Amerequip 8600 Backhoe User Manual

THE TRACTOR AND/OR LOADER (IF EQUIPPED)

Read the tractor and/or loader operator’s manual to learn how to operate your tractor and/or loader safely. Failure to do so could result in serious injury or death and equipment damage.

SAFETY DECALS

The safety of the operator was a prime consideration in the design of the backhoe. Proper shielding, convenient controls, simple adjustments and other safety features have been built into this implement. The following decals

are located on the backhoe. Keep decals clean and replace them immediately if they are missing.

ontact your dealer or Amerequip for replacements.

Location: Left Side of Control Tower

Location: Right Side of Control T

Location: Left Side Toe Shield Area

ower

Location: T

oe Shield Area

Location: Right Side of Control Tower

Safety Swing Lock Position

Dipper-Stick

Bucket

Boom

Boom Safety Lock Position

Mainframe

Stabilizer Cylinder

Stabilizer

Figure 1

The speed at which the backhoe operates is partially dependent on engine RPM. Use a moderate engine speed to start and increase it as your experience permits. Refer to “DIMENSIONS AND SPECIFICATIONS” on Page 44 for hydraulic flow volume requirements. When powering from tractor systems with higher out put, reduce engine RPM to obtain acceptable backhoe operating speed.

Figure 2

Control Handles

Boom Swing

Bucket

Crowd Bucket

Left Hand Stabilizer

Right Hand Stabilizer

Figure 3 Safety Locks

Swing Safety Lock

POSITION ONLY

Boom Safety Lock

OPERATING THE BACKHOE

3. LOWER the stabilizers until the rear of the tractor is totally supported by them. NOTE: Rear tires should not come up off of the ground. See diagram

TRANSPORTING THE BACKHOE:

. USE accessory lights and SMV emblem when trav-

ling on highways.

e Before leaving backhoe operator’s seat, position the

ackhoe for transport by raising boom, crowding dip-

b perstick in, swinging to center and raising the stabilizers. ALWAYS engage safety locks as shown in Figs. 1 and 3 when transporting.

When transporting for long distances, periodically examine the backhoe and raise stabilizers and bucket back up to the full transport height. It is normal for the backhoe to slowly settle while being transported.

ig with the backhoe uphill whenever possible.

SERVICE

HYDRAULIC SYSTEM

On PTO pump contained systems, maintain the reservoir oil at the proper level by looking at the dipstick. The dipstick/breather cap is located directly behind the right hand foot pad on the backhoe. When checking oil level, the backhoe should be extended to full reach with the bucket rolled back and resting on the ground. ders are retracted except for the boom cylinder. Do not

All cylin

Periodically, check to be sure all bolts and nuts are tight. See torque chart, page 27.

LUBRICATION

Lower stabilizers to the ground, extend dipperstick and bucket and lower boom so bucket rests on the ground as shown in Figure 6. Refer to these illustrations for the location of all grease fittings.

*IMPORTANT: Before greasing boom to swing frame pivot (*) shown in Figure 6, raise boom and install boom safety lock pin shown in Figure 1.

The following locations should be oiled with SAE30 oil:

A. Stabilizer Pivot Pins B. Control Handle Linkage C. Seat Bracket Pivot

IMPORTANT: Avoid excessive greasing. Dirt collects on exposed grease and increases wear greatly. After greasing, wipe off excessive grease from fittings.

Figure 6 - Lubrication Points

Figure 7

REMOVAL FROM TRACTOR - STORAGE

Backhoe Shown Partially Extended

Backhoe Fully Extended

Blocking For Support

3. Raise the backhoe operator’s seat until it’s in the raised position.

The backhoe is supplied with flip-over stabilizer pads

s standard equipment. They are suitable for most

a backhoe work and generally are all that is ever required. However, street pad kits are available as options. This kit bolts to the standard pads and in-

rease the versatility of the backhoe. See Figure 8.

Figure 8

HYDRAULIC TROUBLE SHOOTING

24.Relief valve setting in backhoe control valve too low or defective - relief pressure will have to be checked and corrections made. Backhoe system pressure is 2400 psi. Relief valve may need cleaning and overhauling, or entire cartridge must be replaced. See item 30 at the end.

Overload relief valve in the control valve stuck

open or malfunctioning - clean relief carefully but do not disturb its pressure setting as it cannot be field calibrated, or replace cartridge. See item 30 at the end.

26.Worn control valve - replace the control valve.

Figure 9

Figure 10

Figure 10.

- Figure 10

Reposition stabilizer cylinders from their shipping configuration (See Fig. 11), by assembling them into the

Mainframe, using pins and hardware provided. Be sure cylinder ports are pointed upward and hoses are routed above the cylinder to mainframe pivot pin connection. See Fig. 12.

2. Support boom(A) and dipperstick(B) with hoist and remove boom transport lock pin. Lower boom and manually extend dipperstick until it rests on ground. Move control handle to "BOOM DOWN" position as

. Remove plastic bag containing bucket pins from

3 backhoe. Attach bucket (D) to dipperstick using one pin, two bolts, nuts, lockwashers, pin retainers and washers as needed to take up gap under pin retainers.

. Attach bucket link (E) to bucket, using same hard-

4 ware as listed for step #3.

. Reposition hoist to backhoe to prevent tipping.

5 Remove all remaining strapping and attach stabilizers (F) to mainframe (G) using pins and hardware assem-

Figure 11 Figure 12

Figure 13

ATTACHING KIT INSTRUCTIONS

3-POINT HITCH LINKAGE & HYDRAULIC HOOK-UP

TO TRACTOR HYDRAULIC SYSTEMS

ounting and hydraulic kits may include two hoses

M which can be used in connecting the backhoe control valve to the tractor hydraulic system. Additional hydraulic components or kits will be required to complete the hook-up to the tractor hydraulic system. Refer to “Hydraulic Hook-up” section for further information. Pump and reservoir kits are available as options.

Figure 13.

Figure 13

Figure 14

HYDRAULIC HOOK-UP

The hook-up of the Backhoe to the closed-center system requires more than connecting it to the remote couplers. The required devices are:

Figure 17

Figure 18

PTO PUMP AND RESERVOIR KIT (Optional)

General Description

The PTO Pump Kit consists of those parts required to power the backhoe from the tractor’s PTO shaft. It includes the PTO pump and adapter, reservoir, filtration system, hydraulic hoses and fittings. In addition, it includes a pump torque arm which attaches to the tractor’s lower link and keeps the pump from turning with the PTO shaft.

Note: The speed of the backhoe operation increases as PTO speed increases.

Assembly

Note: When installing hoses and fittings always use thread sealant in permanent connections. Do not use thread sealant in union ends of adapters. Do not overtighten fittings - they can split or expand, causing leakage

1. Assemble filler tube (1) and breather cap with dip-

stick (2) to reservoir (3) as shown in Figure 19.

2. Assemble reservoir (3) to backhoe:

Use 5/16 x 3/4” bolt (39), flat washer (36), and lockwashers (37) as shown in Figure 19.

3. Assemble suction hose (4) to reservoir (3) using

street elbow (5), hose nipple (6), and hose clamp (7) as shown in Figure 19.

4. Preassembly of filter base and element (8):

Assemble street elbow (5), pipe bushing (9), and 38” hose (12) to Inlet port on filter base (8) as shown in Figure 19. Assemble pipe bushing (9) and adapter union (28) to Outlet port on filter base (8) as shown in Figure 19.

5. Assemble filter base and element (8) to Left Hand

Foot Pad on backhoe using 1/4 x 3/4” bolt (13), lock washer (14), and flat washer (15) as shown in Figure

19.

9. Slide PTO adapter (23) onto pump shaft allowing 1/8” between adapter and pump face and secure with two setscrews (24), as shown in Figure 19. Lock with two nuts (25).

0. Assemble suction hose (4) to pump (19), using

1 pipe adapter (26), street elbow (5), hose nipple (6), and hose clamp (7) as shown in Figure 19.

Set-up requires a pipe bushing (27) between the pipe adapter and the street elbow.

NOTE: For Pump and Reservoir installation, pressure line is routed under the reservoir tank. To ease installation of pressure line, 90 degree hydraulic fitting in control valve “IN” port can be removed. Attach 90 degree fitting to hose, reinstall fitting and proceed as noted below.

Connect pressure line between valve “IN” port fitting and pump, using adapter union (28) and hose (12) as shown in Figure

19. Set-up requires a pipe adapter

(29) between the pump and adapter union.

IMPORTANT - If hoses are hooked up incorrectly, serious damage to the backhoe valve will result.

11. NOTE: Initial fill up of the Reservoir Tank will require 4ﬁ gallons of fluid. Fill reservoir with recommended fluid to correct level, referring to Service Section in the Backhoe Manual.

12. Mount the backhoe to the tractor at this time following the procedure in the Attaching Kit Manual.

13. Slide complete pump assembly onto the PTO shaft and secure with lock pin on PTO adapter. Be sure kinks do not develop in any of the lines. Suction hose can be shortened to prevent this problem.

CAUTION

DO NOT REMOVE THE TRACTOR PTO GUARD

NOTE -

Change filter element (16) every time oil is

changed.

6. Connect return line hose (12) to “OUT” port on backhoe control valve. Note - Backhoe return line hose is routed under reservoir tank.

7. Complete connection between filter base (8) Out let port and reservoir (3) using 29” hose (17), pipe bushing (9), and street elbow (11) as shown in Figure

19.

8. Assemble torque arm (18) to pump (19), using hardware provided (20, 21, 22), as shown in Figure

19. Pump plate may have to be readjusted later.

14. Attach torque arm (18) to tractor’s lower link using hook-up chain (30), 3/8 x 2” bolt (31), washer (32), lockwasher (21), and nut (22), as shown in Figure 19.

orque arm (18) may be adjusted on pump (19) for

T proper fit-up to lower link if necessary.

IMPORT adapter, do not let the swing cylinders interfere

ANT - When mounting backhoe on the

with the backhoe pump, or the hydraulic lines become tangled in any part of the adapter during installation. Make sure both pressure and suction lines are free from kinks or twists to reduce back

up.

pressure and excessive heat

build

igure 19

PTO PUMP KIT PARTS BREAKDOWN

W702 8 1/2' BACKHOE

W702 8 1/2 Foot Backhoe

PTO Pump And Reservoir Kit

Index

Number Number

1 860296 Filler Tube 2 23067 Breather Cap with Dipstick 3 4 11026 Suction Hose 5 7975 Street Elbow,

6 7 14150 Hose Clamp - 1-1/16” to 2” 8 10375 Filter Base and Element 9 7987 Reducer - 3/4 NPTM x 1/2 NPTF

11 7974 Street Elbow

12 17538 Hydraulic Hose,

13 6740 14 8061 Lockwasher, 1/4 15 8146 Flat Washer, 1/4 16 10376 17 17519 Hydraulic Hose,

18 858135 Torque Arm 19 23072 Hydraulic Pump

Part

15526 Reservoir Tank

780833

Description

3/4 NPTM x 3/4 NPTF x 90 Hose Nipple

3/4 NPTM x 3/4 NPTF x 45°

1/2 NPTM x 1/2 NPTM x 38” long Bolt, 1/4 NC x 3/4"

Element Only ( Service Only)

1/2 NPTM x 1/2 NPTM x 29” long

Index Part

Number Number Description

20 7034 Bolt, 1/2 NF x 1-3/4” Gr. 5 21 8101 Lockwasher, 1/2 22 23 15093 PTO Adapter 24 8327 Setscrew, 5/16 NC x 3/4” Cup Point 25 7431 26

27 8015 Reducer, 1” NPTM x 3/4” NPTF 28 11129 Adapter Union,

30 851834 Hook-up Chain 31 6882 Bolt, 3/8 NC x 2-1/2” 32 33 8079 Lockwasher, 3/8 34 7451 Nut, 3/8 NC 36 8152 Flat Washer, 5/16 SAE 37 8071 Lockwasher, 5/16 39

7511 Nut, 1/2 NF

Nut, 5/16 NC

1216

11227 Reducer,

8156

6789 Bolt, 5/16 NF x 3/4”

Reducer, 1-5/8-12 SAE Str. Thrd. x 1” NPTF

1/2 NPTM x 1/2 NPTF x 90°

1-1/16-12 SAE Str. Thrd. x 1” NPTF

Flat Washer, 3/8

3-POINT MOUNT KIT PARTS BREAKDOWN

W701 FOR 8 1/2' BACKHOE

Index Part

Number Number Description

1 861755 RH Lower Link Weldment 2 3 861735 Adapter Weldment 4 5 6 7515 Locknut, 1/2 NF 7 8

9 6577 Bolt, Carriage 5/16 NC x 1" 10 8152 1 12 7431 Nut, 5/16 NC 13 6798 Bolt, 5/16 NC x 1-1/4" 18 775003 L-Pin 19 8582 Cotter Pin, 3/16 x 1-1/4" 20 8624 Wire Form Cotter #10 21 852198 22 860292 Upper Brace

861760 LH Lower Link W

7092 8173

50824 50825

8071

Bolt, 1/2 NF x 7-1/2" GR.5 Flat W

RH Floor Plate LH Floor Plate

Flat Washer, 5/16 SAE Lockwasher

Lower Link Cat. II Bushing (option)

asher

, 1/2 SAE

, 5/16

eldment

Index Part

Number Number Description

23 7273 Bolt, 3/4 NF x 7-1/2" Gr. 8 24 8121 Lockwasher, 3/4 25 8192 Flat Washer, 3/4 26 27 854528 Bushing (option)

28 750253

29 860291 Upper Bar 30 7260 Bolt, 3/4 NF x 4-1/2" Gr. 8 31 7250 Bolt, 3/4 NF x 2-1/4" Gr. 5 32 7270 Bolt, 3/4 NF x 6" Gr. 5 33 861753 Connector Plate 34 7034 Bolt, 1/2 NF x 1-3/4" Gr. 5 35 8101 Lockwasher, 1/2 36 7511 Nut, 1/2 NF 38 7093 Bolt, 1/2 NF x 8" Gr. 5

7569

Nut, 3/4 NF

1" O.D. x 13/16 I.D. x 1-5/8 Long Bushing (optional)

1" O.D. x 3/4 I.D. x 1-5/8 Long

W604 STREET PAD KIT

Index No. Part Number Description

1 7458 Locknut, 3/8 NC 2

12899

Street Pad - Rubber

REGULAR DUTY DEEP PROFILE BUCKET

Index Part

Number Number Description

1 W710 Regular Duty Deep Profile Bucket - 12" 2 13613 Tooth and Shank Assemblies for 12" Bucket 3 13617 Tooth Point Only for 12" Bucket

1 W711 Regular Duty Deep Profile Bucket - 18" 2 13613 Tooth and Shank Assemblies for 18" Bucket 3 13617 Tooth Point Only for 18" Bucket

1 W712 Regular Duty Deep Profile Bucket - 24" 2 13613 Tooth and Shank Assemblies for 24" Bucket 3 13617 Tooth Point Only for 24" Bucket

1 W713 Regular Duty Deep Profile Bucket - 36" 2 13613 Tooth and Shank Assemblies for 36" Bucket 3 13617 Tooth Point Only for 36" Bucket

1 W714 Regular Duty Deep Profile Bucket - 40" 2 13613 Tooth and Shank Assemblies for 40" Bucket 3 13617 Tooth Point Only for 40" Bucket

HEAVY DUTY DEEP PROFILE BUCKET

PARTS BREAKDOWN FOR 8 1/2' BACKHOES

Index Part

Number Number Description

1 W720 Heavy Duty Deep Profile Bucket - 14" 2 13626 Tooth and Shank Assemblies for 14" Bucket 3 13627 Tooth Point Only for 14" Bucket

1 W721 Heavy Duty Deep Profile Bucket - 18" 2 13626 Tooth and Shank Assemblies for 18" Bucket 3 13627 Tooth Point Only for 18" Bucket

1 W722 Heavy Duty Deep Profile Bucket - 24" 2 13626 Tooth and Shank Assemblies for 24" Bucket 3 13627 Tooth Point Only for 24" Bucket

1 W723 Heavy Duty Deep Profile Bucket - 36" 2 13626 Tooth and Shank Assemblies for 36" Bucket 3

1 W724 Heavy Duty Deep Profile Bucket - 40" 2 13626 Tooth and Shank Assemblies for 40" Bucket 3

13627

Tooth Point Only for 36" Bucket

Tooth Point Only for 40" Bucket

Bucket Data:

BUCKET WIDTH SAE STRUCK CAPACITY HEAPED CAPACITY SHIPPING WEIGHT

W710 12"

1.20 cu. ft.

1.53 cu. ft. W711 18" 1.84 cu. ft. 2.47 cu. ft. 101 lbs. W712 24" 2.53 cu. ft. 3.48 cu. ft. W713 36" 3.92 cu. ft. 5.50 cu. ft. 154 lbs. W714 40" 4.38 cu. ft. 6.17 cu. ft. 170 lbs.

W720 W721

14" 18"

1.14 cu. ft. 1.74 cu. ft. 106 lbs.

1.75 cu. ft.

2.68 cu. ft. 126 lbs. W722 24" 2.42 cu. ft. 3.71 cu. ft. 146 lbs. W723

36"

3.77 cu. ft.

5.76 cu. ft. W724 40" 4.22 cu. ft. 6.41 cu. ft. 207 lbs.

82 lbs.

17 lbs.

195 lbs.

333435

CONTROL TOWER AREA

STABILIZER LEG AREA

SWING SYSTEM AREA

BOOM, DIPPERSTICK, AND BUCKET AREA

HYDRAULIC PLUMBING

139

TO BOOM WELDMENT

140 74

HYDRAULIC PLUMBING

SWING

Buffer Seal

*Not available as a separate repair part - order Seal Repair Kit. IMPORTANT - Replace cylinder nut (1) any time nut must be removed, and torque to proper value shown.

Cylinder Data:

ON RETRACTED EXTENDED PIVOT PIN TYPE OF

PIST

CYLINDER *184 - BOOM 2

*184 - DIPPER

183 - BUCKET 2

DIA.

⁄2" 21" 31" 52" 11⁄4"1

⁄2"

⁄4" 18" 26" 44" 11⁄4"11⁄2" BASE END DA

182 - STABILIZER 21⁄2"15

186 - SWING