MCi Crusader II 1989 Maintenance Manual page 79

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MC-9 MAINTENANCE MANUAL
b. Wrap the chain around the radius rod from inside to
outside.
c. Secure the hook onto the chain, as tight as possible, on
the radius rod.
8. Place the hardwood plank on the frame so that when the
frame is raised, the plank will contact the tow hooks o·r eye
support area on the coach. If the bus has a retractable step, ·
keep the plank approximately 4" away from the step.
9. Raise the front of the lift frame and locate the shield in
front of, and tight against the bumper. Support the frame in this
position. Locate the plank directly under the coach tow eye
support.
10.
At opposite comers from each radius rod. bring the tow
chains up the front of the frame shield and around the lift bar on
the tow truck.
CAUTION: Take precautions to eliminate
the slack from the chains under the frame
before llltlng the coach. This will ensure the
truck tow bar does not "ride up" over the
shield and against the front of the coach.
11. Check that the plank is in proper location against the
coach tow eyes. Carefully raise the coach front with the tow
truck winch.
12. Place two safety chains at the front of the lift frame as
follows:
a. Route each chain down through the tow hook on the
coach frame.
b. Bring the chain down the outside, and up through the
safety hook on the lift frame.
c. Secure the hook onto the chain to provide a tight
attachment
13. Bring the free end of each safety chain across to the
opposite lifting chain. Tighten by using a chain tensioner to
eliminate all slack. Make sure the safety chains are tight to
prevent side-slip of the lift frame under the coach.
14. Observe the normal precautions including, but not
limited to, the ones listed below when towing the coach:
a. Make sure the park brake is released before towing.
b. Do not allow passengers inside the coach during
towing.
c. Do not exceed a prudent. safe towing speed. Be aware
of changing conditions.
d. Avoid "tight" turning. Accelerate and decelerate slowly.
with caution.
e. Atter approximately two miles towing, check and
retighten the safety chains as necessary.
TOWING WITHOUT LIFTING COACH
NOTE: When towing without lifting the coach,
use only a tow truck equipped with a stan•
dard tow bar and related equipment All other
means of towing are unauthorized.
1. Disconnect both drive axle shafts to prevent damage to
the transmission.
2. Operate the coach engine during the tow to maintain
brake system air pressure. If the engine cannot be operated,
attach an external air pressure line. from the tow truck. to the
emergency fill valv~ in the service compartment under the
driver's floor. The air pressure must be 75 psi min .. and the line
should be attached with a clip-on air chuck affixed to the air
line.
3. Position the tow truck so thatthe truck's.tow bar contacts
the front bumper of the coach.
4. Attach the tow truck chains in the coach tow eyes and
take up all slack.
5. Attach safety chains as applicable. .
6.
Observe the normal towing precautions including, but not
limited to. the ones listed below when towing the coach:
a. Make sure the park brake is released before towing.
b. Do not allow passengers in the coach during towing.
c. Do not exceed a prudent safe towing speed. Be aware
of changing conditions.
d. Avoid "tight" turning. Accelerate and decelerate
slowly, with caution.
e. After approximately two miles towing. check and
retighten the safety and tow chains as necessary.
COACH JACKING POINTS
When it is necessary to raise the vehicle by using jacks
under body members instead of under. axles, care should be
taken to ensure that pressure is applied only at the points
indicated in Figures 3-6 and 3-7; otherwise. distortion or
damage may occur to body sections.
CAUTION: On either automatic or manual
transmission the drive axle shafts must be
removed when being towed to avoid possi-
bility of damage to transmission.
Remove stud nuts and washers retaining axle shafts, rap
center of axle shaft flange sharply to loosen dowels and pull out
axle shaft. Plug axle tube to prevent oil loss.