Struck MAGNATRAC MH8000 Operator's Manual
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Struck MAGNATRAC MH8000 Operator's Manual

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Copyright 2012 C. F. Struck Corp. All rights reserved.
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MH8000
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OMPACT
C
RAWLER
Version 8.12
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  • Page 1 & MH8000 OMPACT RAWLER " # $!# !#" # %# Copyright 2012 C. F. Struck Corp. All rights reserved. Version 8.12...
  • Page 2 ********* SERVICE BULLETIN ********* C. F. STRUCK CORPORATION Cedarburg, Wisconsin 53012 Dear Magnatrac Owner: Working with thousands of customers over the last 45 years, I’ve gained some tips that I would like to share with you to make your Magnatrac experience as safe and rewarding as possible.
  • Page 3 #1 - PERIODIC MAINTENANCE: Though periodic maintenance is well covered in the Operator’s Manual, it seems that some opera- tors have let some points “slide” and have suffered expensive repairs. In the hopes of saving you from premature failure in the future, due to forgotten maintenance, the following points are brought to your attention! 1) The #4004 Bushings (steel) which restrain the #4003 Torque Arms mounted to the #524 Track Drive Motors must be replaced before they wear through and damage their mating Motor Box...
  • Page 4 First, slowly release the Track Controls so that they may go to neutral and provide a dynamic braking action. Again, it must be emphasized that you must operate your Track Controls slowly. Remember, you are controlling tons of force, and though significant overload strength has been built into the Controls, you still can do serious damage to your tractor’s hydraulic drive by “snapping”...
  • Page 5 In the event of defective materials or workmanship the purchaser agrees to allow C.F. Struck Corp the opportu- nity to correct the defect in a timely manner at the expense of C.F. Struck Corp. It is at the discretion of C.F.

  • Page 6: Table Of Contents

    PAGES! TABLE OF CONTENTS 1- TO THE OPERATOR ..............1 Recognize Safety Information .

  • Page 7: 1- To The Operator

    RECOGNIZE SAFETY please contact the factory by any of the following means. INFORMATION Mail: C. F. STRUCK CORPORATION This is the safety-alert symbol. When you W51 N545 STRUCK LANE see this symbol on your Crawler or in this CEDARBURG, WI 53012 manual, be alert to the potential for personal injury.

  • Page 8: Service Records

    SERVICE & MAINTENANCE RECORDS Date Service Work Date Service Work ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________ ________ _____________________________________________...

  • Page 9: 2- Safety Rules

    2- SAFETY RULES OPERATION SAFETY • When you operate the Crawler, do not allow Reports on accidents show that careless use of anyone to ride on the Crawler or its machinery causes a high percentage of accidents. equipment. You can avoid many accidents by following the •...

  • Page 10: Service Safety

    finished, connect battery’s “ground” terminal ( • When the Crawler is operating, only the - ) last. operator should be on it. • When driving connecting pins, wear goggles • If it is necessary to make checks with the or safety glasses. Engine running, always use two people...the •...

  • Page 11: Protection From Noise

    INSTALL AND MAINTAIN ROPS • Never use an open flame to look for leaks PROPERLY anywhere on the equipment. Roll-Over • Never use an open flame as light anywhere on P r o t e c t i v e or around the equipment.

  • Page 12: 3- Controls And Instruments

    3- CONTROLS INSTRUMENTS Learn the location and purpose of all controls, instruments, and warning labels. IGNITION SWITCH CONTROLS (K) OVERDRIVE/ACCESSORY CONTROL PARKING/EMERGENCY BRAKE FAN SWITCH (B) LEFT TRACK CONTROL (M) HOUR METER (C) RIGHT TRACK CONTROL (N) HYDRAULIC OIL TEMPERATURE (D) BRAKE LOCK/RELEASE HANDLE (O) AMMETER CHOKE CONTROL...
  • Page 13 MH8000 Controls & Instruments (A) PARKING/EMERGENCY BRAKE 4) To turn left, push forward on Right Track Control. Apply Brake by pushing forward on its pedal with left foot. 5) To counter-rotate Tracks (shortest turn possible), push one Track Control forward To lock brake lift up on Brake while simultaneously pulling rearward on Lock/Release handle while Pedal (A) is...
  • Page 14 (D) BRAKE LOCK HANDLE (J) IGNITION SWITCH To release Brake, apply foot pressure to Brake Switch is activated by rotating key Pedal (A) and lower Brake Lock Handle (D); clockwise. Turning it fully clockwise slowly release foot pressure and allow Brake will engage Engine starter ...
  • Page 15 (L) FAN SWITCH Your Magnatrac HM 8000 (P) HYDRAULIC CIRCUIT CONTROL comes equipped with The Hydraulic Circuit Control distributes flow automotive type fan attached to its to the HC74 Hydraulic Circuit kit. This flow is external oil cooler. Turn fan on by utilized for the PTO70 Power Takeoff option as pulling switch to help reduce PULL OUT...

  • Page 16: 4- Operation

    4- OPERATION BATTERY COMPARTMENT Remove trash. PRE-STARTING INSPECTION Check cables for tightness and corrosion. Before you start your Crawler for the first time each day, perform the following checks: FUEL TANK ENGINE COMPARTMENT Check fuel level. Check oil level. Check air intake system. HYDRAULIC SYSTEM Check fuel filter.

  • Page 17: Prepare For Engine Starting

    PREPARE FOR ENGINE STARTING shut off starter immediately. Do not make further attempts to start the Engine until the condition is 1) Fasten Seat Belt (only if you have ROPS corrected. installed). If the battery charge is not sufficient to turn 2) Allow Left (B) and Right (C) Track Controls to over the engine, recharge the battery.

  • Page 18: Parking Crawler

    B) To move straight to the rear, simultaneously CAUTION: When you park your Crawler pull both Right and Left Track Controls on a slope, put blocks against tracks. rearward. not park Crawler with tracks pointed downhill. C) To turn to the right, push Left Track Control forward.

  • Page 19: 5- Fuels And Lubricants

    5- FUELS and LUBRICANTS FUELS FUEL SPECIFICATIONS LUBRICANTS Check enclosed Engine Owner’s Manual and closely follow their recommendations. ENGINE OIL Check enclosed Engine Owner’s Manual and closely follow their recommendations. FILLING FUEL TANK HYDRAULIC OIL The Fuel Tank is located to the right of the operator’s seat.

  • Page 20: 6- Lubrication And Periodic Service

    6- LUBRICATION and A small breakdown of how many grease PERIODIC SERVICE fittings are on each MH8000 tractor and various Attachments is as follows. HOUR METER MH8000: For an MH8000, all grease fittings will be Use the Hour Meter (M) to determine when periodic services are required.
  • Page 21 EVERY FIFTY HOURS EVERY 200 HOURS EVERY FIFTY HOURS EVERY 200 HOURS Engine Oil - Drain and refill per recommendations Hydraulic Fluid - Completely drain system by in Engine Owner’s Manual. removing plug in left rear corner on NOTE: Change Engine oil every 25 hours underside of Crawler’s Upper Frame.

  • Page 22: 7- Service

    7- SERVICE 3. Get medical attention immediately. INTERNAL 1. Drink a large amount of water or milk. ENGINE 2. Then drink milk of magnesia, beaten Your Crawler comes with a complete Engine eggs, or vegetable oil. Service Manual. Additional service or owner’s manuals for the engine can be found on the Web 3.

  • Page 23: 000441 Interlock Switches

    #441 INTERLOCK SWITCHES restraining Cap Screws, the Switch should be open; the light should be off! Two #441 Switches are used in the Crawler’s If both of the above conditions are not met, electrical system as safety devices to detect if the you must adjust the height of the #441 Seat operator is properly seated and that the Parking Switch.

  • Page 24: Safety Circuit Test

    Bar, the #441 Brake Switch should be open (the high in its Bracket and is closing too soon. If #440 Leaf Spring would have rotated up and readjustment doesn’t solve the problem, test #441 away); the light of the continuity tester should now Switch and replace if necessary.

  • Page 25: Drive Chain Tensioning

    Reference Photo for DRIVE CHAIN TENSIONING 4002 (#4007 & #1090 Chains page 21) To Tighten #4007 Chain, you must move Loosen Three (3) 3/8” Carriage #223 Shaft up to remove slack in Chain: Bolts on left & right side of #4001 Motor Box...
  • Page 26 Reference Photo for DRIVE CHAIN TENSIONING (#4007 & #1090 Chains page 21) 4002 4007 Loosen Three (3) 3/8” Carriage Bolts on left & right side of #4001 Motor Box... tighten securely after Only If Necessary: your Chain adjustment. Loosen two 1/2” Cap Screws holding front end of #4001 Motor Box...
  • Page 27 DRIVE CHAIN TENSIONING Tighten #1090 Drive Chain (#80 roller chain) by increasing the center distance between the (#4007 & 1090 Chains) movable #214 Rear Axle and the fixed #436 Shaft...do this to both sides of Crawler. Tighten #4007 Drive Chain (#60 roller chain) by increasing the center distance between the Consult the two “reference photos”...

  • Page 28: Parking/Emergency Brake

    Engine. If the operator inadvertently touches the Add additional #232 Shims to the existing Track Drive Controls during Engine starting, the pack of #232 Shims mounted above each #1211 Brake will severely load the drive system and Axle Support on each end of #214 Rear Axle. Add potentially kill the Engine (unless the Track Drive Shims until the #1090 Drive Chain is tight...you Controls are released immediately).

  • Page 29: Track Maintenance

    DANGER: The proper adjustment and TRACK MAINTENANCE maintenance of your Disk Brakes can not Before attempting to complete any of the three be overemphasized! Double check your parts of this Track Maintenance section, it is work for safety. Always call our Service recommended that you read all three parts Department with any doubts or questions you completely to provide background on how the total...
  • Page 30 CAUTION: When blocking Crawler, do not put blocks under either Sprocket of either #1219 Rear Drive “assembly”! NOTE: As you work with the Tracks, realize that the more you can support the “lower strand” of each Track and keep it flat and close to the #1218 Idler Wheels (4.5”...

  • Page 31: Sprocket & Idler Lubrication

    With all the #1229 Track Rods removed from the Front Idler, continue rotating the Track rearward and in a similar manner as above, install the Track Rods between alternate mating teeth of the Rear Drive’s Inner & Outer Sprockets...keep Rods evenly centered over their respective Inner &...
  • Page 32 the 1/2” Nut & #235 Washer (on each Rod’s end) against its respective #233 or #234 spring. A set of pneumatic air tools will greatly aid in this process! The original factory measurement of the (black, outside) #234 Spring is 4.5 inches. The inside spring #233, will NOT be the same measurement.
  • Page 33 Drive your Crawler through a “clean” area to Shut off the engine and dismount. Check the work out debris that may have lodged between overall length of your #233 & #234 Springs for any Track Sprocket teeth or in the Track’s Chain Links. changes in length.

  • Page 34: Track Shoes

    #213 Idler Axles and the two #214 Rear Axles and NON-MARKING SHOE KIT. Under average soil are lubricated from the sides of the Crawler (See conditions, the addition of Non-Marking Shoes to Part Drawing MH-B). your Track will increase traction to approximately 80% of your Crawler’s tractive ability.

  • Page 35: Belt Tensioning & Replacement (Mh7000 Only)

    BELT TENSIONING & REPLACEMENT PROCEDURE The #1361 Belt drives the MH8000’s attachment pump. Over time the belt will wear and/or stretch, which will result in decreased power to the attachments and/or a squealing noise under high loads to the attachments. Applying belt dressing using the manufacturer’s instructions will help with squealing also.

  • Page 36: 9- Operating Tips & Procedures

    8 - TROUBLESHOOTING filter and fuel line by the tank. Check to make sure the fuel line and/or tank is not clogged with any debris. Check hoses leading to the fuel pump and to the Below are tips and guidelines for carburetor.
  • Page 37 Track tensioning adjustment has reached its noises. Check for stuck items in the track limit, but tracks are still loose. chain like rocks or other debris. • It is possible to remove links from the track • Verify the track tension on the front idler chain to shorten the track loop.
  • Page 38 Tracks came off. No power to your backhoe. • Do NOT proceed operating the crawler. • Make sure the accessory lever is pulled Lower all attachments and apply the parking back to provide power to the backhoe. brake. Inspect the area for causes. See the Check front #1361 Pump Belt.
  • Page 39 Chapter 9 SAFETY & WORK PROCEDURES for Compact Crawlers The following material is designed to familiarize you with the basic characteristics of a compact Crawler Tractor (tracked Vehicle). Its purpose is to teach you how a crawler tractor responds in comparison to the more familiar wheeled tractors.
  • Page 40 A tracked Vehicle, by its very nature, requires the use of operating techniques and procedures that are SAFETY WARNING: ANYTIME A PORTION OF unfamiliar to most people used to driving wheeled THE TRACK IS NOT IN CONTACT WITH THE vehicles. GROUND, STABILITY IS REDUCED.
  • Page 41 TRACKED VEHICLE OPERATION Variations in speed, loading, terrain and vehicle condition must all be analyzed to determine whether or not a A Tracked Vehicle, by its very nature, is a vehicle specific obstacle can be traversed. If in doubt, do not requiring a great degree of care and judgment during attempt.
  • Page 42 DOWNHILL OPERATION SAFETY WANING: OBSTACLES, SOME OF WHICH MIGHT BE DRIVEN OVER SAFELY SUDDEN STOPS WHILE ON LEVEL TERRAIN, CAN CAUSE A If a Tracked Vehicle is driven down a slope and the HAZARD WHILE OPERATING ON SLOPES. tracks are stopped suddenly, the vehicle’s exceptional traction may cause it to tip over forward.
  • Page 43 many other variables are the steepness of the slopes, OPERATING SAFETY PRECAUTIONS size of the obstacle causing the drop, the shape of the 1. Keep hands and feet inside vehicle. last point of support, the load on the Tracked Vehicle, 2.
  • Page 44 LOADER OPERATION With the bucket level, start a cut at the notch approximately 2 inches (50.8 mm) deep. Hold the depth Suggested operating techniques for loader operation by feathering the bucket to adjust the cutting lip up or are outlined in this section. Practice the lever movements down.
  • Page 45 OPERATING WITH FLOAT CONTROL DUMPING THE BUCKET During hard surface operation, place the control lever Lift the bucket high enough to clear the side of the in “float” (held by the detent), and keep the bucket level. vehicle. Move unit in as close to the side of the vehicle This will permit the bucket to “Float”...
  • Page 46 Leave soil that drifts over the side of the bucket for LOADING FROM A STOCKPILE final cleanup. Initially approach the stockpile with the bucket One lengthwise cleanup p[ass will usually leave the approximately to feet (609.6 mm) off of the ground. backfill at an acceptable grade.
  • Page 47 Always keep the truck close to the operation and If the pile sides are too high and are likely to cave in, keep cutting depth half the length of the truck bed. use the loader to break them down. Backgrade with the bucket occasionally, and approach the bank with the bucket flat.
  • Page 48 BULLDOZING DOZER DITCHING A dozer and blade can dig wide, shallow ditches effectively as shown in the following illustrations. When DOZER EXCAVATION the limits for side excavation are reached (A)... When dozing out a pit with a blade or bucket, make cross cuts working from South to North in overlapping swaths.
  • Page 49 SIDE HILL CUTS 2. Working from Side (only) Always start or pioneer all side hill cuts from the top A short, wide shelf may also be cut in a hillside, of hills and then work your way down with the cut. It may working from the side only as illustrated below.
  • Page 50 EARTH MOVING BACKFILLING When stripping soil from a road or driveway, either Angling blade bulldozers are excellent for backfilling push it forward and angle it to the side (A) or push it ditches as they can drift material into the trench while forward, then perpendicularly push it to the side (B).
  • Page 51 Another method commonly used: Start at the bottom TECHNIQUES FOR COMPLETING VARIOUS and travel diagonally up the slope. In this way a windrow PROPERTY IMPROVEMENTS will be continually drifted to one side and will tend to fill When enlarging ponds or streams, leave a ridge low spots or irregularities.
  • Page 52 BACKHOE OPERATION When lifting a full bucket, there is a tendency for the front of the tractor to rise. COunterweight in the form of a TERMINOLOGY ballast box is required to overcome this tendency. The backhoe should not exert more lift force than the effective BOOM counterweight can balance.
  • Page 53 DUMPING THE BUCKET To dump the bucket at the end of the digging cycle, lift the bucket clear of the trench while crowding it out and swinging it to the spoil pile. As the pile is approached, dump the bucket. When the bucket is empty, the dipstick and bucket are in position to resume digging upon return to the trench.
  • Page 54 backhoe at extreme swing position, and in close to the Level the backhoe on slopes with the stabilizers to dig stabilizers as possible. Pile the spoil on the opposite side plumb trenches, or... of the trenches..use the backhoe or loader to cut a level slot for the Continue the trench by moving the Tractor forward.
  • Page 55 CONTINUOUS TRENCHING WITH SPACED DIGGING STRAIGHT WALL SHALLOW BASEMENTS BELLHOLES Begin at one corner, removing a much material as Begin by digging the trench to the desired grade. possible to grade level. Then, reset the unit forward and Progress along the trench to the bellhole locations and continue digging to grade.
  • Page 56 When grave markers prevent a straight-in position PIPELINE LEAK REPAIR back the tractor in at a 45° or 90° angle to the grave site. Locate the pipeline with a bellhole about six feet (182 Position the tractor close enough to the grave to dig a cm) wide and tenn feet (304 cm) long.

  • Page 57: 10- Part Identification Photos & Drawings

    MISCELLANEOUS TREE REMOVAL SNOW PLOWING Light trees and brush are removed by lowering the blade a few inches into the ground just enough to strike Snow is bulkier than dirt and its slippery consistency and cut roots...usually done in first or second gear. An diminishes traction.

  • Page 58: Index Of Parts In Photos/Drawings

    starts over, reverse tractor quickly, for the roots pulling out When the tree is too large to lift in a bucket, dig of the ground may damage the machine. Next fill stump around the tree (as previously described) and then push it hole and then lift entire root section clear of the ground.
  • Page 59 MOVING BOULDERS AND STONE Dozers can move large rocks on firm ground perhaps several times its own weight. If the stone is too large for direct pushing, it can be pushed first on one side and then on the other. ROCKS When a large rock is imbedded in a group of smaller ones, loosen and remove the smaller ones before...
  • Page 60 MH8000 PARTS & FASTENER LIST Item Code Description 000022 Cap, (830-FS-08) 000047 Handgrip, 5/8" 000050 Handgrip, 1/2" 000069 Coated Clip 000070 Fitting, 844-FS-10 000114 Brace, Left 000115 Brace, Right 000208 Rocker Assembly, left 000213 Idler Axle only 000214 Rear Axle only 000215 Front Axle only 000217...

  • Page 61: Photos & Drawings

    000405 Bar (Replaces #272) 000412 Hose 1/2 x 18 1/4" 000428 Spring 000429 Throttle Control Assembly (universal cable) 000430 Choke Cable Assembly 000433 Clip, Coated 000434 Hose Clamp 000436 Shaft, 1-1/4" diameter 000439 Hose 1/2 x 21 1/4" 000440 Leaf Spring 000441 Switch, Sensing (interlock switch) 000445...
  • Page 62 000622 Fitting, Barb, KF04-02PS 000704 Washer, Steel, 1-3/16" ID x 1-7/8" OD x 18 Gauge 000705 Washer, Steel, 1-3/16" ID x 2-1/8 OD x 1/16, Hardened 000714 Key, 1/4" square x 1-3/4" 000716 Washer, Steel, 1" ID x 1-1/2" OD 000722 Guard 000723...
  • Page 63 001219XX Rear Drive 001219 Rear Drive Painted 000707 Bearing, Oilite, 1-3/16"ID x 1-7/16" OD x 2 000227 Knurled Flange 000226 O-Ring, 1-3/16" ID x 1-7/16" OD x 1/8" 001220 Guard 001221 Cover 001222 Track Idler Cover 001228XX Front Idler Sprocket 001228 Front Idler painted 000707 Bearing, Oilite, 1-3/16"ID x 1-7/16"...
  • Page 64 001672sfp Washer 001861 Push mount cable tie, white, 21282 001906 Cotter pin, 1/8 x 1 1/4 001908 3/16 X 1 3/4 Cotter Pin 002061 Zerk, 1/8 pipe thread 002071 Protective cap, red, battery 002072 Cap, protective, black, battery 002489sfp Tube 002583 Washer 003104...
  • Page 65 004018L 004018L Left Ball Valve Bracket, (Rear), painted 004018R 004018R Right Ball Valve Bracket, (Front), painted 004019 004019 PTO Cover, painted 004020 004020 PTO Handle - painted 004021 004021 Side shield, painted 004022 004022 Valve cover, painted 004023F 004023F Front gas tank bracket, painted 004023R 004023R Rear gas tank bracket, painted 004027...
  • Page 66 004080 004080 Green wire, oil temp ground, 14 GA x 12 004081 004081 Green wire, hour meter ground, 14 GA x 16 004082 004082 Green wire, Tractor ground, 14 GA x 40 in 004083 004083 Gray wire, seat switch, 14 GA x 63 in. 004084 004084 White wire, lights, 14 GA x 8.5 in.
  • Page 67 NUT-3/8-232 3/8-16 SPIN LOCK NUT SETSCW-5/16-178 5/16-24X1/2 SET SCREW WASH-1/4-274 1/4 Lock Washer WASH-3/8-278 3/8 LOCK WASHER WASH-5/16-276 5/16 LOCK WASHER WASH-7/16-275 7/16 Reg L/W ZC Washer 004098 Throttle outside 38 in. 004099 Throttle inside wire 44 in. BOLT-1/2-133 1/2-13X1 SPIN LOCK BLT BOLT-1/2-134 1/2-13X1 1/2 SPIN LOCK BLT BOLT-1/2-92...
  • Page 68 NUT-1/4-230 1/4-20 SPIN LOCK NUT NUT-1/4-246 1/4-20 Center (Dot) Lock Nut Zinc NUT-10-24-219 10-24 NYLON LOCK NUT NUT-3/8-222 3/8-16 Nylon Lock Nut NUT-3/8-232 3/8-16 SPIN LOCK NUT NUT-3/8-243 3/8-16 DOT LOCK NUT NUT-5/16-221 5/16-18 NYLON LOCK NUT NUT-5/16-231 5/16-18 SPIN LOCK NUT NUT-5/16-231 5/16-18 SPIN LOCK NUT NUT-5/8-245...
  • Page 69 MH8000 Part Drawings MH-A Right Rear View, (Parking Brake Linkage) MH-B Left Rear View, (Front Idler, Rear Drive Breakdown) MH-C Left Rear View, (Disk Drive, Primary Drive Breakdown) MH-D MH8000 Wiring MH-E MH8000 Hydraulics MH8000 Part Photos MH-1 Left Side View MH-2 Right Side View MH-3...

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