This document is an owner's manual for BERCOMAC Subframe and Drive Mechanism kits, specifically designed for various John Deere lawn and garden tractor models, including the 115, 125, 135, 145, 155C, 190C, L110, L111, L118, L120, L130, LA, and D series. The manual covers the installation, operation, maintenance, and repair of these accessories, emphasizing safety precautions and proper usage.
Function Description:
The BERCOMAC Subframe (Model Number 700339-6) and Drive Mechanism (Model Number 700329-5 / -6) are accessories designed to facilitate the attachment and operation of various front-mounted implements on compatible John Deere tractors. The subframe provides the structural support and mounting points for these attachments, while the drive mechanism transmits power from the tractor's engine to operate the accessories. This system allows a single tractor to be used with multiple seasonal attachments, such as snowblowers, rotary brooms, utility blades, and rotary tillers, enhancing the versatility of the equipment. The manual details the assembly process for both the subframe and the drive mechanism, ensuring proper integration with the tractor.
Important Technical Specifications:
The manual provides torque specification tables for both imperial (foot-pounds and Newton-meters) and metric (foot-pounds and Newton-meters) bolts, categorized by bolt size and grade. This is crucial for ensuring that all fasteners are tightened correctly to prevent damage or failure.
- Imperial Bolt Torque Specifications:
- 1/4" (6.35mm): Grade 2 (5-6 ft-lbs), Grade 5 (9-11 ft-lbs), Grade 8 (12-15 ft-lbs)
- 5/16" (7.94mm): Grade 2 (10-12 ft-lbs), Grade 5 (17-20.5 ft-lbs), Grade 8 (24-29 ft-lbs)
- 3/8" (9.53mm): Grade 2 (20-23 ft-lbs), Grade 5 (35-42 ft-lbs), Grade 8 (45-54 ft-lbs)
- 7/16" (11.11mm): Grade 2 (30-35 ft-lbs), Grade 5 (54-64 ft-lbs), Grade 8 (70-84 ft-lbs)
- 1/2" (12.7mm): Grade 2 (45-52 ft-lbs), Grade 5 (80-96 ft-lbs), Grade 8 (110-132 ft-lbs)
- 9/16" (14.29mm): Grade 2 (65-75 ft-lbs), Grade 5 (110-132 ft-lbs), Grade 8 (160-192 ft-lbs)
- 5/8" (15.88mm): Grade 2 (95-105 ft-lbs), Grade 5 (150-180 ft-lbs), Grade 8 (220-264 ft-lbs)
- 3/4" (19.05mm): Grade 2 (150-185 ft-lbs), Grade 5 (270-324 ft-lbs), Grade 8 (380-456 ft-lbs)
- 7/8" (22.23mm): Grade 2 (160-200 ft-lbs), Grade 5 (400-480 ft-lbs), Grade 8 (600-720 ft-lbs)
- 1" (25.4mm): Grade 2 (250-300 ft-lbs), Grade 5 (580-696 ft-lbs), Grade 8 (900-1080 ft-lbs)
- Metric Bolt Torque Specifications (Coarse Thread):
- M6 (1.00mm pitch): Grade 4T (3.6-5.8 ft-lbs), Grade 7T (5.8-9.4 ft-lbs), Grade 8T (7.2-10 ft-lbs)
- M8 (1.25mm pitch): Grade 4T (7.2-14 ft-lbs), Grade 7T (17-22 ft-lbs), Grade 8T (20-26 ft-lbs)
- M10 (1.50mm pitch): Grade 4T (20-25 ft-lbs), Grade 7T (34-40 ft-lbs), Grade 8T (38-46 ft-lbs)
- M12 (1.75mm pitch): Grade 4T (28-34 ft-lbs), Grade 7T (51-59 ft-lbs), Grade 8T (57-66 ft-lbs)
- M14 (2.00mm pitch): Grade 4T (49-56 ft-lbs), Grade 7T (81-93 ft-lbs), Grade 8T (96-109 ft-lbs)
- M16 (2.00mm pitch): Grade 4T (67-77 ft-lbs), Grade 7T (116-130 ft-lbs), Grade 8T (129-145 ft-lbs)
- M18 (2.00mm pitch): Grade 4T (88-100 ft-lbs), Grade 7T (150-168 ft-lbs), Grade 8T (175-194 ft-lbs)
- M20 (2.50mm pitch): Grade 4T (108-130 ft-lbs), Grade 7T (186-205 ft-lbs), Grade 8T (213-249 ft-lbs)
- Metric Bolt Torque Specifications (Fine Thread):
- M8 (1.00mm pitch): Grade 4T (12-17 ft-lbs), Grade 7T (19-27 ft-lbs), Grade 8T (22-31 ft-lbs)
- M10 (1.25mm pitch): Grade 4T (20-29 ft-lbs), Grade 7T (35-47 ft-lbs), Grade 8T (40-52 ft-lbs)
- M12 (1.25mm pitch): Grade 4T (31-41 ft-lbs), Grade 7T (56-68 ft-lbs), Grade 8T (62-75 ft-lbs)
- M14 (1.50mm pitch): Grade 4T (52-64 ft-lbs), Grade 7T (90-106 ft-lbs), Grade 8T (107-124 ft-lbs)
- M16 (1.50mm pitch): Grade 4T (69-83 ft-lbs), Grade 7T (120-138 ft-lbs), Grade 8T (140-158 ft-lbs)
- M18 (1.50mm pitch): Grade 4T (100-117 ft-lbs), Grade 7T (177-199 ft-lbs), Grade 8T (202-231 ft-lbs)
- M20 (1.50mm pitch): Grade 4T (132-150 ft-lbs), Grade 7T (206-242 ft-lbs), Grade 8T (246-289 ft-lbs)
The manual also includes detailed parts breakdowns and lists for both the subframe (700339-6) and two versions of the drive mechanism (700329-5 and 700329-6), with English descriptions, French descriptions, quantity, and part numbers. Key components include various supports, pins, bushings, bolts, nuts, springs, belts, pulleys, and bearings.
Usage Features:
The BERCOMAC Subframe and Drive Mechanism are designed for ease of installation and operation, though they require careful adherence to the provided instructions.
- Compatibility: Specifically designed for John Deere 115, 125, 135, 145, 155C, 190C, L110, L111, L118, L120, L130, LA & D series tractors.
- Versatility: Enables the use of multiple attachments, including:
- Rotary Tiller #700312 (14 to 25 HP tractors, rear-mounted with drive & manual lift mechanisms)
- Utility Blade #700266 (mounts on the same subframe as snowblower & rotary broom)
- Snowblower #700255 40" (fits on the same subframe as rotary broom and utility blade)
- Rotary Broom #700380 (nylon brush) / #700381 (polypropylene brush) (fits on the same subframe, requires an adaptor)
- Tractor Winter Cab #700271 34" / #700423 40" (universal type)
- Installation: The subframe can be installed with or without the mower deck, but the mower deck must be removed for drive mechanism installation. Specific instructions are given for tractors with manual and electric clutches. Reflectors are to be installed on the tractor's fender for safety.
- Adjustability: The pivot support installation varies based on front tire size (15 x 6-6 uses top holes, 16 x 6.5-8 uses bottom holes). The drive mechanism includes an adjustment rod for belt tension.
- Safety: The manual stresses the importance of reading and following all safety rules, including avoiding contact with rotating parts, exercising caution on slopes and gravel, inspecting for damage after striking objects, and ensuring all moving parts stop when the clutch is disengaged. It also advises on proper fuel handling and wearing appropriate safety equipment.
Maintenance Features:
Regular maintenance is crucial for the longevity and safe operation of the BERCOMAC Subframe and Drive Mechanism.
- Regular Checks:
- Check mounting bolts frequently for proper tightness.
- Apply oil at all pivot points.
- Inspect and replace all defective parts as necessary.
- Belt Maintenance:
- Instructions are provided for belt replacement, emphasizing careful observation of belt guide installation to prevent damage.
- Ensure the belt guide does not touch the belt when tightened.
- For manual clutch systems, verify that the snowblower or broom stops immediately when the clutch is disengaged and that the belt does not touch belt guides when engaged (with the motor off).
- Tire Pressure: Verify that tire pressure is even on both sides of the tractor, according to the vehicle's owner's manual.
- End of Season Storage:
- Clean and paint all worn parts.
- Apply oil at all pivot points.
- Inspect and replace defective parts.
- For winter accessories, run the engine for a few minutes after clearing snow to prevent freezing of rotary parts.
- Refer to the owner's manual for prolonged storage of the accessory and vehicle.
- Warranty: BERCOMAC offers a limited warranty, covering defects in material and workmanship for 1 year (residential use) or 90 days (semi-commercial/professional/rental use). Exceptions include tire chains (90 days) and engines (manufacturer's warranty). The warranty does not cover normal wear and tear, improper installation or maintenance, or damages from lack of shear bolt breakage. All warranty work must be performed by an authorized dealer using original replacement parts.
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