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SERVICE

In the following Service section of this Manual,
you will be required to do various assembly and
disassembly procedures.  Each section will try to
remind you of safe procedures, but the best safety
device is still the mechanic himself.

C A U T I O N

: Try to do your work in a level,

open area away from people and obstacles.

1. Pay attention to what you are doing...the parts

you will be handling can be heavy, sharp or
could pinch.  Always wear heavy gloves when
handling  the  Tracks  and  similar  sharp,
pinching components.

2. When you are required to block the Crawler to

raise it off the ground, make sure you use
strong blocking materials and think out how
the  Crawler  will  safely  balance  on  your
blocking. 

Never be too proud to ask a friend or neighbor for
help...especially when blocking up your Crawler or
working with the Tracks.

As always, the factory is your best source for
competent service advice and explanations of any
service procedures that are unclear...always feel
comfortable calling for whatever advice you may
need!

ENGINE

Your Crawler comes with a complete Engine
Service Manual.  It provides troubleshooting tips
along with complete rebuilding procedures.  If
further help is needed, contact your local Engine
d e a l e r...he's  listed  in  the  telephone  "Ye l l o w
Pages" under "Engines, gasoline".

STARTER

IMPORTANT

:  Do not hold down starter button

longer than 10 seconds at a time.  If the Engine
does not start within 10 seconds, wait 60 seconds
before pushing starter button again.  After a false
start, do not push starter button until Engine has
stopped turning.

If  the  starter  will  not  operate  or  operates
sluggishly, check for the following:

Run down battery.
Dirty, loose, or corroded cables and wires.
Engine oil viscosity too heavy.

BATTERY

Your Crawler has a 12 volt, negative-grounded
system with one Battery-.

BATTERY PRECAUTIONS

CAUTION

:  Sulfuric acid in batteries is a

poison and could cause severe burns.

Avoid contact with skin, eyes, and clothes.  When
you work around batteries, protect eyes and face
from battery fluid and explosion.

Antidotes for Sulfuric Acid:

EXTERNAL

1.  Flush skin well with water.

2.  Flush eyes for 15 minutes.

3.  Get medical attention immediately.

INTERNAL

1.  Drink a large amount of water or milk.

2.  Then drink milk of magnesia, beaten eggs,

or vegetable oil.

3.  Get medical attention immediately.

CAUTION

: Keep  flames  and  sparks

away from battery.

Do  not  use  booster  cables  or  adjust  battery
terminal connections unless you know the correct
procedure.

When you charge a battery or use a battery in a
closed space, be sure there is enough ventilation.

Keep batteries where children cannot reach them.

Keep vent caps tight and level.

Summary of Contents for MD750

Page 1: ...racks into the pile and force unnecessarily large amounts of material into the Tracks The track system is designed to absorb a great deal of material but the less you force it to digest the greater wi...

Page 2: ...CATION and PERIODIC SERVICE 11 Lubrication and Service Intervals Periodic Service Chart SERVICE 13 Engine Starter Battery Safety Interlock Switches Seat HC55 Switch Test Main Drive Clutch Brake Switch...

Page 3: ...ne Model Number ________________ Engine Serial Number ________________ C F STRUCK CORPORATION W51 N545 STRUCK LANE CEDARBURG WISCONSIN 53012 Phone 262 377 3300 Fax 262 377 9247 Version 01 01 03 TO THE...

Page 4: ...ossible at all times especially when you work on a hillside or back up a steep hill Do not drive too close to the edge of a ditch or excavation Watch for overhead wires Do not touch wires with any par...

Page 5: ...r battery Never check fuel battery electrolyte or coolant levels with an open flame Never use an open flame to look for leaks anywhere on the equipment Never use an open flame as light anywhere on or...

Page 6: ...ts and warning labels A EMERGENCY SERVICE BRAKE LEVER B LEFT TRACK CONTROL C RIGHT TRACK CONTROL D THROTTLE CONTROL E CHOKE CONTROL F IGNITION SWITCH G OIL TEMPERATURE METER H HOUR METER I AMMETER J A...

Page 7: ...her instructions RELEASING SEAT PAN Release the seat latch on the front center of the the seat pan assembly 1 Rotate the Seat Cover Assembly 2 all the way to the rear until it hits its stop back edge...

Page 8: ...MMETER Measures electrical charge or discharge to battery If Ammeter shows a discharge increase throttle until unit indicates charging If at higher throttle level unit fails to indicate charging shut...

Page 9: ...e there is enough ventilation Be sure to know the correct starting and stopping procedure Sit in the Operator s Seat PREPARE FOR ENGINE STARTING 1 Allow Left and Right Track Controls to assume their n...

Page 10: ...ain TRAVELING Hold Brake Lever fully forward then push outwardly to unlock it from behind its tab or bolt Slowly release pressure on the Lever allowing it to come back to its rearward position Raise a...

Page 11: ...Engine stops under load remove load Start Engine immediately Run 30 seconds at half speed before adding load If Engine stops you must turn key Off before you can start the Engine In freezing weather...

Page 12: ...L Check enclosed Engine Owner s Manual and closely follow their recommendations HYDRAULIC OIL Use a premium quality hydraulic oil with maximum anti wear properties rust and oxidation treatment like Mo...

Page 13: ...in Front Idler and Rear Drive Assemblies Remove zerks try to have them on the top side Using an oil can with SAE 30 motor oil fill each reservoir through threaded hole do this at day s end to allow o...

Page 14: ...replace with new Tracks and Track Sprockets Remove and pressure wash Track Pressure wash Front Idler and Rear Drive Sprockets EVERY 200 HOURS Hydraulic Fluid Completely drain system by removing plug i...

Page 15: ...dealer he s listed in the telephone Yellow Pages under Engines gasoline STARTER IMPORTANT Do not hold down starter button longer than 10 seconds at a time If the Engine does not start within 10 second...

Page 16: ...tch to close and activate the electrical circuits NO or normally open the plunger has to be released for the switch to open and safely deactivate the circuit The plunger of the 1162 Interlock Switch s...

Page 17: ...On 3 Brake Lever unlocked and allowed to travel rearward The Brake Switch should be open the 440 Leaf Spring would have rotated down and away The light of the continuity tester should now be Off If bo...

Page 18: ...wler s body loosen but do not remove the nuts on the twelve 3 8 x 1 Carriage Bolts six on each side of Crawler that secure the 2033 Supports one on each side of body which hold the 2065 Rear Axle TIP...

Page 19: ...make sure Seat Latch catches securely If you have blocked up your Crawler and removed its Tracks replace Tracks and lower Crawler to ground at this time per Track Maintenance section of this Manual...

Page 20: ...entirety before attempting any Disk Brake adjustments Release Parking Brake Unscrew a few turns the 225C Jam Nut on 225R 225L Right Left Disk Brakes to release each Jam Nut s respective 225D Threaded...

Page 21: ...age assemblies as describe above until you reach the approximately 15 lb force level If it takes more than the recommended 15 lbs pressure evenly loosen the clevis on the end of each Brake tension rod...

Page 22: ...s Tracks clear the ground by approximately 2 and are free to rotate release Brake at this time Use solid blocking and place it under the Crawler s body so that it will give the Crawler the greatest su...

Page 23: ...its 262 Tube which should still be in place on Tension Rod Secure each Spring with its original 236 Washer and 1 2 Nut fine thread NOTE Notched edge of 235 Washers should still be pointing in toward...

Page 24: ...ssure that both springs are compressed equally FOOTREST ADJUSTMENT Right Left Footrests L are adjustable in three positions front to rear To adjust remove the three 3 8 Cap Screws holding each Footres...

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