80
TROUBLE SHOOTING
If clutch fails to operate with engine temperature over 205 degrees F., check the temperature sensing
device first, check the wiring and terminals, then using a jumper wire touch the two terminals of the tempera-
ture switch, if the clutch clicks in when you jump these terminals, the temperature sensing device has failed.
(The engine temperature must be over 205 degrees F. with the clutch still not engaged during the test.) If this
is the case, temporarily connect the two terminals and this will by-pass the temperature sensing device caus-
ing the fan to run all the time. Install a new temperature sensing device as soon as possible.
TC/2000 PITMAN ARM
If it becomes necessary to remove the pitman arm from the steering gear, it is possible with the gear still
on the vehicle. The pitman arm may be removed as follows:
1. Remove the front of the drag rod from the pitman arm.
2. Rotate the steering gear so that the pitman arm nut and bolt are accessible with a socket and extension
for a ratchet wrench.
3. Locate and mark pitman arm and steering gear output shaft with a scribe or felt marker before re-
moval of pitman arm to insure reinstallation in the same location.
4. After removing the pitman arm nut and bolt, the pitman arm boss must be spread in order to loosen
the pitman arm for removal from the shaft. Spreading the boss may be accomplished by using the
correct size Allen wrench, a chisel or a pitman arm spreader.
5. When the boss is spread, slide the pitman arm off the steering gear shaft.
6. If vendor supplied mark does not line up with mark on the steering gear output shaft; cross out
vendor supplied mark on pitman arm with a small chisel or punch and hammer.
7. Make a new mark to line up with mark on the steering gear output shaft.
If the same pitman arm is to be reinstalled onto the steering gear, clean the end of the steering gear shaft
and the outside of the pitman arm so that the alignment marks on each are visible.
The pitman arm may be installed as follows:
1. Rotate the output shaft on the steering gear so that the mark on the output shaft is perpendicular to
the input shaft.
2. On the TCFE install the pitman arm on the steering gear output shaft (1) spline to the rear from paral-
lel to the input shaft so that the marks on the splines align. On the TCRE install the pitman arm on the
steering gear so that the marks on the splines align.
3. Install the pitman arm clamp bolt, nut and hardened flatwasher on the nut side. Be sure there is no
spreading wedge left in the pitman arm boss before torquing the pitman arm clamp bolt to 280-325 ft.
lbs.
4. Reinstall the drag rod onto the pitman arm. (Torque 120-170 ft. lbs.)
TCFE Alignment marks
(1) Spline from Parallel
Содержание TC/2000
Страница 1: ...Owner s Manual TC 2000 ...
Страница 3: ...2 ...
Страница 106: ...105 NOTES ...
Страница 111: ...Part Number 1919331 Blue Bird Corporation P O Box 937 Fort Valley GA 31030 ...