Ventrac MJ840 Operator's Manual & Parts Drawings
  1. Manuals
  2. Brands
  3. Ventrac Manuals
  4. Lawn Mower
  5. MJ840
  6. Operator's manual & parts drawings

Ventrac MJ840 Operator's Manual & Parts Drawings

Contour mower
Hide thumbs Also See for MJ840:
Table of Contents

Advertisement

Quick Links

Operator's Manual
& Parts Drawings
MJ840
Contour Mower
VENTRAC.COM
Revised 11/21/18
Original Operator's Manual
09.10055 Rev. 13

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MJ840 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Ventrac MJ840

Summary of Contents for Ventrac MJ840

  • Page 1 Operator’s Manual & Parts Drawings MJ840 Contour Mower VENTRAC.COM Revised 11/21/18 Original Operator’s Manual 09.10055 Rev. 13...
  • Page 2 To the Owner Contact Information and Product Identification If you need to contact an authorized Ventrac dealer for information on servicing your product, always provide the product model and serial numbers. Please fill in the following information for future reference. See the picture(s) below to find the location of the identification numbers.

  • Page 3: Table Of Contents

    Operating On Slopes ..........................11 Roadway Safety ........................... 11 Truck Or Trailer Transport ........................11 Maintenance ............................12 Fuel Safety ............................12 Hydraulic Safety ...........................13 MJ840 Safety Procedures ........................14 Cutting Unit Safety ..........................14 OPERATIONAL CONTROLS PAGE 15 Deck Pivot Latch ..........................15 Primary S.D.L.A. Control Lever* ......................15 Secondary S.D.L.A.
  • Page 4 TABLE OF CONTENTS SERVICE PAGE 18 Cleaning and General Maintenance.....................18 Deck Flip-Up Procedure (Service Position) ..................18 Mower Blade Inspection/Replacement ....................18 Mower Blade Sharpening ........................18 Drive Belt Inspection/Replacement ......................18 Drive Belt Tensioning Adjustments .......................19 Tire Pressure ............................19 Storage ..............................19 Lubrication ............................20 Gearbox ...............................20 Deck Leveling Procedure ........................21 Maintenance Schedule .........................23...

  • Page 5: Introduction

    70.8087 Product Description The MJ840 is designed for the sole purpose of finish mowing. The MJ840 features an 83” (211 cm) cut- ting width with full rear rollers for even cutting and striping, rear discharge, and a flip-up deck design.

  • Page 6: Using Your Manual

    Manual Glossary Power Unit A Ventrac tractor or other Ventrac engine powered device that may be operated by itself or with an attachment or accessory. Attachment A piece of Ventrac equipment that requires a Power Unit for operation.

  • Page 7: Safety

    SAFETY Safety Decals The following safety decals must be maintained on your MJ840 contour deck. Keep all safety decals legible. Remove all grease dirt, and debris from safety decals and instructional labels. If any decals are faded, illegible, or missing, contact your dealer promptly for replacements.
  • Page 8 SAFETY Decal Description Part Number Quantity Danger, Shield Missing 00.0062 Warning - Moving Part Hazard 00.0101 Danger - Keep Hands & Feet Away 00.0123 Warning, Read Owner’s Manual 00.0217 Warning - General Safety 00.0220 Warning - Pinch Point 00.0218 Warning - Do Not Reach 00.0219 Danger - Thrown Object Hazard 00.0265...

  • Page 9: General Safety Procedures

    SAFETY General Safety Procedures for Ventrac Power Units, Attachments, & Accessories Training Required • The owner of this machine is solely responsible for properly training the operators. • The owner/operator is solely responsible for the operation of this machine and prevention of accidents or injuries occurring to him/her- self, other people, or property.

  • Page 10: Preventing Accidents

    SAFETY General Safety Procedures for Ventrac Power Units, Attachments, & Accessories Operation Safety (continued) • If equipped with a high/low range feature, never shift between high and low range while on a slope. Always move the machine to level ground and engage the parking brake before shifting range.

  • Page 11: Operating On Slopes

    SAFETY General Safety Procedures for Ventrac Power Units, Attachments, & Accessories Operating On Slopes • Slopes can cause loss-of-control and tip-over accidents, which can result in severe injury or death. Be familiar with the emergency parking brake, along with the power unit controls and their functions.

  • Page 12: Maintenance

    • If the power unit, attachment, or accessory requires repairs or adjustments not instructed in the operator’s manual, the power unit, attachment, or accessory must be taken to an authorized Ventrac dealer for service. • Never perform maintenance on the power unit and/or attachment if someone is in the operator’s station.

  • Page 13: Hydraulic Safety

    SAFETY General Safety Procedures for Ventrac Power Units, Attachments, & Accessories Fuel Safety (continued) • Do not overfill fuel tank. Only fill to bottom of fuel neck, do not fill fuel neck full. Overfilling of fuel tank could result in engine flooding, fuel leakage from the tank, and/or damage to the emissions control system.

  • Page 14: Mj840 Safety Procedures

    SAFETY MJ840 Safety Procedures • Attachment hydraulic system may contain stored energy. Before performing maintenance or repairs on the hydraulic system, the attachment’s auxiliary hydraulic hoses must be disconnected from the power unit. Lower the attachment to the ground, shut off power unit engine, move the secondary S.D.L.A. lever left and right to relieve auxiliary hydraulic pressure, and disconnect the auxiliary hydraulic quick couplers.

  • Page 15: Operational Controls

    Primary S.D.L.A. Control Lever* Pull the lever to the left to raise the tractor front hitch and MJ840 mower. Push the lever to the right to lower the tractor front hitch and MJ840 mower. The control lever must be in the float (detent) position during operation of the mower.

  • Page 16: General Operation

    GENERAL OPERATION GENERAL OPERATION Daily Inspection float position. 4. Shut off tractor engine. 5. Move the secondary S.D.L.A. control lever side to side to relieve any pressure in the auxiliary Always set the parking brake, shut off the tractor hoses. Disconnect the hydraulic quick couplers engine, remove the ignition key, and ensure all from the tractor and place on the contour mower moving parts have stopped before checking...

  • Page 17: Cutting Height Adjustment

    2. Determine the desired cutting height. Refer to the decals located on the left and right sides of the MJ840 for the settings required to obtain the desired cutting height. When cutting between 3/4” (19 mm) and 1-1/4” (32 mm), install the anti-scalp rollers in position 1 for best performance.

  • Page 18: Service

    For best results, and to maintain the finish of the Mower Blade Sharpening MJ840, clean or wash the mower to remove accu- Blades should be sharpened and balanced by a pro- mulated clippings, leaves, and dirt when the job is fessional.

  • Page 19: Drive Belt Tensioning Adjustments

    Center Deck Belt (R) Drive Belt Tensioning Adjustments 1. Detach the mower deck from the tractor. Each drive belt of the MJ840 mower is spring 2. Raise the carrier frame shield. loaded to maintain proper belt tension. No adjust- ments are required.

  • Page 20: Lubrication

    SERVICE Lubrication Gearbox The gearbox uses 75W-140 synthetic gear oil. Gear oil level should be maintained at the level of the check port (A) on the rear or side of the gearbox. Always set the parking brake, shut off the tractor engine, remove the ignition key, and ensure all moving parts have stopped before checking mower deck or blade condition, or attempting...

  • Page 21: Deck Leveling Procedure

    SERVICE Deck Leveling Procedure Always set the parking brake, shut off the tractor Mower blades may be sharp. Always wear gloves engine, remove the ignition key, and ensure all when working with mower blades. moving parts have stopped before checking mower deck or blade condition, or attempting any repair or adjustment.
  • Page 22 SERVICE Front to Rear Deck Leveling between the blade tip and the surface the deck is setting on. 1. Place the mower on a hard surface that is clean 11. Rotate the mower blades so the same tip is at the and level.

  • Page 23: Maintenance Schedule

    SERVICE should be level to 1/8” (3.2 mm) low at the front. 21. If the distance is greater than 1/8” (3.2 mm), the deck must be leveled. To begin adjustments, loosen the 4) 3/8” bolts that fasten the front yoke anchor plate to the front of the right deck.

  • Page 24: Maintenance Checklist

    SERVICE Maintenance Checklist Maintenance Checklist Grease & Lubrication: See Lubrication Section Jackshaft Bearing Hitch Arm Pivot Cylinder End Spindle Caster Wheel Pivot Yoke Pivot Rear Roller Bearing ** (Serial # 1001-1875) Wheel Axle Bearing ** Gearbox, Top Bearing Check Gearbox Oil Level Change Gearbox Oil.

  • Page 25: Specifications

    SPECIFICATIONS Dimensions Overall Height ........22 inches (56 cm) Overall Length .

  • Page 26: Parts

    PARTS ILLUSTRATED DRAWING Decks & Connector Links Use only original Ventrac Illustrated Parts - 26 replacement parts.
  • Page 27 2 ..62.1302 ....FRAME, PIVOT YOKE - MJ840 (Serial # 1001-2339) . . .

  • Page 28: Carrier Frame

    PARTS ILLUSTRATED DRAWING Carrier Frame 53.0140 Use only original Ventrac Illustrated Parts - 28 replacement parts.
  • Page 29 1 ..62.1298 ....FRAME, CARRIER MAIN - MJ840 (Serial # 1001-1803) . . .

  • Page 30: Hitch Arms

    PARTS ILLUSTRATED DRAWING Hitch Arms Use only original Ventrac Illustrated Parts - 30 replacement parts.
  • Page 31 28 ..29.GF0001 ....GREASE FTG, 1/4 SAE ST ..........2 Use only original Ventrac Illustrated Parts - 31 replacement parts.

  • Page 32: Drive Shaft & Gearbox

    PARTS ILLUSTRATED DRAWING Drive Shaft & Gearbox 87.0221 Use only original Ventrac Illustrated Parts - 32 replacement parts.
  • Page 33 57 ..89.0099 ....KIT, SEAL & GASKET FOR 87.0221 ......... . 1 ^ When replacing gaskets, measure the thickness of the gasket stack that was removed from the gearbox and replace with a stack of equal thickness. Use only original Ventrac Illustrated Parts - 33 replacement parts.

  • Page 34: Deck Belts (Serial # 1001-1447)

    PARTS ILLUSTRATED DRAWING Deck Belts (Serial # 1001-1447) Use only original Ventrac Illustrated Parts - 34 replacement parts.
  • Page 35 27 ..90.0618 ....BOLT, 3/8-16 USS X 2 1/4 ........... 1 Use only original Ventrac Illustrated Parts - 35 replacement parts.

  • Page 36: Deck Belts (Serial # 1448-)

    PARTS ILLUSTRATED DRAWING Deck Belts (Serial # 1448-) Use only original Ventrac Illustrated Parts - 36 replacement parts.
  • Page 37 27 ..60.1056 ....COVER, PULLEY ............8 Use only original Ventrac Illustrated Parts - 37 replacement parts.

  • Page 38: Spindles

    PARTS ILLUSTRATED DRAWING Spindles 10 10 87.0229 87.0230 Use only original Ventrac Illustrated Parts - 38 replacement parts.
  • Page 39 48 ..29.GF0017 ....FITTING, RELIEF ............1 Use only original Ventrac Illustrated Parts - 39 replacement parts.

  • Page 40: Shields

    PARTS ILLUSTRATED DRAWING Shields Use only original Ventrac Illustrated Parts - 40 replacement parts.
  • Page 41 34 ..96.04 ..... .WASHER, LOCK 1/4 ............4 Use only original Ventrac Illustrated Parts - 41 replacement parts.

  • Page 42: Front Anti-Scalp Rollers

    PARTS ILLUSTRATED DRAWING Front Anti-Scalp Rollers 70.8152 Replacement for 50.0178 Roller Serial # 1001-1875 Serial # 1876- 53.0161 Use only original Ventrac Illustrated Parts - 42 replacement parts.
  • Page 43 38 ..99.A08N ....LOCKNUT, NYLON 1/2-13 USS ..........1 Use only original Ventrac Illustrated Parts - 43 replacement parts.

  • Page 44: Rear Rollers

    PARTS ILLUSTRATED DRAWING Rear Rollers 70.8138 80.0383 Use only original Ventrac Illustrated Parts - 44 replacement parts.
  • Page 45 6 ..70.8138 ....KIT, ROLLER ASSEMBLY MJ840 (Serial # 1001-1871) ..

  • Page 46: Discharge Deflectors & Rear Belting

    PARTS ILLUSTRATED DRAWING Discharge Deflectors & Rear Belting Use only original Ventrac Illustrated Parts - 46 replacement parts.
  • Page 47 11 ..99.SF0406 ....BOLT, SRF 1/4-20 X 3/4 (Serial # 2340-) ........3 Use only original Ventrac Illustrated Parts - 47 replacement parts.

  • Page 48: Deck Wing Lift Arms

    PARTS ILLUSTRATED DRAWING Deck Wing Lift Arms Use only original Ventrac Illustrated Parts - 48 replacement parts.
  • Page 49 21 ..64.1658 ....LIMITER, DECK HINGE LOWER R (Serial # 1222-) ......1 Use only original Ventrac Illustrated Parts - 49 replacement parts.

  • Page 50: Deck Wing Lift Arm Hydraulics

    PARTS ILLUSTRATED DRAWING Deck Wing Lift Arm Hydraulics Serial # 1001-1803 Use only original Ventrac Illustrated Parts - 50 replacement parts.
  • Page 51 26 ..99.A05 .....LOCKNUT, STOVER 5/16-18 USS ......... . . 2 Use only original Ventrac Illustrated Parts - 51 replacement parts.

  • Page 52: 70.8087 Mulching Kit

    PARTS ILLUSTRATED DRAWING 70.8087 Mulching Kit Use only original Ventrac Illustrated Parts - 52 replacement parts.
  • Page 53 9 ..99.SF0504 ....BOLT, SRF 5/16-18USS X 1/2 ..........2 Use only original Ventrac Illustrated Parts - 53 replacement parts.

  • Page 54: Warranty

    4000 Series Tractors & Attachments 2-year All Ventrac add-on kits and accessories such as: 3-point hitch, 12V front & rear power outlets, foot pedal, dual wheel kit, etc., will be covered under the above warranty periods provided they are installed by an Authorized Ventrac Dealer.
  • Page 55 (i) expenses relating to gasoline, oil, lubricants; (ii) loss, cost or expense relating to transportation or delivery of turf equipment from the location of owner or location where used by owner to or from any Authorized Ventrac Dealer; (iii) travel time, overtime, after hours’ time or other extraordinary repair charges or charge relating to repairs or replacements outside of normal business hours at the place of business of an Authorized Ventrac Dealer;...

Table of Contents

Save PDF