rev 12/98 5 - 9 09-367
SERVICE section 5
PTO and Belts
STOP ENGINE! DO NOT ATTEMPT TO INSTALL
BELTS OR MAKE BELT ADJUSTMENTS WITH
THE ENGINE RUNNING.
1. Belt Drive
•
Steiner belts are recommended. (See Belt
Chart for sizes). Steiner specification belts are
Kevlar reinforced to take back bend and retain
a consistent length - to keep belt to pulley
geometry consistent.
2. Engaging/Disengaging
• Never engage at full RPM always reduce
engine RPM before engaging PTO.
3. Keep all moving parts lubricated
• Slider bracket arm.
Grease every 25 hours.
It must swing freely
Spray lubricant on adjustment threads every
25 hours.
4. Alignment
•
Make sure slider bracket arm isn’t bent.
•
Engine pulley to double idler - Lay straight
edge on engine pulley, should line up with the
center ridge of double idler pulley.
Linamar & Kohler... Move engine pulley to adjust.
Kubota... Space double idler to adjust.
•
Double idler to mower deck pulley - With
tractor & mower on a flat surface with front lift
in float, tops of pulleys should be in line.
5. Adjustments
(Must be made with an attachment on the tractor)
•
Every time attachments are changed.
See Section 4, page 4-8 for additional
instructions.
•
Every time belts are changed.
•
Adjustment is made by turning the belt release
catch handle (located front right side of tractor).
•
To tighten belt turn adjuster handle clockwise.
•
To loosen belt turn adjuster handle counter
clockwise.
•
Over tightening could cause severe damage.
Operation
• The PTO drive is designed so that the harder the
attachment pulls the tighter the belt gets and
wraps more on the pulley.
When PTO is engaged the idler arm is on the
slack side which causes the belt to wrap more
around the pulleys.
With the PTO engaged, as the front lift moves up
and down, the attachment pulley (moving with
the front lift) pulls on the double idler and keeps
a constant tension on both drive belts.
Engine Drive Pulley
Attachment Pulley
Clutch
Idler
Double
Idler
2-1/4 to 2-1/2 inches for Linamar and
Kohler
1-1/2 to 1-3/4 inches for Kubota
PTO Drive Belts
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