OPERATOR’S MANUAL Set-Up Instructions and Parts Catalog for Model 2494ST Running Gear 24 Ton Capacity Short Turn Design Four-Wheel Hydraulic Drum Brakes J. & M. Manufacturing Co., Inc. P.O. Box 547 Fort Recovery, OH 45846 Phone: (419) 375 2376 Fax: (419) 375-2708 E-mail: sales@jm-inc.com Website: www.jm-inc.com REV-08-20-09 Pg.
TO THE DEALER: Read manual instructions and safety rules. Make sure all items on the Dealer’s Pre-Delivery and Delivery Check Lists in the Operator’s Manual are completed before releasing equipment to the owner. The dealer must complete the Warranty Registration Card attached to the front inside cover of this manual and return to J. & M. Mfg. Co., Inc. at the address indicated on the card. Warranty claims will be denied if the Warranty Registration Card has not been completed and returned.
MODEL 2494ST - 24 TON RUNNING GEAR Specifications Capacity Weight (with tires) Width (c/c of tires) Spindle Size Spring Balance Tongue Ground Height (to top of axle) Rocking Bolster Tongue, Adj. Quick Hitch Adjustable Center Pole Pull Through Rear Hitch Hydraulic Brake System Wheels – 10 Bolt 24 Ton 2,800 lbs. 92” 3 3/8” diameter (sleeved) Dual Spring 26” Built-In Rear Standard Standard Standard Four Wheel Drum 22.
GENERAL INFORMATION (continued) BOLT TORQUE CHART Always tighten hardware to these values unless a different torque or tightening procedure is listed for a 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. hardware. SAE for SAE hardware and Metric for metric Make sure fastener threads are clean and you start the thread engagement properly.
TABLE OF CONTENTS INTRODUCTION 2 EXPRESS WARRANTY 2 SPECIFICATIONS 3 GENERAL INFORMATION 3 BOLT TORQUE CHART 4 SAFETY RULES 6 SAFETY SIGNS 7 SET-UP INSTRUCTIONS 7-8 OPERATING INSTRUCTIONS / MAINTENANCE 9-10 PARTS LIST / DIAGRAM 11 OPTIONAL HYDRAULIC DRUM BRAKES 12-13 OPTIONAL FENDER KIT 14 SERVICE RECORDS 15 Pg.
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.
SAFETY SIGNS IMPORTANT: Install new safety signs if the old signs are destroyed, lost, painted over or cannot be read. When parts are replaced that have safety signs, make sure you install a new sign with each new part. New signs are available from the manufacturer or your authorized dealer.
SET-UP INSTRUCTIONS (continued) IMPORTANT: Set-up work to be performed by qualified servicemen only. 6. Adding Brake Fluid to the Master Cylinder. IMPORTANT: Do NOT shake the brake fluid container. AVOID agitating the system when bleeding. Do NOT “pump” the brake plunger. Instead, depress and release slowly. Fill the master cylinder carefully, pouring the fluid down the side of the reservoir to minimize air entrainment. METHOD ONE (requires two people) Close all bleed screws.
OPERATION INSTRUCTIONS / /MAINTENANCE WARNING - BE CERTAIN THAT ALL POWER IS SHUT OFF BEFORE SERVICING EQUIPMENT. Before equipment is put into service: Has this manual and the operator’s manual of the gravity box been read and clearly understood by the operator(s) of this machine? Have all braces, bolts, nuts, lug bolts and lug nuts been checked to ensure that they are properly fastened? Is the running gear properly fastened to the tractor? Use a good quality hitch pin with clip and safety chains.
OPERATION INSTRUCTIONS / /MAINTENANCE (continued) IMPORTANT: Keep the tires properly inflated (approx. 80 psi). Both under 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. Inspect tie rods and replace the bronze bushings in the steering assembly when needed. Repack the bearings in the hub assemblies once a year or as needed.
MODEL 2494ST RUNNING GEAR REPAIR PARTS LIST Tongue Assembly Parts List (See Page 12) PARTS LIST # Part # Description # Part # Description 10 HB-24 King Pin Hitch Bolt 1 3/4” x 10 1/2” 23 SS-33816 3 3/8” x 16” Straight Spindle 24 MB-1634 1” x 6 3/4” Bolt 11 HW-24 Hitch Weldment 25 1LN 1” Lock Nut 12 BB-78 7/8” ID Bronze Bushing 26 TS-615H Large Tongue Spring 13 SB-78 7/8” Step Bolt with Nut 27 CP-24ST Coupling Pole with Rear Hitch 14L TRE-114L Tie Rod End, Left 28 212314
MODEL 2494ST RUNNING GEAR REPAIR PARTS LIST FOR HYDRAULIC DRUM BRAKES Tongue Assembly and Brake Lines and Fittings PARTS LIST # Part # Description # Part # Description Outer Tongue Weldment 21 PRE-1 Plunger Rod End 22 MBMC-DR2 Mounting Bracket (2 pcs) (M/C) 23 38-FN 3/8” Flange Nut 1 OTW-24ST 2 ITW-1324 Inner Tongue Weldment 3 TL-1324 Tongue Latch 4 SS-615NS Small Spring In Latch 24 38-LN 3/8” Lock Nut 5 17G2B 1” x 7” Grade 2 Bolt 25 PP-1DST Plunger Pole 6 1LN 1” Lock N
MODEL 2494ST RUNNING GEAR REPAIR PARTS LIST FOR HYDRAULIC DRUM BRAKES Drum Brake Assembly PARTS LIST # Part # 1 24737 Description # Part # Description Back Plate Assembly 21 17406 Hex – Locknut 5/16” NC 2 9739 Front Brake Shoe Assembly 28 9743 Travel Link 3 9745 Front Shoe Lever 29 7949 4 9775 Rear Shoe Lever Travel Link Bolt – Hex Cap Screw 5/16” NC x 5/8” 5 9776 Wheel Cylinder Assembly – Right 30 12560 Front Shoe Pin w/o Park Link 6 9777 Wheel Cylinder Assembly – Left 31
OPTIONAL FENDER KIT NOTE: The running gear wheels and tires have been removed for illustration purposes only. When mounting the Fender Kit, the tires should be mounted to the running gear. Installation Instructions Step One – Loosely fasten each set of front and rear Fender Brackets to the mounting plate located on the front and rear spindle assemblies using four 1/2” x 2 1/2” grade 5 bolts, eight 1/2” regular washers and four 1/2” flange nuts. Do Not Tighten the brackets.
SERVICE / MAINTENANCE RECORD Date Description Notes Pg.
