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Pulling forward on the Track will allow you to now
loop the Track off the remaining Outer Sprocket
on  the  Front  Idler  allowing  complete  Tr a c k
removal.

TRACK REPLACEMENT

Before replacing a Track, it's wise to thoroughly
clean it of all debris...a pressure wash job is a
good idea.

Slip the rearward end of Track around the Inner &
Outer Sprockets of the Rear Drive engaging the
Track's Inner Chain between the Inner & Outer
Sprockets of the Rear Drive.

Loop the forward end of the Track around the
Inner & Outer Sprockets of Front Idler engaging
the Track's Inner Chain between the Inner & Outer
Sprockets of the Front Idler. The Track's Inner
Chain should now be located between the Inner &
Outer Sprockets of the Front Idler and Rear Drive.

Begin rotating the Track rearward.  As the Track
rotates rearward work the Track inward until the
Track's Inner & Outer Chains align and engage
the teeth of their mating Inner & Outer Sprockets
of the Rear Drive.

Rotate Track forward and work the Track inward
until the Track's Inner & Outer Chains align and
engage the teeth of their mating Inner & Outer
Sprockets on the Front Idler.

NOTE

: The preceding procedure is the same

for the replacement of either Track.

Replace each #234 Spring (removed above under
“track removal”) by slipping it over the threaded
end of its respective #1030 Tension Rod (on
outside of each Track) and over 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 crawler's center!

By rotating nut end of each #1030 Tension Rod
clockwise, draw the 1/2" Nut and #236 Washer
(on each Tension Rod's end) against its respective
#234 Spring such that each Spring is compressed
to a total length of 4.5".

NOTE: Tighten the pair of #234 Springs 1/4" at
a time.  Tighten the left side #234 Spring 1/4",
then stop and go to the right side #234 Spring
and tighten it 1/4".  Work back and forth from
left side #234 Spring to right side #234 Spring,
1/4" at a time, until both Springs are 4.5" in
total length.  [Measure Spring length only...do
not include the #235 and #236 Washers in
your measurement].

At this time, slowly and safely remove all support
blocking from underneath your Crawler so that the
Crawler rests firmly on only its Tracks.  Go on to
the  next  section  for  instructions  on  Tr a c k
Tensioning.

TRACK TENSIONING

Remove the 1/2" Nut and Lock Washer on the
threaded end of each #1030 Tension Rod. [Omit
this  step  if  you  have  just  completed  Tr a c k
Replacement above].

Begin your tensioning procedure by checking the
overall length of the #234 Spring on each side of
Crawler.  Both Springs should be compressed to
an overall length of 4.5".  [The length measured is
only the Spring; do not include the #235 & #236
Washers in your measurement!]

If your Springs have lost this 4.5" dimension, or
you have just replaced a broken #1030 Tension
Rod, follow this procedure:

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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