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FOLDING STAIRWAY

Komatsu 980E Truck

Section 4.

Recommended Maintenance Procedure

Daily

Visually check stairway and structure for damage, loose components,

handrails, etc.

Check for hydraulic oil leaks from hydraulic cylinders, plumbing and hoses.

Notify the appropriate supervisor for any observed damage or malfunction.

500 Hours

- Grease on regular service.

- Check daily service as above.

- Change oil (Use same as Machine Hydraulics)

Pg9

PSA-K980E-FS 8-11-16A

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Summary of Contents for 980E-001

Page 1: ...PSA K980E FS 8 11 16A Model No PSA K980E FS Serial No 980E 001 Date Manufactured FOLDING STAIRWAY Manual for Komatsu 980E Truck Hydraulic Power Pack ...

Page 2: ...ating Procedure 9 Section 4 Recommended Maintenance Procedure 10 Section 5 Assembly Complete Main Assemblies 11 5 1 Assembly Complete Parts List 12 5 2 Landing Assembly Parts List 14 5 3 Stair Assembly Parts List 16 5 4 Hydraulics Cylinder Assembly Cylinder and Components Valve Diagram 18 5 5 Power Pack Assembly Parts List 22 5 6 Electrical Controls Wiring Diagrams ...

Page 3: ...ust the position of 23 675 Stair Actuator Attachment on the stair stile View 2 4 By extending the cylinder raise the stair to the vertical stowed position View 1 5 Adjust the position of the Stair Buffer Bracket 23 653 on the stair stile so that the buffer is compressed firmly when the stair is in the stowed position View 1 6 Adjust the positions of the Handrail Bumpers 23 651 mounted to the stair...

Page 4: ...FOLDING STAIRWAY Komatsu 980E Truck Section 1 Mounting and Installation PS 23635 Pg4 PSA K980E FS 8 11 16A ...

Page 5: ...FOLDING STAIRWAY Komatsu 980E Truck Section 1 Mounting and Installation PS 23636 Pg5 PSA K980E FS 8 11 16A VIEW 1 VIEW 6 VIEW 3 VIEW 4 VIEW 5 VIEW 2 ...

Page 6: ...FOLDING STAIRWAY Komatsu 980E Truck Section 1 Mounting and Installation Dimensions PS 23678 Pg6 PSA K980E FS 8 11 16A ...

Page 7: ...main cable gland to inside centre console ensuring conduit goes underneath control box Connect blue wire start from conduit above to blue wire of cabin indicator panel harness In rear access connect black wire with 10mm eye terminal to machine ground and blue wire to outer terminal of newly inserted fuse holder Install short blue wire to screw terminal of Komatsu circuit breaker and other end to f...

Page 8: ...h in the up position until the ladder is in the fully raised position The ladder is now raised and stored FOLDING STAIRWAY Komatsu 980E Truck Section 3 Operating Procedure Pg8 PSA K980E FS 8 11 16A OPERATING NOTES NOTE FLOW CONTROL VALVE ADJUSTMENT The valve should be positioned to restrict the flow and speed of the Power Step when lowering Adjust the knob on top of the valve by turning left or ri...

Page 9: ...e for damage loose components handrails etc Check for hydraulic oil leaks from hydraulic cylinders plumbing and hoses Notify the appropriate supervisor for any observed damage or malfunction 500 Hours Grease on regular service Check daily service as above Change oil Use same as Machine Hydraulics Pg9 PSA K980E FS 8 11 16A ...

Page 10: ...10 PSA K980E FS 8 11 16A Item Part No Part Name Qty 1 2 PSA K980E FS PS 23667A ASSEMBLY COMPLETE LANDING ASSEMBLY INC HANDRAILS REFER TO 5 1 FOR DETAILS 1 1 3 PS 23662A STAIR ASSEMBLY INC HANDRAILS REFER TO 5 1 FOR DETAILS 1 4 PS 62999 AH 980E HYDRAULIC CYLINDER 1 5 PS 80103A SLD POWER PACK 1 ...

Page 11: ...FOLDING STAIRWAY Komatsu 980E Truck Hydraulic Operation Section 5 1 Assembly Complete PSA 980E FS Pg11 PSA K980E FS 8 11 16A ...

Page 12: ...FOLDING STAIRWAY Komatsu 980E Truck Section 5 1 Landing Assembly PS 23667A Pg12 PSA K980E FS 8 11 16A Hydraulic Cylinder See page 16 ...

Page 13: ... M10NN CPS M6NN CPS M5NN CPS M16WH CPS M10WH CPS M8WH CPS M5WH PS 75430 B 930 CPS M5X20ZP LANDING FRAME LANDING DECK STEP TREAD HAND SHIELD LANDING FLOOR INFILL HANDRAIL BUMPER BOLTING PADS MAIN MOUNTING BLOCKS GO SWITCH BUSH STAIR HINGE PIN WASHER Dia 55 SPECIAL WASHER HANDRAIL BUMPER LINER GREASE NIPPLE M6 Str BOLT M16 X 40 Bolt BOLT M16 X 40 Socket head BOLT M16 x 30 For infill BOLT M10 x 35 BO...

Page 14: ...FOLDING STAIRWAY Komatsu 980E Truck Section 5 3 Stair Assembly PS 23662A 980E See Parts List Page 14 Pg14 PSA K980E FS 8 11 16A ...

Page 15: ...PS M12X30ZP CPS M10X25ZP CPS M6X20ZP CPS M12NZP CPS M10NZP CPS M6NZP CPS M12WH CPS M10WH STAIR STILES FABRICATION LH STAIR STILES FABRICATION RH STAIR EXTENSION LH 2 STEP STAIR EXTENSION RH 2 STEP STAIR TREADS STAIR TREAD Modified HANDRAIL FRONT INNER HANDRAIL REAR OUTER STAIR ACTUATOR ATTACHMENT HANDRAIL BUMPER Matched Pair HANDRAIL BUMPER LINER HANDRAIL BUMPER MOUNTING pair STAIR BUFFER BRACKET ...

Page 16: ...PS 61153 HYDRAULIC CYL with hard plumbing HARD PLUMBING KIT HYDRAULIC CYLINDER 2 1 2 PIN CYLINDER SEAL KIT Not shown VALVE PILOT OPERATED LOCKING FITTING ELBOW 7 16 JIC FITTING ELBOW O RING 1 4BSPPx9 16 JIC FITTING O RING 1 4BSPPx 9 16 JIC FITTING 1 mm RESTRICTION 90 DEG REDUCER JIC x BSPP TUBE Cut to suit FERRULES FITTING 1mm RESTRICTION 90 DEG FITTING 9 6 JIC SWIVEL HOSE 7 16 x 2 8M HOSE HYDR 9 ...

Page 17: ...E FS 8 11 16A FOLDING LADDER Komatsu 980E Truck Section 5 4 Hydraulic Cylinder Valve Diagram See also Drawing page 16 Double Acting Hydraulic System with directional Control Valve and Cylinder Lock Valve 0 040 0 040 ...

Page 18: ...su 980E Truck Hydraulic Operation Section 5 5 Power Pack PS 80103A SLD See Parts List Pg 20 21 Pg18 PSA K980E FS 8 11 16A 9 9A 8 4 13 27 26 6 5 25 6 2 7 7A 10 29 11 16 14 12 3 30 24 3A 3B Hoses shown dotted View B View A 8A ...

Page 19: ...3A SLD See Parts List Pg 20 21 View B View A 32 33 24 14 19 11 16 28 NOTE THE RELIEF PRESSURE OF THE POWERPACK IS TO BE SET TO 2800PSI IF THE POWERPACK IS REPLACED THIS RELIEF PRESSURE WILL NEED TO BE RESET USING INLINE GAUGES FAILURE TO DO SO MAY RESULT IN ACCIDENT OR INJURY 10 18 31 17 12 15 20 37 21 23 9 9A 36 ...

Page 20: ...PS 41019 PS 41017 PS 41018 PS 41016 PS 73010 POWER PACK ASSEMBLY MOTOR ENCLOSURE SEALED ST ST POWER PACK CLAMP ELECTRIC MOTOR HEAT SENSOR AUDIBLE ALARM BRIDGE RECTIFIER SOLENOID 24V START MOTOR HYDR TUBE 9 16 HYDR TUBE 7 16 HYDRAULIC FITTING 9 16 HYDRAULIC FITTING 7 16 HYDRAULIC FITTING 7 16 HYDRAULIC FITTING 9 16 135A CIRCUIT BREAKER 5A CIRCUIT BREAKER ISOLATION SWITCH SEALED WIRING BOX TOGGLE SW...

Page 21: ...rt Name Qty 30 31 32 33 34 35 36 37 PS 73009 PS HD10 3 16P PS HD10 5 16P PS 41032 PS 60051 3 5M PS 60050 3 5M PS 63202A PS HD10 5 16P RUBBER BOOT BLACK 3 PIN SOCKET PARK BREAK 5 PIN SOCKET AUTO RAISE DECAL AUTO RAISE SOCKET HYDRAULIC HOSE 9 16 x 3 5M HYDRAULIC HOSE 7 16 x 3 5M VALVE FITTING FLOW CONTROL VALVE 5 PIN SOCKET 3 1 1 1 1 1 1 1 Not Shown Not Shown ...

Page 22: ...R Komatsu 980E Truck Section 5 6 Electrical Controls Cab Harness Equipment Refer Wiring Harness Drawings Proximity Switch Assembly Mounted on Fixed Landing Control Pendant Switch Mounted on Handrail 7 3 8 4 2 5 6 1 ...

Page 23: ... PS 77004 PS 75430 PS 77002 PS 77003 CONTROL PENDANT SWITCH CONTROL PENDANT BRACKET HAND RAIL SWITCH HARNESS AUTO RAISE HARNESS CABIN TO SWITCH HARNESS PROXIMITY SWITCH CABIN BOX LED LIGHT INDICATOR WIRING HARNESS IN CABIN 1 1 1 1 1 2 1 1 Optional only 1 x Optional WARNING LOW OR FAULTY BATTERIES WILL VOID WARRANTY ON THE POWER PACK AND ALL ELECTRICAL SWITCHES AND COMPONENTS ...

Page 24: ...Pg24 PSA K980E FS 8 11 16A FOLDING STAIRWAY Komatsu 980E Truck Hydraulic Operation Section 5 6 Electrical System Wiring Diagrams Pg 1 ...

Page 25: ...Pg25 PSA K980E FS 8 11 16A FOLDING STAIRWAY Komatsu 980E Truck Hydraulic Operation Section 5 6 Electrical System Wiring Diagrams Pg 2 KOM 980E Hydraulic Operation ...

Page 26: ...Pg26 PSA K980E FS 8 11 16A FOLDING STAIRWAY Komatsu 980E Truck Hydraulic Operation Section 5 6 Electrical System Wiring Harness Pgs 3 ...

Page 27: ...Pg27 PSA K980E FS 8 11 16A FOLDING STAIRWAY Komatsu 980E Truck Hydraulic Operation Section 5 6 Electrical System Wiring Harness Pgs 4 ...

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