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TRACK MAINTENANCE

Before attempting to complete any part of this
Track Maintenance section, it is recommended
that you read all three parts (Track Removal,
Track  Replacement  and  Track  Tensioning)  to
provide  background  on  how  the  total  Tr a c k
System is adjusted and maintained.

Below are a series of drawing to aid you in parts
identification  as  you  read  the  following
procedures.  For clarity, only the parts described
in the instructions are included in most of the
photos. In some cases, certain parts do not
appear in all drawings, to lessen confusion.

CAUTION

: When working with the Tracks,

you will be dealing with some significant

weights and lifting situations.  Though the Crawler
can be successfully "blocked up" off the ground
and the Tracks removed and replaced by a single
person, it's advisable to have an able-bodied
"helper" available for both assistance and safety.

Begin  any  Track  Maintenance  procedure  by
checking that your Track System is relatively
clean and free of debris...a high-pressure wash
job is an excellent idea.  In addition, drive your
Crawler through a "clean area" to work out debris
that may have lodged between Track Sprocket
teeth or in the Track's Chain Links.  Park your
Crawler on a firm level surface, shut off engine,
set brake and dismount.

TRACK REMOVAL

From below, support body of Crawler so its 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 support
left to right and front to rear.  [When locating your
blocking, analyze the total weight and balance of
the Crawler as it will change as the Tracks are
removed and then replaced!  

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 its original operating level, the more
slack you will have in the "upper strand" of the
Track to work with!

Loosen and remove the first 1/2" Nut and Lock
Washer from the threaded end of each #1030
Tension Rod.

By rotating the "nut end" of each #1030 Tension
Rod  counter-clockwise,  loosen  and  remove
remaining  1/2"  Nut,  #235  Washer  and  #234
Spring.  Slide #2065 Axle fully rearward.

With gloved hands, begin to rotate the Track
forward.  [TIP: As you rotate the Track work the
Track Clutch Controls back and forth to relieve
internal pressure].

As the Track is rotated forward, work the forward end
of the Track outward.  Stop working the Track outward
when the Track's Inner Chain is centered between the
Inner & Outer Sprockets of the Front Idler...see below.

In a similar manner, rotate the Track rearward
making sure that the Track's Inner Chain remains
between the Inner & Outer Sprockets on the Front
Idler.

This time work the rearward end of the

Track over both the Inner & Outer Sprockets of the
Rear Drive...see drawing below.

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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