Bobcat Backhoe Service Repair Manual Instant Download #1

1
Bebcat
Service Manual Backhoe
(607 Backhoe) S/N 775002277 Below (709 Backhoe)
S/N 270007244 Below (709FDS Backhoe) S/N
584101443 Below (725S Backhoe) S/N 401500101
Above (730S Backhoe) S/N 780000101 Above (811
Backhoe) S/N 630000101 Above (835S Backhoe) S/N
785000101 Above (8709 Backhoe) S/N 880000101
Above (905B Backhoe) S/N 580000101 Above (907
Backhoe) S/N 195600101 Above
(909 Backhoe) S/N 113800101 Above (911 Backhoe)
S/N 046100101 Above (911B Backhoe) S/N
160800101 Above (913 Backhoe) S/N 370000101
Above (914B Backhoe) S/N 058900101 Above (914B
Extendable Backhoe) (923S Backhoe) S/N 190000101
Above (923SA Backhoe) S/N 320000101 Above
(937S Backhoe) S/N 120000101 Above
Dealer Copy -- Not for Resale
Printed in U.S.A.
6 Bobcat Company 2013
6ßß0622 (4-13)
\ of 254
2
MAINTENANCE SAFETY Instructions are necessary
before operating or servicing machine. Read and
understand the Operation Maintenance Manual,
Operator's Handbook and signs (decals) on
machine. Follow warnings and instructions in the
manuals when making repairs, adjustments or
servicing. Check for correct function after
adjustments, repairs or service. Untrained
operators and failure to follow instructions can
cause injury or death. W-2003-0807

Safety Alert Symbol This symbol with a warning
statement, means Warning, be alert! Your safety
is involved! Carefully read the message that
follows.
CORRECT P-90216
Dealer Copy -- Not for Resale
Never service attachments / implements
without instructions. See Operation Maintenance
Manual and Attachment / Implement Service
Manual. Cleaning and maintenance are required
daily. Never service or adjust attachment /
implement with the engine running unless
inGtructed to do so in manual. Always lower the
attachment / implement to the ground before
lubricating or servicing. Avoid contact with
leaking hydraulic fluid or diesel fuel under
presGure. It can penetrate skin or eyes. Stop,
cool and clean engine of flammable materials
before checking fluids. Keep body, loose objects
and clothing away from moving parts, electrical
contactG, hot partG and exhaust. Safety glasGes
are needed for eye protection from electrical
arcs, battery acid, compreGGed springG, fluids
under pressure and flying debris or when tools
are used. Use eye protection approved for type of
welding.
MSW30-0409
1-1
Backhoe Service Manual
3 of 254
3
CONTENTS SAFETY AND MAINTENANCE
.............................................
10-01 HYDRAULIC SYSTEM ..........................
.......................... 20-01 MAINFRAME
..................................................
......... 30-01 SPECIFICATIONS ...................
.................................
SPEC-01 ALPHABETICAL INDEX .......................
.........................INDEX-01
Resale
- O
Dealer Copy
Backhoe Service Manual
5of2f4
1-3
4
FOREWORD SERIAL NUMBER LOCATION
................................................
1-7 Attachment Serial Number .....................
........................... 1-7 DELIVERY REPORT
..................................................
..... 1-8 ATTACHMENT IDENTIFICATION
..............................................
1-9 (905B) Backhoe ..............................
.......................... 1-9 (907) Backhoe
..................................................
....... 1-10 (909 And 911) Backhoe
.................................................
1-11 (607, 709 And 709FDS) Backhoe
.......................................... 1-12 (8
11) Backhoe ......................................
................... 1-14 (8709) Backhoe
..................................................
...... 1-15 (913) Backhoe ........................
................................. 1-16 (7255,
835S, 923, 9235 And 923SA) Backhoe ...............
................ 1-17
(7305) Backhoe (911B) Backhoe (914B) Backhoe
(9375) Backhoe
..................................................
..... 1-18 .......................................
................ 1-19 ............................
........................... 1-20 .................
...................................... 1-21
Resale
FEATURES AND ACCESSORIES Options And Accessories
1-22 1-22
- O
Dealer Copy
1-5
Backhoe Service Manual
7 of 254
5
https//www.ebooklibonline.com Hello dear
friend! Thank you very much for reading. Enter
the link into your browser. The full manual is
available for immediate download. https//www.ebo
oklibonline.com
6
SERIAL NUMBER LOCATION
Figure 4
725S
Attachment Serial Number
Figure 1
905B
Always use the serial number Figure 1 through
Figure 4 of the Bobcat backhoe when requesting
service information or when ordering parts. Early
or later models (identification made by serial
number) may use different parts, or it may be
necessary to use a different procedure in doing a
specific service operation.
Figure 2
607, 709, 709FDS, 811 And 8709
Dealer Copy -- Not for Resale
p1o81e1
Figure 3 730S And 835S
1-7
Backhoe Service Manual
9 of 254
7
DELIVERY REPORT Figure 5
The delivery report Figure 5 must be completed
by the dealer and signed by the owner or operator
when the Bobcat plate compactor is delivered. An
explanation of the form must be given to the
owner.
Resale
- O
Dealer Copy
1-8
Backhoe Service Manual
10 of 254
8
ATTACHMENT IDENTIFICATION (905B) Backhoe
CONTROL LEVERS
ARM CYLINDER
BUCKET CYLINDER
BOOM CYLINDER
Dealer Copy -- Not for Resale
HYDRAULIC HOSES
ARM
BOOM
STABILIZER
BUCKET
N 7270
1-9
Backhoe Service Manual
\ 1 of 254
9
ATTACHMENT IDENTIFICATION (CONT'D) (907) Backhoe
CONTROL LEVERS
SEAT
ARM CYLINDER
HYDRAULIC HOSES
BOOM CYLINDER
Dealer Copy -- Not for Resale
STEP
BUCKET CYLINDER
ARM
BOOM
SWING CYLINDER
STABILIZER
BUCKET
271
Backhoe Service Manual
12 of 254
1-10
10
ATTACHMENT IDENTIFICATION (CONT'D) (909 And 911)
Backhoe
CONTROL LEVERS SEAT
ARM CYLINDER HYDRAULIC HOSES
MOUNTING COUPLER
BOOM CYLINDER
Dealer Copy -- Not for Resale
BOB-TACH MOUNTING FRAME
ARM
BUCKET CYLINDER
BOOM
SWING CYLINDER
STABILIZER
BUCKET
N 7385
t 3 of 254
1-11
Backhoe Service Manual
11
ATTACHMENT IDENTIFICATION (CONT'D) (607, 709 And
709FDS) Backhoe EQUIPPED WITH TELESCOPING
STABILIZERS
SEAT
HYDRAULIC CONTROLS
ARM CYLINDER
GRAB HANDLE
BOOM
BUCKET CYLINDER
LOCK LEVER
Dealer Copy -- Not for Resale
MOUNTING PINS
ARM
X- CHANGE (If Equipped)
STEP
BOOM CYLINDER
BOOM TRANSPORT LOCK PIN
SWING CYLINDER
STABILIZER
SWING FRAME
SAFETY CHAIN
BUCXET
B 14240
Backhoe Service Manual
14 of 254
12
ATTACHMENT IDENTIFICATION (CONT'D) (607, 709 And
709FDS) Backhoe (Cont'd)
EQUIPPED WITH OUTRIGGER STABILIZERS
SEAT
HYDRAULIC CONTROLS
ARM CYLINDER
BOOM
GRAB HANDLE
LOCK LEVER
Dealer Copy -- Not for Resale
BUCKET CYLINDER
MOUNTING PINS
ARM
STEP
X- CHANGE (If Equipped)
STABILIZER
BOOM TRANSPORT LOCK PIN
BOOM CYLINDER
SWING CYLINDER
SWING FRAME
SAFETY CHAIN
BUCKET
B 14364
1-13
Backhoe Service Manual
15 of 254
13
ATTACHMENT IDENTIFICATION (CONT'D) (811) Backhoe
SEAT
HYDRAULIC CONTROLS
ARM CYLINDER
GRAB HANDLE
BOOM
LOCK LEVER
BUCKET CYLINDER
Dealer Copy -- Not for Resale
MOUNTING PINS
ARM
STEP
X- CHANGE (If Equipped)
BOOM TRANSPORT LOCK PIN
BOOM CYLINDER
STABILIZER
SWING CYLINDER
SWING FRAME
SAFETY CHAIN
BUCKET
B 1436
16 of 254
1-14
Backhoe Service Manual
14
ATTACHMENT IDENTIFICATION (CONT'D) (8709) Backhoe
HYDRAULIC CONTROLS
SEAT
ARM CYLINDER
GRAB HANDLE
BOOM
LOCK LEVER
BUCKET CYLINDER
Dealer Copy -- Not for Resale
MOUNTING PINS
ARM
STEP
X- CHANGE (If Equipped)
BOOM TRANSPORT LOCK PIN
BOOM CYLINDER
STABILIZER
SWING FRAME
SWING CYLINDER
SAFETY CHAIN
BUCKET
1-15
Backhoe Service Manual
\ 7 of 254
15
ATTACHMENT IDENTIFICATION (CONT'D) (913) Backhoe
ARM CYLINDER
HYDRAULIC CONTROLS
BUCKET CYLINDER
SEAT
BOOM CYLINDER
Dealer Copy -- Not for Resale
UPPER MOUNTING ARMS
ARM
BOOM
SWING CYLINDER
BUCKET
LOWER MOUNTING ARMS
STEP
STABILIZER
B 142
1-16
Backhoe Service Manual
t8 of 254
16
ATTACHMENT IDENTIFICATION (CONT'D) (725S, 835S,
923, 923S And 923SA) Backhoe
ARM CYLINDER
HYDRAULIC CONTROLS
SWING CYLINDERS
MOUNTING COUPLER
ARM
Dealer Copy -- Not for Resale
BUCKET CYLINDER
BOOM
X-CHANGE
BOOM LOCKING IN
STABILIZER
BUCKET
SWING FRAME
NA 143
Backhoe Service Manual
t9 of 254
1-17
17
ATTACHMENT IDENTIFICATION (CONT'D) (730S) Backhoe
HYDRAULIC CONTROLS
ARM CYLINDER
BUCXET CYLINDER
Dealer Copy -- Not for Resale
MOUNTING COUPLER
ARM
BOOM
X-CHANGET
BOOM LOCKING PIN
SWING CYLINDER
BUCKET
SWING FRAME
STABILIZER
B 14262
20 of 254
1-18
Backhoe Service Manual
18
ATTACHMENT IDENTIFICATION (CONT'D) (911B) Backhoe
ARM
BUCKET CYLINDER
ARM CYLINDER
Dealer Copy -- Not for Resale
HYDRAULIC CONTROLS
BUCKET BOOM BUCKET CYLINDER
BOOM LOCKING PIN SWING CYLINDER
STABILIZER
B 12625
1-19
Backhoe Service Manual
21 of 254
19
ATTACHMENT IDENTIFICATION (CONT'D) (914B) Backhoe
ARM
ARM CYLINDER
BUCKET CYLINDER
BOOM CYLINDER
Dealer Copy -- Not for Resale
HYDRAULIC CONTROLS
BOOM BUCKET
BOOM LOCKING PIN
SWING CYLINDER
STABILIZER
B 122
Backhoe Service Manual
22 of 254
1-20
20
ATTACHMENT IDENTIFICATION (CONT'D) (937S) Backhoe
ARM CYLINDER
BUCKET CYLINDER
HYDRAULIC CONTROLS
Dealer Copy -- Not for Resale
ARM
BOOM CYLINDER
BUCKET
BOOM LOCKING PIN SWING FRAME LOCKING PIN SWING
CYLINDER
STABILIZER
B 12
1-21
Backhoe Service Manual
22 of 254
21
FEATURES AND ACCESSORIES
725S Buckets Avai/ab/e

• 584 mm (23 in)
• 762 mm (30 in)
• 1016 mm (40 in)
• 1143 mm (45 in)
• 1270 mm (50 in)

Options And Accessories
Rear Stabilisers
Figure 6

• 607 Pin On Buckets
• 305 mm (12 in)
• 406 mm (16 in)
• 508 mm (20 in)
• 610 mm (24 in)
• 607 X-Change Buckets

• 330 mm (13 in)
• 406 mm (16 in)
• 508 mm (20 in)
• 610 mm (24 in)
• 762 mm (30 in)

P-88125
Optional rear stabilizers are available for your
model loader with the backhoe attachment Figure
6. Increase your backhoe performance and
increase your versatility in a wide range of jobs
with a set of frame mounted rear stabilizers.
Not for Resale
709 Pin On Buckets 305 mm (12 in)

• 406 mm (16 in)
• 508 mm (20 in)
• 610 mm (24 in)
• 762 mm (30 in)
• 709 X-Change Buckets
• 330 mm (13 in)
• 406 mm (16 in)
• 508 mm (20 in)
• 610 mm (24 in)
• 762 mm (30 in)
• 914 mm (36 in)
• 991 mm (39 in)

Dealer Copy
1-22
Backhoe Service Manual
24 of 254
22
SAFETY AND MAINTENANCE TROUBLESHOOTING
..................................................
10-10-1 Chart ...................................
.......................... 10-10-1 INITIAL SETUP
..................................................
..... 10-20-1 Backhoe Mounting Kit
................................................
10-20-1 Safety Chain .............................
.......................... 10-20-1 DAILY
INSPECTION .......................................
............. 10-30-1 Attachment Mounting Frame
...........................................
10-30-1 Safety Chain .............................
.......................... 10-30-2 LUBRICATION
..................................................
...... 10-40-1 905B Backhoe ......................
................................ 10-40-1 907
Backhoe ..........................................
............. 10-40-1 909 Backhoe
..................................................
..... 10-40-2 911 Backhoe ........................
............................... 10-40-2 913 And
914 Backhoe ......................................
.......... 10-40-3
709FDS And 8709 Backhoe ........................................... 10-40-4
607 And 709 Backhoe ... 10-40-5
811 Backhoe ... ..... 10-40-6
725S And 730S Backhoe 10-40-7
835S Backhoe .......... . 10-40-8
923S And 923SA Backhoe 10-40-10
Dealer Copy -- Not for Resale
ATTACHMENT STORAGE AND RETURN TO SERVICE Storage
. Return To Service
10-50-1 10-50-1 10-50-1
CONTROL VALVE ...... ....... ......
10-60-1 10-60-1
Checking The Main Relief Valve On The Backhoe
Checking The Port Relief Valve On The
Backhoe ..........................
10-60-2 HYDRAULIC CYLINDERS ......................
......................... 10-70-1 Removing Air
From The Swing Cylinder ..........................
........ 10-70-1
10-01
Backhoe Service Manual
25 of 254
23
TROUBLESHOOTING Chart
Instructions are necessary before operating or
servicing machine. Read and understand the
Operation Maintenance I\/Ianual, Operator's
Handbook and signs (decals) on machine. Follow
warnings and instructions in the manuals when
making repairs, adjustments or servicing. Check
for correct function after adjustments, repairs
or service. Untrained operators and failure to
follow instructions can cause injury or
death. W-20qg-gg0y

If the attachment is not working correctly, check
the hydraulic system of the machine thoroughly
before making any repairs on the attachment.
Attachment problems can be affected by a
hydraulic system that is not operating to
specifications. Connect a flow meter to the
machine to check the hydraulic pump output,
relief valve setting and tube lines to check flow
and pressure. (See the machine's Service Manual
for the correct procedure to connect the flow
meter.) Use the following troubleshooting chart
to locate and correct problems which most often
occur with the attachment.
PROBLEM CAUSE CORRECTION
Loss of hydraulic action. The auxiliary control on the loader is not engaged. Engage the auxiliary control. (See the Loader Operation Maintenance Manual).
Loss of hydraulic action. The male and female quick couplers on the backhoe hoses are not installed on the correct hoses. Reverse the quick couplers on the hydraulic hoses of the backhoe.
Loss of hydraulic action. One coupler is not fully connected. Connect the coupler.
Loss of hydraulic action. Fluid level in hydraulic system is low. Add fluid of the correct type.
Hydraulic action is not smooth. Hydraulic fluid level is low. Add fluid of the correct type.
Hydraulic action is not smooth. Air in the hydraulic system. Operate all the cylinders (except the swing cylinder) as far as possible both ways and hold the controls for several seconds after the cylinders reached the end of the stroke. May be a loader problem (see loader Service Manual).
No cushion in swing cylinder. (905B does not apply) Air in the cylinder caused by a faulty swing cylinder. Repair as needed. Remove air from the cylinder. Stroke cylinder in both directions.
Swing chain breaking (905 Only) Not adjusted correctly. Adjust the chain. (See Adjustment on Page 30-10-1.).
Swing chain breaking (905 Only) Operating the backhoe at too high throttle setting. Operate at lower throttle setting.
Swing chain breaking (905 Only) Boom swings too fast. Install a 1,5 mm (0.060 in) orifice. See the hydraulic flowchart for orifice location.
Swing chain breaking (905 Only) Using the wrong type connector link. Use only SP high strength links as replacement. Use genuine Bobcat parts only.
Mounting pins not extending or retracting correctly (Pin mounted backhoes only 911, 913, 914). Wire connector is loose. Check connections and repair if necessary.
Mounting pins retract but do not extend (Pin mounted backhoe only 911, 913, 914). Solenoid valve sticking due to contamination. Disassemble and flush valve and parts.
Mounting pins retract but do not extend (Pin mounted backhoe only 911, 913, 914). Pin misaligned or interference. Align the pins or remove interference.
Mounting pins retract but do not extend (Pin mounted backhoe only 911, 913, 914). Lack of lubrication. Lubricate as needed.
Not for Resale
Dealer Copy
10-10-1
Backhoe Service Manual
27 of 254
24
TROUBLESHOOTING (CONT'D) The loader hydraulic
system must be working properly for the
attachments to operate as designed. Bobcat
Fluid (P/N 6563328). If fluid is not available,
use 10W-30 / 10W-40 Class SE Motor Oil for
temperature above - 18C (0F), 5W-30 Motor Oil
for temperatures below -18C (0F).
Resale
Not
Dealer Copy
28 of 254
10102
Backhoe Service Manual
25
INITIAL SETUP
Safety Chain
Backhoe Mounting Kit
Safety chain must be installed on the following
backhoes 607, 709, 709FDS, 8709, and 811. (See
Service Letter dated 9, October 1997 for serial
numbers effected.)
Figure 10-20-1
725S
Figure 10-20-3
P105458
B-14688
Install the required backhoe mounting kit (Item
1) Figure 10-20-1. Additional kits may be
required. See your Bobcat dealer for additional
kits.
Use the reference number in drawing and table
below to locate the position to drill one 10 mm
(0,406 in) hole (Item 1) Figure 10-20-3 in the
backhoe mounting frame.
Figure 10-20-2
607, 709 And 709FDS
NOTE The hole location is determined by model.
Use the correct location for each model.
REF. MODEL 811 MODEL 607, 709, 709FDS, 8709
2 38 mm (1.5 in) 44 mm (1.75 in)
3 127 mm (5.0 in) 64 mm (2.50 in)
C Push the hoses forward and restrain them.
Mark the location. Drill the Hole. N-18722 Inst
all the required with a backhoe mounting kit
(Item 1) Figure 10-20-2. Additional kits may be
required. See your Bobcat dealer for additional
kits
10-20-1
Backhoe Service Manual
29 of 254
26
SAFETY CHAIN (CONT'D)
Figure 10-20-6
Figure 10-20-4
Decal
Bolt Through Third Link
Warning Decal
B 14 86
Waeher (811 only) B-14990
Clean the back of the seat. Install the Attaching
And Removing The Backhoe decal as shown in
drawing Figure 10-20-6. Use decal (P/N 6714916)
for model 8709 and decal (P/N 6714915) for the
other models.
Install the guide, safety chain and hitch pin
wire to the backhoe frame with the bolt, washers
and nut as shown in drawing Figure 10-20-4.
Clean the mounting frame. Install the Warning
decal (P/N 6714911) as shown in drawing Figure
10-20-6.
The chain must be bolted through the third linh
in the chain as shown. Position the long end of
the guide to the front as shown.
Dealer Copy -- Not for Resale
IMPORTANT
IMPORTANT
Install a bolt below the chain guide, to act as a
stop on the 607, 709FDS, 8709 backhoe
mounting frames. 1-2177-0698 See Service
Letter dated 10, November 1997 for backhoe
serial numbers effected.
Use the guide on models 607, 809, 709FDS, 8709.
Use the washer on model 811 only. Po not use the
1-2176-0698
Clean the front of the mounting frame.
Remove the mounting bolt, latch pin wire, chain
and guide.
Install the Warning decal (P/N 6714920) as shown
in drawing Figure 10-20-5.
Backhoe Service Manual
1020-2
30 of 254
27
Suggest If the above button click is invalid.
Please download this document first, and then
click the above link to download the complete
manual. Thank you so much for reading
28
SAFETY CHAIN (CONT'D)
Figure 10-20-8 Guide is Horizontal to Bottom of
Backhoe Frame
Figure 10-20-7
Boom Swing Stop
Add Bolt
L t h Pin
P10785
B-14988
Reinstall the chain, guide, latch pin wire and
mounting bolt.
Use the reference number in the drawing and table
below to mark the location and drill one 10 mm
(0.40 in) hole (Item 1) Figure 10-20-7 in the
backhoe mounting frame.
NoTE The chain must be bolted through the third
link in the chain.
Ref. 2 - 16,5 mm (0.65 in) Ref. 3 - 19,0 mm (0.75
in) Install a bolt (P/N 1C612) and nut (P/N 85D6)
in the new hole and tighten.
Position the guide horizontal to the bottom of
the backhoe frame Figure 10-20-8.
NOTE The new bolt is a stop for the guide. The
edge EN of the guide must rest above the new bolt.
Not
Dealer Copy
10-20-3
Backhoe Service Manual
31 of 254
29
DAILY INSPECTION
Figure 10-30-3
725S
Attachment Mounting Frame
Figure 10-30-1
905B
P105458
Check the condition of the two mounting balls
(Item 1). Check the eight nuts and bolts (Item 2)
Figure 10-30-3 for loose or missing hardware.
Bolt torque is 260 Nm (190 ft-lb).
N-23825
Figure 10-30-2
Figure 10-30-4
725S
725S
P105462
Inspect the Bob-Tach wedge mounts (Item 1),
mounting flange (Item 2) Figure 10-30-1 or
Figure 10-30-2 EtFld all welds on the backhoe
for wear and damage each time the backhoe is
removed from the machine.
Check the condition of the two backhoe mounting
couplers (Item 1) Figure 10-30-4.
Frequently inspect the backhoe to ensure that
all components are secure and that all bolts and
nuts are thoroughly tightened.
10-30-1
Backhoe Service Manual
32 of 254
30
https//www.ebooklibonline.com Hello dear
friend! Thank you very much for reading. Enter
the link into your browser. The full manual is
available for immediate download. https//www.ebo
oklibonline.com