Bobcat S150. Manual - part 19

S150 Bobcat Loader

Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS)

Inspecting The BICS Controller (Engine Stopped -
Key ON)

Figure 118

Sit in operator’s seat. Turn key ON (Standard Panel),
press RUN / ENTER Button (Deluxe Panel), lower
seat bar and disengage parking brake. Press the
PRESS TO OPERATE LOADER Button. Three BICS
lights (1, 2 & 3) [PRESS TO OPERATE LOADER,
SEAT BAR, AND LIFT & TILT VALVE] on left
instrument panel should be ON [Figure 118].

Raise seat bar fully. All four BICS lights (1, 2, 3, and 4)
[PRESS TO OPERATE LOADER, SEAT BAR, LIFT &
TILT VALVE AND TRACTION*] on left instrument
panel should be OFF [Figure 118].

NOTE: Record what lights are blinking (if any) and

the number of light flashes. (See SYSTEM
SETUP AND ANALYSIS on Page 1.)

Inspecting Deactivation Of The Auxiliary Hydraulics
System (Engine STOPPED - Key ON)

Sit in operator’s seat, lower seat bar, and press the
PRESS TO OPERATE LOADER Button. Press the
auxiliary hydraulics FLOW Button. The auxiliary
FLOW Button light will come ON. Raise the seat bar.
The light should be OFF.

Inspecting The Seat Bar Sensor (Engine RUNNING)

Sit in operator’s seat, lower seat bar, engage parking
brake and fasten seat belt.

Start engine and operate at low idle. Press the
PRESS TO OPERATE LOADER Button. While
raising the lift arms, raise the seat bar fully. The lift
arms should stop. Repeat using the tilt function.

Inspecting The Traction Lock (Engine RUNNING)

Fasten seat belt, disengage parking brake, press the
PRESS TO OPERATE LOADER Button and raise
seat bar fully. Slowly operate the machine forward
and backward. The TRACTION lock should be
engaged. Lower the seat bar. Press the PRESS TO
OPERATE LOADER Button.

Engage parking brake and move steering levers
slowly forward and backward. The TRACTION lock
should be engaged.

NOTE: *The TRACTION light on the left instrument

panel will remain OFF until the engine is
started, the PRESS TO OPERATE LOADER
Button is pressed and the parking brake is
disengaged.

Inspecting The Lift Arm By-Pass Control

Raise the lift arms 2 meters off the ground. Stop
engine. Turn lift arm by-pass control knob clockwise
1/4 turn. Pull up and hold lift arm by-pass control knob
until lift arms slowly lower.

Inspecting Deactivation Of Lift And Tilt Functions
(ACS and SJC)

Sit in operator’s seat and fasten seat belt. Lower seat
bar, start engine and press the PRESS TO OPERATE
LOADER Button.

10. Raise lift arms about 2 meters off the ground.

11. Turn key OFF (Standard Panel), press STOP Button

(Deluxe Panel), and wait for the engine to come to a
complete stop.

12. Turn key ON (Standard Panel), press RUN / ENTER

Button (Deluxe Panel). Press the PRESS TO
OPERATE LOADER Move the control (foot pedal or
hand control) to lower the lift arms. Lift arms should
not lower.

13. Move the control (foot pedal or hand control) to tilt the

bucket forward. The bucket (or attachment) should
not tilt forward.

WARNING

AVOID INJURY OR DEATH

The Bobcat Interlock Control System (BICS™) must
deactivate the lift, tilt and traction drive functions. If it
does not, contact your dealer for service. DO NOT
modify the system.

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B-15551

S150 Bobcat Loader
Operation & Maintenance Manual

REAR DOOR

Opening And Closing The Rear Door

WARNING

AVOID INJURY OR DEATH

Never service or adjust the machine when the engine
is running unless instructed to do so in the manual.

W-2012-0497

Figure 119

Reach into the slot in the rear door and pull the latch
handle [Figure 119].

Pull the rear door open.

Figure 120

Move the door stop into the engaged position (1)
[Figure 120] to hold the door open. Move to disengaged
position (2) [Figure 120] to allow the door to close.

Close the rear door.

WARNING

Keep the rear door closed when operating the
machine. Failure to do so could seriously injure a
bystander.

W-2020-1285

Adjusting The Rear Door Latch

Figure 121

The door latch (1) [Figure 121] can be adjusted side to
side for alignment with the door latch mechanism.

Close the rear door before operating the loader.

P-45012

P-30806

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S150 Bobcat Loader

Operation & Maintenance Manual

REAR GRILL

Removing

Open the rear door.

Figure 122

Lift and pull the rear grill and remove it from the loader
[Figure 122].

Installing

Insert the tabs into the slots (1) [Figure 122] at the front
edge of the grill. Lower the grill to the frame.

Close the rear door.

HEATING SYSTEM

Cleaning And Maintenance

The heating system requires regular inspection and
maintenance. (See SERVICE SCHEDULE on Page 53) for
intervals.

Filters

Figure 123

The Fresh Air Filter is located below the rear window of
the cab (1) [Figure 123].

Remove the knobs and remove the filter housing.

Shake the filter or use low air pressure to remove dirt.
The filter can be cleaned several times in this manner
then it must be replaced.

Reinstall the filter housing.

The Recirculation Filter is located in front of the rear
window inside the cab (2) [Figure 123].

Remove the clamping knobs, grill and filter.

Shake the filter or use low air pressure to remove dirt.
The filter can be cleaned several times in this manner
then it must be replaced.

Troubleshooting

If the fan does not run, check the fuse (See
ELECTRICAL SYSTEM on Page 70).

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S150 Bobcat Loader
Operation & Maintenance Manual

AIR CLEANER SERVICE

Replacing Filter Elements

Figure 124

It is important to change the air filter element only when
the Air Cleaner Icon in the right panel is ON (1)
[Figure 124] and you hear three beeps from the alarm.

Replace the inner filter every third time the outer filter is
replaced or as indicated.

Figure 125

Press and hold the LIGHT Button (1) [Figure 125] for two
seconds.

If the filter element needs replacement, the CODE
[01-17] (Air Filter Plugged) will show in the
HOURMETER / CODE DISPLAY (2) [Figure 125].

Outer Filter

Figure 126

Remove the wing nut and remove the dust cover (1)
[Figure 126].

Figure 127

Remove the wing nut and pull the outer filter element (1)
[Figure 127] out and discard.

NOTE: Make sure all sealing surfaces are free of dirt

and debris.

Install new filter. Push all the way in until it contacts the
base of the housing. Install wing nut.

Install the dust cover and the wing nut [Figure 126].

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B-15551

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