Alamo RHINO FX21 - Manual (Page 107)

OPERATION
FX17/FX21 02/11 Operation Section 4-9
© 2011 Alamo Group Inc.
OPERA
T
ION
Connecting the Mower Tongue to the Tractor
1. The tractor must be equipped to operate at 540
rpm PTO speed and the drawbar length at 14”.
2. Using the parking jack, position the tongue clevis to
the height of the tractor drawbar.
3. Board the tractor and start the engine. Back the
tractor to the mower aligning the drawbar hitch hole
with the mower tongue clevis. Turn off the tractor
engine, place the tractor in park, and set the
parking brake before dismounting.
4. To connect the mower, place two 1” flatwashers(1)
positioned under top lip of tongue clevis and to the
top of drawbar. Insert a 1”diameter grade 5 or 8
bolt(3) through clevis and drawbar and retain in
position with a 1” locknut(4). Tighten the locknut
securely but do overtighten which could spring or
break the clevis. NEVER attach mower to the
tractor with a pin not having a nut.
5. After connecting the mower you can adjust tongue
clevis up or down to level out mower. Note: Frame
must always be angled down 3 to 4 degrees so that
wing mower head cut height can be properly set.
There are four settings to choose from. First two
setting can raise the mower up if mower needs to
be raised to be level. There is a 2” difference
between both settings.(Refer to Figures 1 & 2). If
mower needs to be lowered to be level, flip the
clevis tongue upside down to lower the mower.
There is also a 2” difference between both settings
(Refer to Figures 3 & 4).
6. Securely attach the mower safety chain to the
tractor drawbar or drawbar support frame.
7. Lower the jack until the tongue is completely
supported by the drawbar. Remove jack from the
tongue and place on storage bracket of the mower.
Safety Tow Chain
If the mower is towed on a public roadway, a safety chain with tensile strength equal to or greater than the
gross weight of the mower must be connected between the tractor and mower. This will help control the
implement in the event the tongue becomes disconnected from the drawbar. After connecting both ends of the
safety chain, drive the tractor to the right and left to check for proper chain length. Adjust length as necessary
and allow only enough slack in the chain to make a maximum turn in both directions.
Note: By placing a 1” flatwasher #00759275
between drawbar and clevis the frame can be
raised to proper level. Remove washers to
lower.