122
Section 4 - lubrication & maintenance
Drive Belt Adjustment And Timing
Procedures
The hydraulic motor to drive axle belt and ec-
centric drive belts must be adjusted in the proper
sequence to achieve proper belt tension. Always
adjust the eccentric belts first, then adjust the hy
-
draulic motor to eccentric drive axle belt tension.
CAUTION
ALWAYS SET THE TENSION FOR THE ECCENTRIC DRIVE
BELTS BEFORE ADJUSTING THE HYDRAULIC MOTOR TO
ECCENTRIC DRIVE AXLE BELT TENSION. IF THE HYDRAULIC
MOTOR TO ECCENTRIC DRIVE AXLE BELT TENSION IS
ADJUSTED FIRST, THE BELT TENSION WILL CHANGE AND
BE OUT OF TOLERANCE WHEN THE ECCENTRIC BELTS
ARE ADJUSTED.
Make sure the cutting system is shutdown and
the truck is in the service position. Then use the
following procedures to adjust the belts.
Step 1 - Adjust Eccentric Drive Timing:
Make sure the left and right eccentric pulleys
are in the same clock position. Adjust pulleys if
necessary.
Step 2 - Adjust The Eccentric Drive Belts:
Threaded adjusting bolts and nuts inserted into
holes in brackets just behind each eccentric drive
axle pillow block are used to move the drive axle
and set the tension for each drive belt.
Use the following procedure to adjust the eccentric
drive belts.
1. Remove the eccentric drive belt guards on each
side of the cutter chassis.
2. Loosen the four bolts in the slotted holes on
the eccentric drive axle pillow block bearings.
Make sure not to loosen them too much.
Eccentric Drive Belt Guards, Hydraulic Motor, Pulleys & Belts
1.
Eccentric Hydraulic Motor
4.
Drive Axle Pillow Block Bearings
2.
Hydraulic Motor To Eccentric Drive Axle Belt
5.
Eccentric Drive Belt Guard
3.
Eccentric Drive Axle
6.
Eccentric Drive Belt
1
2
5
6
4
3
Содержание RH7500
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