Freightliner FLA/FLB/FLC/FLD/FLL. Manual — part 5
velocity fuses have locked up the tilt cylinders;
unlock them.
WARNING
Make sure the tilt strut is pushed down onto the
right tilt-cylinder rod. If the tilt strut is not en-
gaged, and the cab drops, the result could be seri-
ous injury or death.
5.
When the cab reaches a 30-degree angle, stop
working the pump. Push the free end of the tilt
strut down onto the right tilt-cylinder rod. See
. The tilt strut prevents the cab from acci-
dently dropping below this position.
6.
To tilt the cab all the way, continue working the
pump until the cab nears a 45-degree angle. Re-
duce pumping speed. Once the cab goes beyond
45 degrees, stop working the pump. The cab will
gently descend to a full-tilt position. To stop the
cab at any position between 45-degrees and full-
tilt, move the control lever to "Lower."
IMPORTANT: If the cab unintentionally stops
after it has gone beyond 45 degrees, do not
force it down with the tilt pump. The velocity
fuses have locked the tilt cylinders; unlock them.
Returning the FLB Cab from
the Tilted Position
DANGER
Stay completely clear of the cab’s travel path at all
times. Once the tilt strut has been released, do
not lean over the frame rails, the engine, or the
transmission for any reason. To do so could result
in serious injury or death.
1.
Move the tilt strut away from the right tilt-cylinder
rod, and lock it in the spring catch.
If the cab was tilted less than 45 degrees, raise it
enough to release the tilt strut. Move the tilt strut
away from the tilt-cylinder rod, and lock it in the
spring catch before lowering the cab. See
07/26/93
f310360a
Fig. 4, Cab Latch Indicator Pin
04/15/93
f310357a
1
2
1.
Tilt-Cylinder Rod
2.
Tilt Strut
Fig. 5, Tilt Strut Positioning
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f310358a
1
2
3
1.
Tilt Strut
2.
Tilt-Cylinder Rod
3.
Tilt Cylinder
Fig. 6, Releasing the Tilt Strut
General Information
00
COE Cab Tilting, FLA/FLB: 00–11
00/21
2.
Set the pump control lever at "Lower," and work
the pump until the cab nears a 45-degree angle.
Reduce pumping speed. Once the cab goes over
center, stop working the pump. The cab will gen-
tly descend to the operating position.
To stop the cab at any position between 45 de-
grees and 30 degrees, move the control lever to
"Raise," and push the tilt strut down onto the
right tilt-cylinder rod.
IMPORTANT: If the cab unintentionally stops
after it has gone beyond 45 degrees, do not
force it down with the tilt pump. The tilt strut is
in the locked position, or the velocity fuses have
locked the tilt cylinders. Release the tilt strut, or
unlock the velocity fuses.
3.
When the cab is lowered all the way, make sure
the pump control lever is set at "Lower."
4.
Check the indicator pin on each cab latch. See
. The latches are locked when the pins
have moved back into the piston and cylinder
spring assembly.
5.
Push the transmission shift lever forward to lock
the shift tube latch mechanism.
NOTE: Maintain the hydraulic fluid level at the
oil fill plug. Add fluid only when the cab is in the
operating position. Use only Freightliner-
approved hydraulic fluid; see
for
specified fluid.
Tilting the FLA Cab
CAUTION
Before tilting the cab, make sure the vehicle is
parked on level ground, both side-to-side and
front-to-rear. Tilting the cab while the vehicle is
parked on unlevel ground (such as a sloping high-
way shoulder) may damage the cab mounts and
prevent you from returning the cab to the operat-
ing position.
1.
Apply the parking brakes. Place the transmission
shift lever in neutral. Shut down the engine if it is
running.
WARNING
Before tilting the cab, make sure that there is ad-
equate clearance in front of the vehicle, and that
the area is free of people and all objects.
Do not tilt the cab with the engine running. Tilting
the cab could engage the transmission. If the en-
gine is running, the vehicle can move, causing an
accident that could result in personal injury or
property damage.
2.
Remove the pump handle from the baggage
compartment, and insert it into the pump shank.
3.
Secure all loose articles in the cab and bunk,
and make sure the doors are securely latched.
WARNING
Objects falling in the cab, or a door flying open,
could damage the vehicle or cause personal in-
jury.
4.
Move the pump control lever to "Raise."
5.
Unlock the back-of-cab latch handles (
) by
pulling them outward. See
CAUTION
Do not work the tilt pump while the cab latches
are locked. Doing this causes stress in the back
of the cab, which could cause rivet and cab-skin
damage.
f310039
07/22/93
Fig. 7, Latch Handle (Locked Position)
General Information
00
COE Cab Tilting, FLA/FLB: 00–11
00/22
6.
Pull the safety hook release handle (
) while
working the hydraulic pump. If the cab does not
begin to raise during the first 10 to 15 strokes,
stop what you are doing. Make sure the shift
tube latch mechanism has released.
CAUTION
Continued application of force to tilt the cab when
the shift tube latch mechanism has not released
could result in transmission or shift tube damage.
NOTE: If air is present in the hydraulic tilt sys-
tem, pump operation will seem "spongy" or inef-
fective. If this happens, bleed the air from the
system; for instructions, see Group 60 of the
Heavy-Duty Trucks Service Manual.
If the cab stops moving while it is being raised,
do not force it to move with the tilt pump. The
velocity fuses have locked up the tilt cylinders;
unlock them.
7.
After the safety hook has been raised above the
safety catch (
), let go of the release
handle. Tilt the cab to a 30-degree angle.
WARNING
Make sure the tilt strut is pushed down onto the
right tilt-cylinder rod. If the tilt strut is not en-
gaged, and the cab drops, the result could be seri-
ous injury or death.
8.
When the cab reaches a 30-degree angle, push
the free end of the tilt strut down onto the right
tilt-cylinder rod. See
. The tilt strut pre-
vents the cab from accidently dropping below
this position.
9.
To tilt the cab all the way, continue working the
pump until the cab nears a 45-degree angle. Re-
duce pumping speed. Once the cab goes beyond
45 degrees, stop pumping. The cab will gently
descend to a full-tilt position. To stop the cab at
any position between 45-degrees and full-tilt,
move the control lever to "Lower."
IMPORTANT: If the cab unintentionally stops
after it has gone beyond 45 degrees, do not
f310040
07/22/93
Fig. 8, Latch handle (Unlocked Position)
f310041
07/22/93
Fig. 9, Safety Hook Release Handle
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f310042
1
2
1.
Safety Catch
2.
Safety Hook
Fig. 10, Safety Catch Mechanism
General Information
00
COE Cab Tilting, FLA/FLB: 00–11
00/23
force it down with the tilt pump. The velocity
fuses have locked the tilt cylinders; unlock them.
Returning the FLA Cab from
the Tilted Position
DANGER
Stay completely clear of the cab’s travel path at all
times. Once the tilt strut has been released, do
not lean over the frame rails, the engine, or the
transmission for any reason. To do so could result
in serious injury or death.
1.
Move the tilt strut away from the right tilt-cylinder
rod, and lock it in the spring catch.
If the cab was tilted less than 45 degrees, raise it
enough to release the tilt strut. Move the tilt strut
away from the tilt-cylinder rod, and lock it in the
spring catch before lowering the cab. See
2.
Set the pump control lever at "Lower," and work
the pump until the cab nears a 45-degree angle.
Reduce pumping speed. Once the cab goes over
center, stop pumping. The cab will gently de-
scend to the operating position.
To stop the cab at any position between 45 de-
grees and 30 degrees, move the control lever to
"Raise," and push the tilt strut down onto the
right tilt-cylinder rod.
IMPORTANT: If the cab unintentionally stops
after it has gone beyond 45 degrees, do not
force it down with the tilt pump. The tilt strut is
in the locked position, or the velocity fuses have
locked the tilt cylinders. Release the tilt strut, or
unlock the velocity fuses.
3.
When the cab is lowered all the way, make sure
the pump control lever is set at "Lower."
4.
Lock the cab latch handles. See
. Make
sure the cab latch hooks have engaged the
U-bolts on the cab mounts, and that each latch
handle lockpin is engaged.
5.
Remove the pump handle from the pump shank.
Mount the handle in the baggage compartment.
6.
Push the transmission shift lever forward to lock
the shift tube latch mechanism.
NOTE: Maintain the hydraulic fluid level at the
oil fill plug. Add fluid only when the cab is in the
operating position. Use only Freightliner-
approved hydraulic fluid; see
for
specified fluid.
07/21/93
f310043
1
2
1.
Tilt-Cylinder Rod
2.
Tilt Strut
Fig. 11, Tilt Strut Positioning
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f310044
1
2
3
1.
Tilt Strut
2.
Tilt-Cylinder Rod
3.
Tilt Cylinder
Fig. 12, Releasing the Tilt Strut
General Information
00
COE Cab Tilting, FLA/FLB: 00–11
00/24
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