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Summary of Contents for J&M 250-7S
- Page 1 OPERATORS MANUAL J. & M. Mfg. Co., Inc. 284 Railroad Street - P.O. Box 547 Fort Recovery, OH 45846 Ph: (419) 375-2376 Fax: (419) 375-2708 www.jm-inc.com...
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Page 2: Table Of Contents
Table of Contents 3 ............To the Dealer 4-5 . -
Page 3: To The Dealer
To The Dealer Read manual instructions and safety rules. Make sure all items on the Dealer’s Pre-Delivery and Delivery Check Lists are completed before releasing equipment to the owner. The dealer must complete the Warranty Registration found on the Dealer Portal website located at dealer.jm-inc.com and return it to J. -
Page 4: General Information
General Information TO THE OWNER: The purpose of this manual is to assist you in operating and maintaining your gravity wagon in a safe manner. Read it carefully. It furnishes information and instructions that will help you achieve years of dependable performance and help maintain safe operating conditions. - Page 5 General Information BOLT TORQUE CHART Always tighten hardware to these values unless a different torque or tightening procedure is listed for specific application. Fasteners must always be replaced with the same grade as specified in the manual parts list. Always use the proper tool for tightening hardware: SAE for SAE hardware and Metric for Metric hardware. Make sure fastener threads are clean and you start thread engagement properly.
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Page 6: Specifications
Specifications 250-7SB 385SD 440SD 540SD 680SD 760SD 250-7S 10’-3” 12’-4” 15’-0” 15’-0” 16’-6” 16’-6” 10’-3” 6’-0” 7’-2” 6’-9” 7’-10” 7’-11” 8’-7” 4’-9” 8’-4” 9’-2” 8’-11” 10’-0” 10’-2” 10’-10” 6’-7” 6’-2” 6’-10” 7’-4” 7’-4” 7’-8” 7’-8” 5’-8” 7’-9” 8’-7” 10’-4” 10’-4”... -
Page 7: Safety Rules
Safety Rules ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! • Safety is a primary concern in the design and manufacture of our products. Unfortunately, our efforts to provide safe equipment can be erased by an operator’s single careless act. In addition, hazard control and accident prevention are dependent upon the awareness, concern, judgment, and proper training of personnel involved in the operation, transport, maintenance and storage of equipment. -
Page 8: Safety Signs
Specifications Safety Signs ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Replace Immediately If Damaged or Missing CAUTION FASTEN BOX SECURELY TO WAGON GEAR. KEEP AWAY FROM MOVING PARTS. DO NOT CLIMB INTO GRAVITY TANK. BEFORE HIGHWAY TRAVEL, SECURE A SLOW-MOVING VEHICLE EMBLEM TO THE REAR OF THE BOX IN ACCORDANCE WITH STATE AND LOCAL LAWS. - Page 9 Specifications Safety Signs CAUTION FASTEN BOX SECURELY TO WAGON GEA KEEP AWAY FROM MOVING PARTS. DO NOT CLIMB INTO GRAVITY TANK. BEFORE HIGHWAY TRAVEL, SECURE A SLOW-MOVING VEHICLE EMBLEM TO THE REAR OF THE BOX IN ACCORDANCE WITH STATE AND LOCAL LAWS. MAKE SURE ALL FLASHER AND TURN INDICATOR/BRAKE LIGHTS ARE WORKING PROPERLY BEFORE INCIDENTAL HIGHWA...
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Page 10: Initial Operation & Maintenance
Initial Operation / Maintenance WARNING BE CERTAIN THAT ALL POWER IS SHUT OFF BEFORE SERVICING THE GRAVITY BOX. Before the gravity box is put into service: Has the track assembly (opens door) been lubricated for less wear on the sprocket and track and for easier door operation. Has the SMV (Slow Moving Vehicle) Emblem been positioned with a point of the triangle upward and as near to the rear and centered or as near to the left of center of the unit as practicable? Is it located two to ten feet above the ground measured from the lower edge of the emblem? - Page 11 Operations/ Maintenance IMPORTANT: Keep the tires properly inflated. Both under inflation and over inflation can greatly reduce tire life. • Inspect bracing and welds and repair if needed. Failure to repair could cause extensive damage and greatly reduce the life of the unit.
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Page 12: Set Up Instructions
Set Up Instructions NOTE: The left and right side of the Gravity Wagon is determined by standing behind and facing the rear of the wagon. Inspection Window • Install the Oval Window Grommets in the window cutouts of the Gravity Wagon. When installed properly the thicker part of the Oval Window Grommet will be on the inside of the Wagon. - Page 13 Set Up Instructions Corners • Bolt sideboard between sideboard corner and backing plate using (6) 3/8” x 1” SF bolts and SF nuts. (Figure 2) • Now tighten all of the nuts and bolts. Backing Plate Side Board Corner Figure 2 Ladder •...
- Page 14 Set Up Instructions Chute • Attach the chute to the Gravity Wagon using (2) 3/4” x 1” hex bolts and (2) lock nuts. NOTE: Do Not over tighten the bolts, the chute should move freely. Optional Center Dump Chute • Position and secure the Side Dump Chute in the transport position.
- Page 15 Set Up Instructions • Route the 7-Wire Connector End of the Main Harness through the Rear Pig Tail Assembly and secure the 7-Wire Nose Box to the Rear Angle Bracket using (2) 1/4” x 1” carriage bolt and flange nut. (Figure 6) •...
- Page 16 Set Up Instructions Figure 9 Figure 10 Manual Storage Container • Mount the Operator’s Manual Storage Container to the outside face of the front leg using a 1/4” x 1” bolt and a 1/4” flange nut to the hole highlighted in figure 9. •...
- Page 17 Set Up Instructions IMPORTANT: Set-up work must be preformed by qualified servicemen only. • Mount tires on the wheels and inflate the 325/65 R22.5 tires to 75 PSI or for 385/65 R22.5 tires the correct pressure is 70 PSI. • Mount the wheels to the hubs and tighten the flat hub nuts to 190 ft.
- Page 18 13 Ton Running Gear With Optional Brakes • Mount the brakes lines from the rear of the master cylinder to the Drum Brakes. Be careful not to over tighten the fittings and strip the threads. Use care in shaping brake lines to avoid sharp bends or kinks. Be sure to use a “Double-Flaring” type of tool on steel tubing to assure tight leak proof connections.
- Page 19 13 Ton Running Gear With Optional Brakes Description Part. No Drum Cluster Left (includes wheel cylinder)(DRBA-L) JM0027922 Drum Cluster Right (includes wheel cylinder)(DRBA-R) JM0027931 Brake Drum JM0027928 Brake Line Tee JM0027967...
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Page 20: Bleeding The Brake Lines
Specifications Bleeding The Brake Lines METHOD ONE (requires two people) Close all bleed screws. Start with the wheel furthest from the master cylinder. Slip a transparent bleed hose on the bleeder stem and place the other end of the hose in a clean container which is partially filled with fluid at all times. The first person depresses the brake plunger SLOWLY (take 3-5 seconds). - Page 21 Specifications Gravity Wagon Trail Adjustment • Keep tongue bolt tightened. The tongue bolt should be as tight as possible without over restricting the vertical motion of the hitch. • An extra washer (shown below) can be added if the nut is tightened so far that it runs out of threads before the tongue bolt is as tight as possible.
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Page 22: Parts
Parts... - Page 23 Parts Description Part No. 1/4"-20 x 3/4" Gr5 Z Hex Bolt JM0001507 385 SD Sideboard JM0017295 385 SD Endboard JM0017294 385 SD Divider Assembly JM0017315 385 SD Sideboard Corner JM0017322 7 Rung Gravity Wagon Ladder Weldment JM0019104 Manual Canister JM0010115 Wheel &...
- Page 24 Door Wheel Assembly (2015 & Older) Description Part. No. Complete Door Wheel Assembly (20-1/4”)(CWA250) JM0018884 Complete Door Wheel Assembly (28”)(CWA750) JM0018879 Welded Guide Assembly (WGA-1034) JM0018864 2-1/2” USS Flat Washer JM0018982 Track Assembly (20-1/4”)(TA-2014) JM0018861 3/8-16 X 1-1/2” Gr5 Z SF Hex Bolt (161200) JM0001633 Wheel Pin &...
- Page 25 Door Assembly Non-Divider Divider Option Option Description Part. No 3/8” -16 Gr5 Z SF Hex Nut JM0002152 3/8"-16 x 1" Gr5 Z SF Hex Bolt JM0002092 385 Door JM0017279 Rack Assmebly w/ Short Track JM0018884 Flood Light JM0037154 385 SD Chute JM0017314 Center Dump Chute Weldment - 385 JM0027879...
- Page 26 Roll Tarp Description Part. No. 385 Front Face Plate JM0001555 Tarp Nylon Riser JM0000196 385 Endcap Front (Top) JM0001555 1/4”-20 x 1/2” Gr5 Z Hex Bolt JM0001481 1/4”-20 Gr5 Z Serrated Flange Hex Nut JM0001630 1/4”-20 x 5/8” Gr5 Z Hex Bolt JM0001479 385 Endcap Rear (Top) JM0001554...
- Page 27 Roll Tarp Rear Endcap Front Endcap Crank Handle Holder Tarp Stand-Off Crank Handle U-Joint Bow Support Tarp Assembly...
- Page 28 Light Harness Guide Flood Light Light Enhancer Light Harness 7 Wire Connector End Main Wiring Harness Run Wiring Harness Through Steel Runner 7 Wire Nose Box Flood Light Description Part. No. Red Light LED JM0034389 Amber Light LED JM0034392 Light Harness JM0027773 Light Enhancer JM0010566...
- Page 29 13 Ton Running Gear Parts Description Part. No. Tongue Latch Pin JM0027836 1/4" x 1 3/8" Roll Pin JM0009896 Tongue Latch Spring JM0001688 Tongue Latch JM0019289 Tongue Hitch Insert JM0019304 Brake Plunger JM0019344 Light Cord Holder JM0001438 1”-8 Gr5 Z Hex Nut JM0002127 3/8"...
- Page 30 13 Ton Running Gear Parts Description Part. No. 21 1/4" x 2" U-Strap JM0027868 22 13 Ton Front Gear Weldment JM0027794 23 13 Ton Coupling Pole JM0027819 24 3/4"-10 x 6.0 Gr5 Z Hex Bolt JM0016683 25 Grease Seal JM0027911 26 Inner Large Cone Bearing JM0027906 27 Inner Large Bearing Cup...
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