Loader Bobcat 853, 853H. Manual — part 5
OPERATOR CAB (Cont’d)
Lowering The Operator Cab
NOTE: Make sure the seat bar is fully raised or
lowered when lowering the cab.
Pull down on the bottom of the operator cab until it stops
at the latching mechanism.
Release the latching mechanism (Item 1) [A] and pull the
cab all the way down.
Install the plate and nut (Item 1) [B] (both sides).
Tighten the nuts to 40–50 ft.–lbs. (54–68 Nm) torque [B].
Emergency Exit
The front opening on the operator cab and rear window
provide exits.
To exit through the rear window, use the following
procedure:
Pull on the tag on the top of the rear window to remove the
rubber cord [C].
Push the rear window out of the rear of the operator cab.
Exit through the rear of the operator cab [D].
A
CD–15124
1
C
P–00660
D
P–00383
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853, 853H Loader
Service Manual
B
CD–15126
1
SEAT BAR RESTRAINT SYSTEM
Description
The seat bar restraint system has a pivoting seat bar with
arm rests and has spring loaded interlocks for the lift and
tilt control pedals.
The operator controls the use of the seat bar. The seat bar
in the down position helps to keep the operator in the seat.
The interlocks require the operator to lower the seat bar
in order to operate the foot pedal.
When the seat bar is up, the lift and tilt pedals are locked
when returned to the NEUTRAL POSITION.
Inspecting The Seat Bar
Sit in the seat and fasten the seat belt. Engage the
parking brake. Pull the seat bar all the way down. Start the
engine. Operate each foot pedal to check both the lift and
tilt functions. Raise the lift arms until the bucket is about
2 feet (600 mm) off the ground.
Raise the seat bar. Try to move each foot pedal. Pedals
must be firmly locked in neutral position. There must be
no motion of the lift arms or tilt (bucket) when the pedals
are pushed.
Pull the seat bar down, lower the lift arms. Operate the lift
pedals. While the lift arms are going up, raise the seat bar
and the lift arms should stop.
Lower the seat bar, lower the lift arms and place the
bucket flat on the ground. Stop the engine. Raise the seat
bar and operate the foot pedals to be sure that the pedals
are firmly locked in the neutral position. Unbuckle the seat
belt.
Maintaining The Seat Bar
See the SERVICE SCHEDULE, Page 1–3 for correct
service interval.
Clean any debris or dirt from the moving parts [A] & [B].
Inspect the linkage bolts and nuts for tightness. The
correct torque is 25–28 ft.–lbs. (34–38 Nm).
Use a general purpose grease to lubricate the seat bar
pivot points at each side of the cab [A].
If the seat bar system does not function correctly, check
for free movement of each linkage part. Check for
excessive wear. Adjust pedal control linkage.
Replace parts that are worn or damaged. Use only
genuine Melroe replacement parts.
AVOID INJURY OR DEATH
The seat bar system must lock the lift and tilt
control pedals in neutral when the seat bar is
up. Service the system if pedals do not lock
correctly.
W–2105–1285
A
P–00384
Clean &
Lubricate
853, 853H Loader
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B
P–01223
Clean
Pedal Lock
Shield
AIR CLEANER SERVICE
Replacing Filter Element
See the SERVICE SCHEDULE, Page 1–3 for the interval
to service the air cleaner system.
WITH CONDITION INDICATOR: Replace the large
(outer) filter element only when the red ring shows in the
window of the condition indicator (Item 1) [A].
NOTE: Before replacing the filter element, push the
button on the condition indicator (Item 2) [A].
Start the engine. If the red ring does not
show, do not replace the filter element.
Replace the inner filter every third time the outer filter is
replaced or when the red ring still shows in the indicator
window after the outer filter has been replaced.
WITH BOSS
®
OPTION: It is important to change the air
filter element only when the service codes (on the
BOSS
®
option instrument panel) shows the symbols
[AF.2] [B].
Service the air cleaner as follows:
Remove the dust cover wing nut (Item 1) [C].
Remove the dust cover.
A
CD–15118
2
1
C
CD–15117
1
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Service Manual
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MC–02042
AIR CLEANER SERVICE (Cont’d)
Replacing Filter Element (Cont’d)
Remove the wing nut (Item 1) [A] at the large air filter
element.
Remove the large filter element [B].
NOTE: Make sure all sealing surfaces are free of dirt
and debris.
1. Replace the inner filter element every third time the
outer filter is replaced.
2. If the service codes show symbols, Page 8–1,
during full engine speed, replace the inner filter
element only after the outer filter element has been
changed.
Install the new filter element and washer and tighten the
wing nut.
Check the air intake hose for damage. Check the air
cleaner housing for damage. Check to make sure all
connections are tight.
Inner Filter Element:
Only replace the inner filter element under the following
conditions:
Remove the inner filter wing nut (Item 1) [C] to remove the
filter element.
A
CD–15119
1
C
CD–15121
1
853, 853H Loader
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Service Manual
B
CD–15120
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