OPERATION
SE10-4A/SE15-4A 03/09 Operation Section 4-5
© 2009 Alamo Group Inc.
OPERATION
3. TRACTOR REQUIREMENTS
The tractor used to operate the mower must have the power capacity to lift, pull, and operate the Power Take
Off (PTO) at the mower’s rated speed while traveling at a ground speed between 2 and 5 MPH. Operating the
mower with a tractor that does not meet the following requirements may cause tractor or mower damage and
be a potential danger to the operator and passersby.

Tractor Requirements and Capabilities

ASAE approved Roll-Over Protective Structure (ROPS) or ROPS cab and seat belt.
Tractor Safety Devices..................... Slow Moving Vehicle (SMV) emblem, lighting, PTO master shield
Tractor Horsepower:
-Minimum ..................SE10-4A: 40 HP, SE15-4A: 50 HP
-Maximum.................. 130 HP
Drawbar............................................ 14” length for 540 RPM; 16” length for 1000 RPM unit, if mower is
equipped with Pintle Hook (Optional Equipment) drawbar length must
be modified see 3.5 Drawbar), rated to carry weight of mower, safety
chain attachment point
Hydraulics......................................... Minimum of 1 hydraulic port (extra 3-spool valve required). Minimum
2 ports, 3 ports recommended if additional 3-spool control valve is not
used.
Front End Weight ............................. As needed to maintain 20% weight on front axle
Power Take Off.................................540 RPM 6-spline or 1000 RPM 21-spline, 1-3/8” diameter output
shaft or 1000 RPM 1-3/4-20 spline output shaft.

3.1 ROPS and Seat Belt

The tractor must be equipped with a Roll-Over-Protective-Structure (ROPS) (tractor cab or roll-bar) and seat
belt to protect the operator from falling off the tractor, especially during a roll over where the driver could be
crushed and killed. Only operate the tractor with the ROPS in the raised position and seat belt fastened.
Tractor model not equipped with a ROPS and seat belt should have these life saving features installed by an
authorized dealer. OPS-U- 0003
Operate this Equipment only with a Tractor equipped with an approved roll-
over-protective system (ROPS). Always wear seat belts. Serious injury or
even death could result from falling off the tractor--particularly during a turnover
when the operator could be pinned under the ROPS. (SG-7)