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FOLDING STAIRWAY Manual for Komatsu 980E Truck - Hydraulic Power Pack Model No.: PSA-K980E-FS Serial No.:980E-001 - ~ Date Manufactured: PSA-K980E-FS 8-11-16A...
Section 5 Assembly Complete-Main Assemblies 5-1 Assembly Complete Parts List 5-2 Landing Assembly Parts List 5-3 Stair Assembly Parts List 5-4 Hydraulics -Cylinder Assembly Cylinder and Components Valve Diagram 5-5 Power Pack Assembly Parts List 5-6 Electrical Controls Wiring Diagrams PSA-K980E-FS 8-11-16A...
Weld only to the extension. Per View 4, fit the assembled stair set to the bolting pads, without the Landing Deck or Landing Floor Infill fitted. Per Views 5 and 6, fit the Landing Floor Infill and then the Landing Deck. PSA-K980E-FS 8-11-16A...
Install short blue wire to screw terminal of Komatsu circuit breaker, and other end to fuse holder. Run wiring harness from Power Step Folding Stairway magnetic proximity switch around under radiator, and follow cabling/hose routing up to air line/ electrical outlet on rear Right Hand Side of cabin.
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 right (clockwise) when the step is being lowered, until it is lowering at a safe and reasonable speed.
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) PSA-K980E-FS 8-11-16A...
FOLDING STAIRWAY Komatsu 980E Truck Section 5. Assembly Complete - Main Assemblies See Pg 11 Item Part No. Part Name PSA-K980E-FS ASSEMBLY COMPLETE PS-23667A LANDING ASSEMBLY (INC.HANDRAILS) REFER TO 5-1 FOR DETAILS PS-23662A STAIR ASSEMBLY (INC.HANDRAILS) REFER TO 5-1 FOR DETAILS...
TUBE (Cut to suit) PS-61147 FERRULES PS-61158-1MM FITTING - 1mm RESTRICTION 90 DEG ROD END PS-61145 FITTING- 9/6”JIC SWIVEL PS-60050 - 2.8M HOSE 7/16” x 2.8M PS-60051-2.8M HOSE- HYDR. ( 9/6”JIC SWIVEL FITTING) PS-61153 FITTING - 7/16” x 1/4BSPP STRAIGHT Pg16 PSA-K980E-FS 8-11-16A...
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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” Pg17 PSA-K980E-FS 8-11-16A...
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FOLDING STAIRWAY Komatsu 980E Truck Hydraulic Operation Section 5-5 Power Pack PS-80103A-SLD See Parts List Pg 20, 21 View B View A Hoses shown dotted Pg18 PSA-K980E-FS 8-11-16A...
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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 Pg19 PSA-K980E-FS 8-11-16A...
FOLDING LADDER Komatsu 980E Truck Section 5-6 Electrical Controls Control Pendant Switch Mounted on Handrail Proximity Switch Assembly Mounted on Fixed Landing Cab Harness & Equipment Refer Wiring Harness Drawings...
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CABIN TO SWITCH HARNESS PS-75430 PROXIMITY SWITCH 1 x Optional PS-77002 CABIN BOX LED LIGHT INDICATOR PS-77003 WIRING HARNESS IN CABIN WARNING LOW OR FAULTY BATTERIES WILL VOID WARRANTY ON THE POWER PACK AND ALL ELECTRICAL SWITCHES AND COMPONENTS Pg23 PSA-K980E-FS 8-11-16A...
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