate must align with hole in coupler.

TO ORDER LOWER SUPPORT PLATE: Light Weight - Atwood MPD 80263

Standard / Short / Deluxe / Heavy Duty - Atwood MPD 80570

Using 1/8˝ fillet weld, No. E6011 AWS welding rod 1/8˝ diameter, machine amps (AC or DCRP) at 160-180 with 50 volts, weld plate full length on each side to underside of A-frame. The maximum frame height is 6 inches.

4. Place RV jack through holes in coupler and lower support plate,

FIG 1-A. Attach with three (3) bolts (3/8˝ dia. x 5/8˝ long, grade 5,

(provided) FIG 1-B. NOTE: Torque bolts to 15 foot lbs. minimum /20 foot lbs. max.

Note: There must be metal to metal contact between jack and coupler.

The three mounting bolts with attached star washers must be used. The star washers are designed to remove paint on the surface of jack flange. The bolts also should remove paint from the mounting holes in coupler. If there is a grounding problem (i.e. no power) check these two surfaces to be sure there is metal to metal contact between jack and coupler. For wiring, see WIRING ILLUSTRATIONS

SHORT

FIG 1.

FIG 2 & 3.

5. Attach Marine Jack as shown.

6. Route wire lead from motor along trailer tongue to battery. Secure lead to jack housing and trailer frame using cable ties or equivalent.

7. Remove fuse from fuse holder. Connect the wire lead from the jack directly to the positive (+) terminal of the battery. Replace the fuse into the fuse holder.

For auxiliary battery, connect lead to auxiliary battery positive (+) terminal so that jack may be used when connected to 115v. For additional wire, use #10 stranded copper wire or larger.

8. After reinstalling fuse, check installation by pressing switch marked “EXT” for jack extension or “RET” to retract the jack.

9. On the Short, Deluxe, Heavy Duty or Marine power jacks, check utility light by moving switch to “ON” or “OFF”.

 CAUTION

HAND OR FINGER INJURY

• Hold foot pad near the bottom of the tube, when installing foot

pad or caster.

10. Place foot pad, or caster for Marine power jack, over the end of

jack, align holes, and place pin through holes. A cotter pin clip goes through the hole in the pin, preventing pin from coming out.

OPERATION

1. To raise or lower jack, press switch marked “EXT” or “RET”. “Extend” and “Retract” refer to the jack, not the trailer.

2. Release switch when jack nears full retraction or full extension to prevent unnecessary wear on motor clutch.

a. When jack reaches its maximum extended or retracted length

or maximum load, a clicking noise will be heard. This is the overriding clutch built into the motor to prevent overload. Release switch immediately when clicking is heard. If the jack has been over extended or retracted, it may bind. If so, operate with the manual override handle, per break it free.

b. When the heavy duty power jack is being retracted, there may

be some audible noise, coming from the brake area. This is normal and is due to the high load for which this jack is rated.

3. In case of electrical failure- raise or lower jack as follows:

STANDARD & LIGHTWEIGHT POWER JACKS

a. Remove top cover by loosening the four screws. b. Remove screws holding motor to mounting plate. c. Lift motor off jack. d. Turn hex drive nut with wrench or optional manual drive

handle, part # 87891 (

e. To reinstall electric motor on jack, rotate hex drive nut so the

pin in the hex drive nut aligns with slot in motor drive shaft. f. Tighten hex nut to 25 inch lbs. torque. g. Reinstall motor and fasten with screws. h. Reinstall top cover and fasten with screws.

SHORT, DELUXE OR MARINE JACKS

Place manual override handle ( engage drive pin. Rotate handle clockwise to raise or counterclockwise to lower the camper.

FIG 1-C).

FIG 1-C) into alignment tube and

STEP 3 below, to

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HEAVY DUTY POWER JACKS

Place manual override handle (

FIG 1-C) into alignment tube and

engage drive pin. Rotate handle counterclockwise to raise or clockwise to lower the camper.

MAINTENANCE

1. Before each use, inspect jack tubes and replace if bent or damaged.

2. If wiring is connected to battery terminal, inspect at least twice each year for corrosion. Clean with a solution of baking soda and water, then apply a thin coat of grease. NOTE: The motor ground screw

FIG 1-D) and mounting bolts (FIG 1-B) must be cleaned too if a ground

( continuity problem occurs.

3. Once each year, extend jack as far as possible and clean inner ram tube. Coat tube with light coat of silicone spray lubricant.

The Electric Drive Motor Landing Leg system is protected by a 30 amp fuse. If replacement is necessary, replace only with a Buss Type AGC-30 fuse or equivalent, available in automotive supply stores.

Guides are only intended for use on Atwood®products by service technicians who have successfully completed Atwood®training. This guide should be used in conjunction with the appropriate Instruction Manual provided with the product and any applicable Industry Standards. This is not intended to be a complete list. Please direct questions concerning service of Atwood 866-869-3118 before proceeding.

products to

 WARNING

PERSONAL INJURY AND/OR PRODUCT DAMAGE

• If any of the following conditions develop, the trailer must not be used until proper corrective action is taken.

CONDITION WITH SOLUTIONS

MOTOR WILL NOT OPERATE

No or low voltage..........................Check battery & electrical connections.

Jack flange not making good ......Clean paint or dirt from coupler frame

contact to provide adequate

ground with coupler surface

Blown fuse ....................................Replace with 30 amp AWG fuse

Loose wires on ON/OFF switch ....Secure wire connections

ON/OFF switch faulty ....................Replace switch

Motor faulty ..................................Replace motor

POOR GROUND

WHEN BUTTON IS PRESSED ON JACK

Jack doesn’t operate ....................Inspect motor mounting bolt for Loctite

Jack operates only partially up or down, or Jack runs intermittently

Must have minimum of 10 VDC

If Loctite x 3” screw and two lock washers. If bolt unavailable, clean present bolt and hole with wire buffing wheel. Inspect bolt

found, replace with new 1/4-20

Power Jack

TROUBLE SHOOTING GUIDE

Effective: 11/21/07

MOTOR CLUTCH ENGAGES

Normal if jack leg is at fully ..........None, but let go of switch when you hear

retracted or extended position the clutch

Worn worm gear ..........................Replace jack ram

Dirty inner ram tube......................Clean ram tube and coat with light coat

Bent inner ram ..............................Replace inner ram

Clutch faulty ..................................Replace motor

Jack at angle ................................Secure mounting bolts and ensure a

Excessive tongue weights ............Determine if jack is adequate for tongue

UTILITY LIGHT DOES NOT WORK

Loose wires on the ON/OFF ..........Secure wire connection

switch

Bad light bulb................................Replace bulb

AMP DRAW

Range of motor ............................8-45 amps

IMPORTANT CAUTION - If equalizer bars are attached to the tow vehicle and the trailer while operating the power tongue jack, you may experience the motor clutching the moment the jack sees load. This will occur because you are lifting both the tongue

of the trailer and the rear of the tow vehicle. The 1500 lb. and

2500 lb. acme screw jacks cannot lift this excessive weight. To overcome this excessive weight, you should upgrade to the 3500 lb. power jack. The ball screw mechanism utilized in this jack should allow you to lift this load.

hole. If dirty, clean with a 1/4-20 tap.

of silicone spray

support plate is used.

weight.

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REPLACEMENT SERVICE PARTS / PIÉCES DÉTACHÉES

ITEM LIGHT WT STANDARD SHORT DELUXE HEAVY DUTY MARINE DESCRIPTION

ARTICLE LÉGER STANDARD NORMAL DE LUXE LOURD MARIN DESCRIPTION

1 87571 87571 87595 87595 87595 87595

2 87060 87060 87057 87057 87057 87057 3 87055 87055 87942 87942 87942 87942 Motor Ground Screw / Vis 4 86111 86111 86111 86111 86111 86111

5 75367 75367 75625 75625 75625 75625

6 N/A N/A 87916 87916 87916 87916

7 N/A N/A 87108 87108 87108 87108

8 N/A N/A 88002 88002 88002 88002 9 N/A N/A 70298 70298 71132 70298

10 N/A N/A 87941 87941 87941 87941

11 87573 87573 87597 87597 87597 87597

12 N/A N/A 87585 87585 87585 87585 13 N/A N/A 87591 87591 87591 87591 Lens / Lentille 14 87035 87035 87035 87035 87035 87035

15 80237 80512 87489 87500 87559 N/A

16 N/A N/A 87847 87847 87847 87847 17 70229 70229 70667 70667 70667 70667 Pin / Tige 18 87568 87568 87598 87598 87598 87598

19 N/A N/A 87586 87586 87586 87586

20 87570 87570 87570 87570 87570 87570

21 87327 87327 87327 87327 87327 87327

22 N/A N/A 87599 87599 87599 87599 23 N/A N/A N/A N/A N/A N/A Fuse▲ / Fusibles

24 87176 87176 87176 87176 87176 87176 Mounting Bolt / Boulon

OPTIONAL OPTIONAL 87891 87891 87891 87891

25 26 70269 70269 70269 70269 N/A 70269

27 80238 87021 87021 87021 87021 --

28 87709 87709 87709 87709 70215 87709

29 87077 87077 N/A N/A NA N/A 30 87569 87569 N/A N/A N/A N/A 31 87150 Bracket / Patte

32 84037 Caster / Roue pivotante

*912 type T5 12 candle power *912 type T5 12 candelas

▲

Buss Type AGC-30 amp fuse▲Buss type AGC-30 à fusible

Upper Cover Couvercle supérieur Cover Screw Vis du couvercle

Lock Washer Rondelle de blocage Motor and Terminals Moteur et bornes Cover Tube Tube du couvercle Bevel Gear Kit Pignon conique Gear Housing Cover Couvercle de la boîte de vitesse Drive Pin Goupille d’entraînement Drive Shaft Arbre d’entraînement Lower Cover Couvercle inférieur Wire & Light Bulb* Ampoule électrique*

Hole Plug Bouchon de l’orifice

Jack Hsing & Ram Asy 16˝ trvl

Enveloppe du vérin et corps du cric à course de 16 po Washer Support Support de rondelle

Ground Wire Fil de terre Light Switch Commutateur d’éclairage Motor Switch Commutateur du moteur Strain Relief Bushing Bague de bride de cordon Jumper Wire & Fuse Fil de connexion et fusible

▲

Manual Drive Handle Manette de commande manuelle Cotter Pin Goupille fendue Round Foot Pad Coupelle ronde Clevis Pin Axe de chape Hex Drive Nut Écrou de commande hexagonal Fuse Wire Fil du fusible

Marine Power Jack

Standard & Lightweight Power Jack

Cric électrique service normal et léger

Short, Deluxe, Heavy Duty & Marine Power Jack

Cric électrique service court, deluxe et lourd

6 7 8

21 23

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GROUND

TO MOTOR

SCREW

BLACK FUSE WIRE

RED LEAD

FROM MOTOR

YELLOW LEAD FROM MOTOR

RED JUMPER FROM FUSE WIRE

BLACK WIRE FROM LAMP BASE

SPADE CONNECTOR

BLACK JUMPER FROM GROUND WIRE

BLACK GROUND WIRE W/BLACK JUMPER

GROUND TO MOTOR

SCREW AT ASSEMBLY

BLACK FUSE WIRE W/RED JUMPER

(DELUXE) - RED LEAD (HEAVY DUTY) - YELLOW LEAD FROM MOTOR

(DELUXE) - YELLOW LEAD (HEAVY DUTY) - RED LEAD FROM MOTOR

Lightweight & Standard Short, Deluxe & Heavy Duty

POWER JACK WIRING ILLUSTRATIONS

FIL DE TERRE

À LA VIS DU

MOTEUR

FIL NOIR DU FUSIBLE

FIL CONDUCTEUR

ROUGE DU MOTEUR

FIL CONDUCTEUR

JAUNE DU MOTEUR

FIL DE CONNEXION ROUGE DU FIL DU FUSIBLE

FIL NOIR DE LA BASE DE LA LAMPE

CONNECTEUR DE COSSE

FIL DE CONNEXION NOIR DU FIL DE TERRE

FIL DE TERRE NOIR AV. FIL DE CONNEXION NOIR

FIL DE TERRE À LA VIS DU

MOTEUR À L'ASSEMBLAGE

FIL NOIR DU FUSIBLE FIXÉ AU FIL DE CONNEXION

FIL ROUGE (DE LUXE) FIL JAUNE (DE GRANDE CAPACIT

)

DU MOTEUR

Cric Électrique Standard Cric Électrique De Luxe et Haute Capacité

CRIC ÉLECTRIQUE SCHÉMAS DE CABLAGE



FIL JAUNE (DE LUXE) FIL ROUGE (DE GRANDE CAPACIT

)

DU MOTEUR

RED JUMPER FROM FUSE WIRE

BLACK WIRE FROM LAMP BASE

SPADE CONNECTOR BLACK JUMPER FROM GROUND WIRE

BLACK GROUND TO VEHICLE WIRING HARNESS

RED FUSE WIRE TO VEHICLE WIRING HARNESS

RED LEAD FROM MOTOR

YELLOW LEAD FROM MOTOR

MARINE POWER JACK WIRING ILLUSTRATIONS

FIL DE CONNEXION ROUGE DU FIL DU FUSIBLE

FIL NOIR DE LA BASE DE LA LAMPE

CONNECTEUR DE COSSE

FIL ROUGE DU FUSIBLE AU FAISCEAU DE CÂBLES DU VÉHICULE

FIL DE CONNEXION NOIR DU FIL DE TERREE

FAISEAU DE CÂBLES NOIR DE LA TERRE AU VÉHICULE

FIL CONDUCTEUR ROUGE DU MOTEUR

CRIC ÉLECTRIQUE MARIN

SCHÉMA DE CÂBLAGE

FIL CONDUCTEUR JAUNE DU MOTEUR

Attachment

Hardware

(included)

Boulonnerie de fixation (incluse)

Page 5

ATWOOD POWER JACK LIMITED WARRANTY

Atwood Mobile Products warrants to the original owner this product will be free of defects in material and workmanship for a period of two years from the date of purchase. Atwood’s liability hereunder is limited to the replacement of product, repair of product or replacement of product with a reconditioned product, at the discretion of the manufacturer. The warranty is void if the product has been damaged by accident, unreasonable use, neglect, tampering or other causes not arising from defects in material or workmanship. The warranty extends to the original consumer purchaser of the product only, and is subject to the following conditions:

1. For two (2) years commencing with the date of purchase, Atwood will provide the replacement or repair of any Hardware System and Components that are found to be defective by Atwood in material or workmanship.

2. In the event of a warranty claim, the Original Owner must contact the Atwood Consumer Service Department, 1120 North Main, Elkhart, IN 46514, telephone: 866-869-3118, fax: 574-206-9655. Warranty claim service must be performed as approved by the Atwood Consumer Service Department. Warranty replacement hardware systems and components or parts will be furnished freight prepaid, labor cost to repair or replace will be limited to the amount of the original purchase price of the systems and components. The replaced warranty products or parts become the property of Atwood Mobile Products and must be returned to the Atwood Consumer Service Department freight prepaid, unless prior arrangements have been agreed to.

3. This limited warranty is valid only when the product is applied, installed, maintained and operated in accordance with this Atwood Installation, Maintenance and Operating Manual. Any deviation from these recommended specifications must be approved in writing by Atwood.

4. Any implied warranties are limited to the duration of this limited warranty as stated above. Atwood does not assume responsibility for consequential damage or loss, including loss of use of vehicle, loss of time, inconvenience, expense for gasoline, telephone, travel, lodging, loss or damage to personal properties, or loss of revenues. Some states do not allow limitations on how long an implied warranty lasts or limitations on consequential damages, so the above limitations may not apply to you. This limited warranty gives you specific legal rights which may vary from state to state.