Bobcat S150. Manual - part 13

S150 Bobcat Loader

35

Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS (CONT’D)

Power Bob-Tach™ - Removing The Bucket Or
Attachment

WARNING

Bob-Tach wedges must extend through the holes in
attachment. Levers must be fully down and locked.
Failure to secure wedges can allow attachment to
come off and cause injury or death.

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Lower the lift arms and put the attachment flat on the
ground.

If the attachment is hydraulically controlled, lower or
close the hydraulic equipment before disconnecting the
quick couplers. (See Releasing Hydraulic Pressure
(Loader and Attachment) on Page 18.)

WARNING

Before you leave the operator’s seat:
•

Lower the lift arms, put the attachment flat on the
ground.

•

Stop the engine.

•

Engage the parking brake.

•

Raise seat bar.

•

(Foot Pedal Controls) Move pedals until both
lock.

•

(Advanced Control System - ACS) Move the
hydraulic controls to the NEUTRAL POSITION to
make sure that both lift and tilt functions are
deactivated.

The seat bar system must deactivate the lift and
tilt control functions when the seat bar is up.
Service the system if hand controls do not
deactivate. 

•

(Selectable Joystick Control - SJC) Move the
joysticks to the NEUTRAL POSITION to make
sure that travel and hydraulic functions are
deactivated.

The seat bar system must deactivate these
functions when the seat bar is up. Service the
system if controls do not deactivate.

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Figure 72

Push and hold the BOB-TACH “WEDGES UP” Switch
(Front Accessory Panel) (1) [Figure 72] until the wedges
are fully raised.

Tilt the Bob-Tach forward.

Figure 73

Move the loader backward, away from the bucket or
attachment [Figure 73].

NOTE: The Power Bob-Tach system has continuous

pressurized hydraulic oil to keep the wedges
in the engaged position and prevent
attachment disengagement. Because the
wedges can slowly lower, the operator may
need to reactivate the switch (WEDGES UP)
before installing an attachment to be sure
both wedges are fully raised before installing
the attachment.

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S150 Bobcat Loader
Operation & Maintenance Manual

36

OPERATING PROCEDURE

Operating With A Full Bucket

When operating on a public road or highway, always
follow local regulations. 
For example: Slow Moving Vehicle Sign or direction
signals may be required.

Always warm the engine and hydrostatic system before
operating the loader.

IMPORTANT

Machines warmed up with moderate engine speed
and light load have longer life.

I-2015-0284

Operate the loader with engine at full speed for maximum
horsepower. Move the steering levers only a small
amount to operate the loader slowly.

New operators must operate the loader in an open area
without bystanders. Operate the controls until the loader
can be handled at an efficient and safe rate for all
conditions of the work area.

Figure 74

Figure 75

With a full bucket, go up or down the slope with the heavy
end toward the top of the slope [Figure 74] and
[Figure 75].

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WITH BUCKET FULL

GOING UP SLOPE

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WITH BUCKET FULL

GOING DOWN SLOPE

S150 Bobcat Loader

37

Operation & Maintenance Manual

OPERATING PROCEDURE (CONT’D)

Operating With An Empty Bucket

Figure 76

Figure 77

With an empty bucket, go down or up the slope with the
heavy end toward the top of the slope [Figure 76] and
[Figure 77].

WARNING

AVOID INJURY OR DEATH

•

Keep the lift arms as low as possible.

•

Do not travel or turn with the lift arms up.

•

Turn on level ground.

•

Go up and down slopes, not across them.

•

Keep the heavy end of the machine uphill.

•

Do not overload the machine.

Failure to obey warnings can cause the machine to 
tip or roll over and cause injury or death.

W-2018-1187

Raise the bucket only high enough to avoid obstructions
on rough ground.

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WITH BUCKET EMPTY

GOING DOWN SLOPE

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WITH BUCKET EMPTY

GOING UP SLOPE

S150 Bobcat Loader
Operation & Maintenance Manual

38

OPERATING PROCEDURE (CONT’D)

Foot Pedal Machines

Filling The Bucket:

Figure 78

Figure 79

Lower the lift arms all the way (1) [Figure 78].

Tilt the bucket forward (2) [Figure 78] until the cutting
edge of the bucket is on the ground.

Drive slowly forward into the material. Tilt the bucket
backward (1) [Figure 79] all the way when the bucket is
full.

Drive backward away from the material.

WARNING

Load, unload and turn on flat level ground. Do not
exceed Rated Operating Capacity shown on sign
(decal) in cab. Failure to obey warnings can cause
the machine to tip or roll over and cause injury or
death.

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Emptying The Bucket:

Figure 80

Keep the bucket low when moving to the area where you
want to empty the bucket.

Raise the lift arms (1) [Figure 80]. Level the bucket (2)
[Figure 80] while raising the lift arms to help prevent
material from falling off the back of the bucket.

Drive forward slowly until the bucket is over the top of the
truck box or bin.

Empty the bucket (2) [Figure 80]. If all the material is
near the side of the truck or bin, use the bucket tilt to
move it to the other side.

WARNING

Never dump over an obstruction, such as a post, that
can enter the operator cab. The machine could tip
forward and cause injury or death.

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