Alamo GR60 - Manual (Page 132)

MAINTENANCE
GR60/72 02/07 Maintenance Section 5-8
© 2007 Alamo Group Inc.
MAINTENANCE
Torque Limiter - GR72
Avoid overheating of the Torque Limiter by too long or too frequent slipping, as this can damage the friction
plates and limiter parts. When checking Torque Limiter for overheating, DO NOT touch with hand. Torque
Limiter could be extremely hot and cause severe burn.
If an adjustment is required, this may be done in the field by following the procedure outlined below. Following
these instructions will give maximum rated torque and long life. (See Mnt-0018).
1. With the three Capscrews (#1) backed out until the points are below the surface of the circular Adjusting
Nut (#2), run Adjusting Nut up finger-tight, or slightly less than finger-tight.
2. Alternately tighten the hardened, cup point Capscrews (#1) no more than one-half turn at a time until the
Capscrew heads "Bottom Out". Do not over tighten the Capscrews nor completely flatten the Spring
Washers (#3).
If the Hub is removed from the Shaft for any reason, the Shaft and Hub should be coated with a heavy grease
before reassembly to prevent Hub from freezing to Shaft.
Seasonal Torque Limiter Maintenance
It is important that the Torque Limiter slips when an obstacle or load heavier than the setting is encountered.
Before using the cutter each season, use the following procedure to make sure the torque limiter will slip and
give the overload protection required.
1. Loosen Bolts (#1) until gap between adjusting nut (#2) and guide ring is approximately 1/16".
2. Attach machine to tractor, set engine at approximately half throttle and quickly engage PTO. This
procedure will break Torque Limiter facings loose and allow the proper torque to be maintained.
3. Return the bolts to their original position as described in (b) above.