Installation Procedure for Installing a Blade on 574 Forwarders{6060} Caterpillar

Forwarders:

574 (S/N: 1FM1-UP)

Introduction

The following information details the procedures that are necessary in order to install a blade on 574 Forwarders.

Required Parts

Machine Preparation

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Illustration 1	g00877420

1. Park the machine and lower the machine to the ground as far as possible.

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Illustration 2	g00800993
Bogie Float Switches are located on the Right Side of the Cab.

2. Ensure that all wheels are in contact with the ground. Place the bogie float switches in the FLOAT position.

   Reference: Refer to the Operation and Maintenance Manual, SEBU7197, "Bogie Control" for the proper procedure.

3. Retract the extendable stick. Lower the grapple onto the bed.

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Illustration 3	g00800981
Operating Mode Switch on the Right Hand Control Unit

4. Press the operating mode switch so that the machine is in the ROADING MODE position. The boom will not operate.

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Illustration 4	g00811128
Direction Selector Switch on the Left Hand Control Unit

5. Place the direction selector switch in the NEUTRAL position.

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Illustration 5	g00658192
Parking Brake Switch

6. Place the parking brake switch in the ON position. The ladder will lower.

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Illustration 6	g00677507
Steering Frame Lock (LOCKED Position)

7. Install the steering frame lock with the two pins. Place blocks in front of the wheels and behind the wheels.

8. Stop the engine by turning the engine start switch key to the OFF position.

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Illustration 7	g00883012

9. Turn the secondary disconnect switch and the battery disconnect switch to the OFF position.

10. Make sure that all oil pressure is released in the system before you begin any work on the system.

Removal of the Bottom Guard and the Front Tires

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Illustration 8	g00877424
Bottom Guard

1. Remove the bottom guard.

   Reference: Refer to the Operation and Maintenance Manual, SEBU7197, "Bottom Guard Lowering" for the proper procedure.

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Illustration 9	g00882057

2. Place Tooling (A) under the front frame, as shown.

3. Use Tooling (A) to raise the front of the machine until the wheels are off the ground.

4. Remove the two front wheels on the front bogie axle.

   Reference: Refer to Disassembly and Assembly, RENR3033, "Wheel - Remove and Install" for the proper procedure.

Installation of the Blade Frame

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Personal injury or death can result from fumes, gases and ultraviolet rays from the weld arc. Welding can cause fumes, burn skin and produce ultraviolet rays. Keep your head out of the fumes. Use ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing area. Wear eye, ear and body protection before working. Protect yourself and others; read and understand this warning. Fumes and gases can be dangerous to your health. Ultraviolet rays from the weld arc can injure eyes and burn skin. Electric shock can cause death. Read and understand the manufacturer's instructions and your employer's safety practices. Do not touch live electrical parts. See "American National Standard Z49.1, Safety in Welding and Cutting" published by the American Welding Society. American Welding Society 2501 N.W. 7th Street Miami, Florida 33125 See "OSHA Safety and Health Standards, 29 CFR 1910", available from U.S. Department of Labor. U.S. Department of Labor Washington, D.C. 20210

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Personal injury can result from flame cutting or welding on painted areas. The effect of gasses from burned paint is a hazard to the person doing the cutting or welding. Do not flame cut or weld on painted areas.

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Illustration 10	g00877877
Left Side View of Front Frame (1) 215-1940 Frame (2) 215-1941 Frame (3) 215-1934 Bracket (Left Side) (4) 215-2262 Bracket (Right Side) (A) 141.4 mm (5.567 inch) (B) 72 ± 3 mm (2.835 ± 0.118 inch) (C) 6 mm (0.236 inch) (D) 12 ± 3 mm (0.472 ± 0.118 inch) (E) Only weld 30 mm (1.181 inch) (F) 518 mm (20.394 inch) (G) 6 mm (0.236 inch) (H) 1185.5 mm (46.673 inch)

1. Weld 215-1934 Bracket (3) on the left side of the front frame. Refer to Illustration 10.

2. Weld 215-2262 Bracket (4) on the right side of the front frame. Refer to Illustration 10.

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Illustration 11	g00878085

3. Install two 215-2319 Pins (8). Install 8T-4139 Bolts (9) and 8T-4223 Washers (10) in each pin.

4. Attach a hoist and a suitable lifting device to 215-2319 Pins (8) of 215-1941 Frame (2). Use the hoist to install 215-1941 Frame (2). The weight of the frame is approximately 186 kg (410 lb).

5. Secure 215-1941 Frame (2) to 215-1934 Bracket (3) and 215-2262 Bracket (4) with two 215-2319 Pins (7). Install 8T-4139 Bolts (5) and 8T-4223 Washers (6) in each pin.

6. Remove the lifting device, pins (8), bolts (9), and washers (10) .

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Illustration 12	g00878263

7. Attach a hoist and a suitable lifting device to 215-1940 Frame (1). Use the hoist to install 215-1940 Frame (1) onto 215-1941 Frame (2). The weight of the frame is approximately 190 kg (420 lb).

8. Install 213-9096 Pins (14) into 215-1940 Frame (1) and 215-1941 Frame (2) .

9. Install 8T-5001 Bolts (12) and 8T-4244 Nuts (13) through the ring of 213-9096 Pins (14). Attach 161-4722 Chains (11) to the ring of 213-9096 Pins (14) .

10. Install the two front wheels on the front bogie axle.

    Reference: Refer to Disassembly and Assembly, RENR3033, "Wheel - Remove and Install" for the proper procedure.

11. Remove Tooling (A) .

Installation of the Lines Group

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Illustration 13	g00878195
Left Side View

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Illustration 14	g00877837
View A-A (I) 100 mm (3.937 inch) (J) Radius 30 mm (1.181 inch) (K) 70 mm (2.756 inch)

1. Cut a hole in the left side of the front frame. Grind the edges of the hole smooth. Refer to Illustration 14.

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Illustration 15	g00878678
Left Side View (15) Cover plate (L) 22.5 mm (0.889 inch) (M) 30°

2. Bend the end of cover plate (15). Refer to Illustration 15.

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Illustration 16	g00878855
Right Side View (16) Cover plate (N) 90° (O) 19.5 mm (0.768 inch) (P) 78.8 mm (3.102 inch)

3. Bend the end of cover plate (16). Refer to Illustration 16.

4. Tilt the cab.

   Reference: Refer to the Operation and Maintenance Manual, SEBU7197, "Cab Tilting" for the proper procedure.

Note: Cleanliness is an important factor. Before the Removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

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NOTICE
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates.

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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.

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Illustration 17	g00878877

5. Remove bogie control valve (17) .

   Reference: Refer to Disassembly and Assembly, RENR3025, "Bogie Control Valve - Remove and Install" for the proper procedure.

6. Remove mounting bracket (18) .

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Illustration 18	g00878880
Mounting Bracket (18) Mounting bracket (Q) 112.5 mm (4.429 inch) (R) 95 mm (3.740 inch) (S) 47.5 mm (1.870 inch) (T) 10 mm (0.394 inch) (U) 109.5 mm (4.311 inch) (V) Radius 15 mm (0.591 inch) (W) 26 × 11 mm (1.024 × 0.433 inch)

7. Rework mounting bracket (18). Refer to Illustration 18 for rework procedures. Install mounting bracket (18).

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Illustration 19	g00878962

8. Install 216-7308 Plate (21) on mounting bracket (18) with three 157-0949 Flat Head Screws (19) and three 8T-4133 Nuts (20).

Note: Cleanliness is an important factor. Before the Disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

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Illustration 20	g00879210

9. Remove three nuts (23), three bolts (25), and inlet section (24) from bogie control valve (17) .

   Reference: For additional information, refer to Disassembly and Assembly, RENR3025, "Bogie Control Valve - Disassemble".

10. Install 217-1716 Control Valve (22), the new seals, inlet section (24), three new bolts (25), and three nuts (23) on bogie control valve (17) .

11. Tighten nuts (23) to a torque of 22 ± 5 N·m (16 ± 4 lb ft).

12. Install bogie control valve (17) on 216-7308 Plate (21) .

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Illustration 21	g00879046

13. Install 216-3971 Plate (27), bolts (28), and the washers on cover (26) that is located above the implement pump.

14. Install 149-2658 Solenoid Valve (31) in 8C-6162 Manifold (32). Install 6V-8633 Connectors (33), 3D-2824 O-Ring Seals (34), and 6V-8398 O-Ring Seals (35) in 8C-6162 Manifold (32) .

15. Install 8C-6162 Manifold (32), 8T-6466 Bolts (29), and 8T-4121 Washers (30) on 216-3971 Plate (27) .

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Illustration 22	g00879505

16. Install 216-4236 Blade Cylinder (39), two 215-2319 Pins (36), two 8T-4139 Bolts (37), and two 8T-4223 Washers (38). Repeat this Step on the other side of the blade frame.

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Illustration 23	g00879364

17. Install 7X-0871 Tee (40), 3J-1907 O-Ring Seal (41), 6V-3965 Fitting (42), 2M-9780 O-Ring Seal (43), and 6V-8624 Elbow (44) on each port of blade control valve (22).

18. Install 215-2323 Hose (45) .

19. Install 6V-8789 Tee (49) and 6V-8398 O-Ring Seal (50) on hoses (46) and (47) .

20. Install 215-2324 Hose (47) .

21. Install 216-2720 Hose (46) .

22. Install 6V-8632 Connector (58), 3K-0360 O-Ring Seal (57), and 7J-9108 O-Ring Seal (56) on each blade cylinder (39) .

23. Install 216-2723 Tube (54) and 216-2724 Tube (55) on the blade cylinders. Secure tubes (54) and (55) with 4V-1939 Clamp (59) and 164-0132 Clamp (60) .

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Illustration 24	g00879783
Left Side View of Front Frame

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Illustration 25	g00879801
Right Side View of Front Frame

24. Route hoses (48) and (52), as shown. Refer to Illustrations 24 and 25.

25. Install 216-2721 Hose (48) to the rod end of the blade cylinder. Install 216-2722 Hose (52) to tubes (54) and (55) .

26. Install 161-5103 Guard (53) on hoses (48) and (52) .

27. Install 161-5393 Belt (51) on the right blade cylinder in order to secure hoses (48) and (52) .

    Note: Use as many 161-5393 Belts (51) as needed in order to prevent wear on the hoses.

Hydraulic Schematic

Illustration 26	g00884662
(22) Blade control valve (24) Inlet section (31) Solenoid valve (blade float) (39) Blade cylinders (42) Pressure taps

Installation of the Controls for the Blade

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Illustration 27	g00879923
Location of Wiring Connectors

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Illustration 28	g00879979
Mounting bracket (X2 - X200) Wiring harnesses (X) Diameter 25 mm (0.984 inch) (Y) 20 mm (0.787 inch) (Z) 5.5 mm (0.217 inch)

1. Drill hole (X) in the frame under the cab. Refer to Illustration 28. Install a grommet in hole (X) in order to protect the wiring harness.

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Illustration 29	g00880342
Right Hand Console (61) Plate (AA) 15 mm (0.591 inch) (BB) 5 mm (0.197 inch)

2. Cut a notch in plate (61). Refer to Illustration 29.

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Illustration 30	g00880768
217-3783 Harness

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Illustration 31	g00880779
216-4456 Harness

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Illustration 32	g00880132

3. Connect 216-4456 Harness (66) to 149-2658 Solenoid Valve (Blade Float) (31), blade lower solenoid valve (67), lift solenoid valve (68), and the connection terminal under the cab.

4. Connect 217-3783 Harness (65) to 217-3784 Control Unit (62), 217-3859 Switch (Blade On/Off) (63), 217-3860 Switch (Blade Float) (64), the fuse "F18", the ground, and 216-4456 Harness (66) .

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Illustration 33	g00880048

5. Remove screws (70) and handle (69).

6. Install 217-3784 Control Unit (62), handle (69), and screws (70).

7. Install 173-7635 Strap Holders (71) and 173-7637 Straps (72) .

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Illustration 34	g00880475

8. Install 217-3859 Switch (Blade On/Off) (63) and 217-3860 Switch (Blade Float) (64) in the right hand console.

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Illustration 35	g00880915

9. Install a 10 Amp fuse in location "18" on the fuse panel. Connect 217-3783 Harness (65) to fuse "18" and the ground on the fuse block.

Programming

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Before activating the blade float mode, be sure that all personnel are clear of the blade. Activating the blade float mode will cause the blade to immediately fall. Personal injury or death can result from a falling blade.

Illustration 36	g00881097

Push blade control lever (73) forward in order to lower the blade. Pull blade control lever (73) backward in order to lift the blade. The blade has two operation modes: manual mode and float mode.

Illustration 37	g00880475

Switch (63) has a lock that prevents accidental movement of the switch. The lock is a small button on the top of the switch. To activate the lock, pull the button backward as the rear of the switch is depressed.

Sensitivity of Blade Control Lever

The sensitivity of blade control lever (73) can be changed with control unit (62).

1. Turn the engine start switch to the ON position but do not start the engine.

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Illustration 38	g00882958

2. Press the button on control unit (62) one time. A value of 1, 2, 3, or 4 will be displayed on control unit (62) .

3. The sensitivity of blade control lever (73) can be changed. Move the blade control lever to value 1, 2, 3, or 4. Then, turn the engine start switch to the OFF position in order to save the new setting.

Blade Speed

The speed of the blade can be programmed with control unit (62). The lift speed and the lower speed can be programmed separately.

1. Turn the engine start switch to the ON position but do not start the engine.

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Illustration 39	g00882958

2. Quickly press the button on control unit (62) for two times. The control unit is now in the programming mode.
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   Table 6

   Parameter List
   Parameter Display	Parameter Value	Function
   Access Level
   I	N/A	N/A
   II
   III
   IIII	35 (1)	Access
   Speed Control
   -0	30 (2)	Blade LOWER
   -1	55 (3)
   -2	30 (4)	Blade LIFT
   -3	60 (5)
   Ramp Function
   -4	00 (1)	Ramp Time
   -5	00 (1)
   -6	39 (1)
   -7	01 (1)
   -8	00 (1)
   -9	09 (1)
   A1	N/A
   A2
   --	-	Exit

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   ( 1 )	This parameter must be set to this value.
   ( 2 )	This is the recommended value in order to start lowering the blade.
   ( 3 )	Do not exceed this value for lowering the blade. A higher value could cause the spool of the blade control valve to move the FLOAT position.
   ( 4 )	This is the recommended value in order to start lifting the blade.
   ( 5 )	This is the recommended maximum value for lifting the blade.

3. Continue to press the button on control unit (62) one time in order to scroll through the parameter list. Stop at the parameter that will be changed. Wait for a few seconds for the parameter value to display. Now, move blade control lever (73) in order to change the parameter value to the desired parameter value. Press the button on control unit (62) one time in order to accept the new value.

4. Repeat Step 3 for the next parameter value.

5. Scroll through the parameter list to value "--". Wait for a few seconds. The parameter value on the control unit will stop being displayed.

Testing and Adjusting

The following procedure is used to adjust the maximum pressure to the blade cylinders. The maximum pressure is controlled by two signal limiter valves in the blade control valve. One signal limiter valve controls the maximum pressure for lifting the blade. The other signal limiter valve controls the maximum pressure for lowering the blade.

Before testing or adjusting the signal limiter valves, ensure that the standby pressure and high pressure cutoff are adjusted correctly for the implement pump.

Reference: For more information on the standby pressure, refer to Testing and Adjusting, RENR3031, "Implement Pump Standby Pressure - Test and Adjust" for the machine that is being serviced.

Reference: For more information on the high pressure cutoff, refer to Testing and Adjusting, RENR3031, "Implement Pump High Pressure Cutoff - Test and Adjust" for the machine that is being serviced.

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Personal injury or death can result from escaping fluid under pressure. Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue and cause serious injury and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury. Always use a board or cardboard when checking for a leak.

1. Ensure that the hydraulic oil in the system is at normal operating temperature. Park the machine on a level surface.

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Illustration 40	g00800981
Operating Mode Switch on the Right Hand Control Unit

2. Place the operating mode switch in the ROADING MODE position.

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Illustration 41	g00658192
Parking Brake Switch

3. Install the steering frame lock. Place the parking brake switch in the ON position. Block the wheels. Stop the engine.

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Illustration 42	g00881471

4. Install 198-4240 Digital Pressure Indicator on pressure taps (74) and (75) of blade control valve.

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Illustration 43	g00800981
Operating Mode Switch on the Right Hand Control Unit

5. Start the engine. Place the operating mode switch in the WORKING MODE position. Place the blade in the MANUAL MODE. Increase the engine speed to 1500 rpm.

6. Perform Step 7 in order to adjust the pressure for lifting the blade. Perform Step 8 in order to adjust the pressure for lowering the blade.

7. Blade Lift:

   1. Slowly move the blade control lever until the blade is fully raised. Hold the blade control lever. The pressure reading at pressure tap (74) should be 14500 kPa (2100 psi).

   2. If the pressure setting is not correct, release the blade control lever.

   3. Turn signal limiter valve (77) clockwise with a 6 mm wrench in order to increase the oil pressure. Perform Step 7.a again in order to check the new pressure setting.

      Note: One full turn of the signal limiter valve in the clockwise direction increases the oil pressure by 10000 kPa (1450 psi).

8. Blade Lower:

   1. Slowly move the blade control lever until the blade is fully lowered. Hold the blade control lever. The pressure reading at pressure tap (75) should be 17500 kPa (2550 psi).

   2. If the pressure setting is not correct, release the blade control lever.

   3. Turn signal limiter valve (76) clockwise with a 6 mm wrench in order to increase the oil pressure. Perform Step 7.a again in order to check the new pressure setting.

      Note: One full turn of the signal limiter valve in the clockwise direction increases the oil pressure by 10000 kPa (1450 psi).