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Rotate (clockwise or counter-clockwise) the nut
end  of  each  #1030  Tension  Rod  so  that  its
respective #236 Washer (next to #234 Spring) is
drawn forward (or released rearward) thereby
setting its respective #234 Spring to a final length
of 4.5".

Work from left side to right side of Crawler
tightening each Spring 1/4" at a time until you
have achieved a 4.5" overall length for both
Springs.  [Measure Spring length only].

At  this  time  remount  and  safely  restart  your
Crawler.  Drive it approximately 25 feet forward
and then go in reverse, back to your starting point.
Shut off the engine, set Brake and dismount.
Check the overall length of your #234 Springs for
any changes in length.  Readjust to proper 4.5"
overall  length  if  necessary.    When  satisfied,
secure each 1/2" Nut (on threaded end of each
#1030 Tension Rod) with a 1/2" Lock Washer and
a second 1/2" Nut...tighten.

NOTE

:  Over time your track assemblies may

stretch.  This can result in unstable track
alignment and “throwing” tracks.  To remedy
this it may be necessary to compress the #234
Springs  to  a  dimension  smaller  than  4.5
inches.  Care should be taken not compress
beyond 4.25 inches as this will not leave
adequate room for compression during heavy
loading situations.  Care must also be taken at
all times to assure 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 Footrest.  Relocate
Footrest to its new position by aligning the two
3/8" slots in lower lip of Footrest with a mating set
of two 3/8" holes in floor of its respective Fender.
Locate the third 3/8" slot (in side lip of each
Footrest) with closest mating 3/8" wide vertical
slot in Crawler's body wall.  From outside, insert
3/8" Cap Screws into the above mating holes and
slots; secure inside with 3/8" Locknuts.        

SEAT LOCATION

The Seat and its associated "track assembly" can
be located in three positions (front to rear) on the
Cover  assembly.    To  change  Seat  location,
release Seat Latch and using the Seat as a
handle, rotate the Seat/Cover Assembly rearward
until it hits its stop.

Inside the Cover, remove the four 5/16" Nuts and
Lock Washers holding the Seat's track assembly's
threaded studs in place.  Let the Seat and its track
assembly drop away from the Cover...protect the
wires connecting the Seat Switch!

Reinsert the threaded studs of the track assembly
into one of the three new "hole patterns" you have
selected on outside of Cover.  Secure inside
Cover with original 5/16" Nuts and Lock Washers.
[Make sure Seat Switch wires are back in place
and that the Seat can slide forward and back
without pinching the wires.] 

Close Seat/Cover Assembly and secure Seat
Latch.

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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