John Deere Air Reel Owner’s Manual
52
ASSEMBLY
Call your nearest Crary dealer for availability information
of optional equipment.
4.27.1 SPEED SENSOR KiT
The Crary Speed Sensor Gear Kit (as an option) is needed
on the Air Reel to use the automatic reel speed to ground
speed option provided on some late model John Deere
combines.
Relieve pressure from the hydraulic system.
Loosen and remove the 1/2” X 1-1/2” bolts from the
hydraulic motor (Figure 69).
Loosen clamp screws on the shaft coupler.
Remove the shaft coupler and hydraulic motor.
Simultaneously slide the shaft coupler onto the driveline
and the sensor gear weldment onto the shaft coupler.
Do not tighten the set screw yet (Figure 70).
Install the hydraulic motor.
A. Line up the key on the shaft of the hydraulic
motor with the keyway of the shaft coupler.
B. Align the mounting holes of the hydraulic motor
with the holes of the hydraulic motor mount.
C. Fasten with the supplied 1/2” X 1-1/2” bolts,
two 1/2” flat washers and two 1/2” center lock
-
nuts. Tighten coupler onto the motor shaft and
the manifold drive shaft.
D. Torque the 1/2” centerlock nuts to 75 ft-lbs.
Slide the brace clamp assemblies onto each end of
the manifold and tighten snug.
1.
2.
3.
4.
5.
6.
7.
Bolt the sensor mount bracket to the outside of the
hydraulic motor mount with the 3/8” X 3/4” Bolt, 3/8”
flat washer and 3/8” nut. Do not tighten yet.
Install the OEM speed sensor into the sensor mount
bracket and adjust to approximately 0.020” air gap
between the sensor and gear. (0.020” is approximately
1/2 turn out from sensor bottoming out on gear. Some
additional gap adjustment may be needed accord-
ing to the sensor’s sensitivity.) Control of reel speed
and display should function the same as the original
equipment.
Tighten the 3/8” hardware to 30 ft-lbs.
8.
9.
10.
Figure 69, Removing hydraulic motor
Figure 70, Installing speed sensor
WARNiNG
Place all controls in neutral or off, stop combine engine,
set parking brake, remove ignition key, set cylinder
stops, wait for all moving parts to stop, then properly
block machine before servicing, adjusting, repairing or
unplugging.
WARNiNG
Relieve pressure before working on or near the hydraulic
system. Escaping pressurized hydraulic fluid can have
sufficient force to penetrate your skin and cause serious
injury.
NOTE
The brace clamp assemblies will be used during reel to
header assembly.
4.27 OPTiONAL EqUiPMENT
