Maxon DMD-22 User Maintenance Manual Download Page 8 | Manualshive

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1

1921 Slauson

A

ve. Santa Fe Springs, CA. 90670 (800) 227-41

16 F

AX (888) 771-7713

8

LIFTGATE TERMINOLOGY

RUNNER

PLATFORM

COLUMN

HOUSING

COVER

PLATFORM

LATCH

POWER UNIT

(BEHIND COVER)

UP/DOWN

CONTROL SWITCH

(OUTBOARD)

UP/DOWN

CONTROL SWITCH

(INBOARD)

TRANSIT

HOOK

MAIN FRAME

FOLD/UNFOLD SWITCH

(IF EQUIPPED WITH

HYDRAULIC CLOSER)

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Summary of Contents for DMD-22

Page 1: ...M 16 40 AUGUST 2018 MAXON Lift Corp 2018...

Page 2: ......

Page 3: ...cessing All claims for warranty will be denied if paperwork has not been received or claim submitted via Maxon website for processing by MAXON s Warranty Department within 30 days of repair date All c...

Page 4: ...CLOSE 28 PUMP MOTOR VALVE OPERATION EQUIPPED WITH HYDRAULIC CLOSER 29 HYDRAULIC SCHEMATIC MANUAL CLOSE 30 HYDRAULIC SCHEMATIC EQUIPPED WITH HYDRAULIC CLOSER 31 ELECTRICAL SCHEMATIC MANUAL CLOSE 32 EL...

Page 5: ...THIS PAGE INTENTIONALLY LEFT BLANK...

Page 6: ...te keep your feet and any objects clear of the inboard edge of the platform Your feet or objects on the platform can become trapped between the platform and the Liftgate housing cover WARNING Correctl...

Page 7: ...cals are available from Maxon Customer Service Consider the safety and location of bystanders and location of nearby objects when operating the Liftgate Stand to one side of the platform while operati...

Page 8: ...FAX 888 771 7713 8 LIFTGATE TERMINOLOGY RUNNER PLATFORM COLUMN HOUSING COVER PLATFORM LATCH POWER UNIT BEHIND COVER UP DOWN CONTROL SWITCH OUTBOARD UP DOWN CONTROL SWITCH INBOARD TRANSIT HOOK MAIN FR...

Page 9: ...INTENANCE section Check for loose or missing nuts bolts covers roll pins screws and pins Check that all WARNING and instruction decals are in place and legible Check electrical wiring for chaffing and...

Page 10: ...y Repair Required Corrected 10 Check switches and wiring connections on Liftgate as well as pump inside main housing Also check ground straps Satisfactory Repair Required Corrected 11 Check the gear p...

Page 11: ...ing the hydraulic fluid reservoir filler cap drain plug and hydraulic lines clean up contaminants that can get in the openings Also protect the openings from accidental contamination Never mix synthet...

Page 12: ...OMMENDED BRANDS PART NUMBER CHEVRON HIPERSYN 32 KENDALL GOLDEN MV SHELL TELLUS S2 VX 32 EXXONMOBIL UNIVIS N 32 DTE 24 ISO 15 OR MIL H 5606 HYDRAULIC OIL RECOMMENDED BRANDS PART NUMBER CHEVRON FLUID A...

Page 13: ...l contamination Never mix synthetic fluids with conventional hydraulic fluids Hydraulic system must be purged if the fluids are mixed NOTE Liftgate is shipped with Exxon Univis HVI 13 hydraulic fluid...

Page 14: ...bed height FIG 14 1 Continue to hold UP DOWN control switch for 30 60 seconds to circulate hydraulic fluid through slave cylinder and reservoir FIG 14 2 Release UP DOWN control switch PLATFORM AT BED...

Page 15: ...rating Liftgate under certain conditions with air in system could result in damage to lift and load as well as personal injury If lines are opened closed or replaced and if power unit or cylinders are...

Page 16: ...nder tension When all tension is released from torsion bar s platform can unfold suddenly Any person in the path of opening platform could be injured WARNING FIG 16 1 2 Support platform and flipover e...

Page 17: ...ADJUSTMENT Continued PERIODIC MAINTENANCE 5 Loosen locking screw from LH torsion bar housing FIG 17 2 LH TORSION BAR HOUSING LOCKING SCREW LH TORSION BAR 4 With platform securely supported remove cove...

Page 18: ...713 18 7 Remove LH torsion bar FIG 18 2 REMOVING LH TORSION BAR FIG 18 2 LH TORSION BAR TORSION BAR REPLACEMENT ADJUSTMENT Continued REMOVING LH TORSION BAR PIN FIG 18 1 6 Remove LH torsion bar pin FI...

Page 19: ...LH TORSION BAR 1 Stow platform Refer to Operation Manual for detailed operating instructions 2 On LH runner remove cap screw lock washer and flat washers from torsion bar pin FIG 19 1 Adjust the LH t...

Page 20: ...is applied to torsion bar FIG 19 1 Once the platform is unfolded it should lay flat FIG 20 1 position 3 If platform does not lay flat decrease tension by removing cap screw lock washer and flat washe...

Page 21: ...EPLACEMENT ADJUSTMENT Continued 7 With platform securely supported remove cover plate FIG 21 1 REMOVING COVER PLATE FIG 21 1 PLATFORM COVER PLATE TAPPING SCREWS 8 PLACES 8 Loosen locking screw from LH...

Page 22: ...ard towards center of vehicle FIG 22 1 Approximate adjustment travel should be no more than 10 INCREASING LH TORSION BAR TENSION FIG 22 1 LH TORSION BAR HOUSING STOP BLOCK 0 10 10 Replace and tighten...

Page 23: ...upport platform and flipover evenly by placing supports under the RH and LH runners FIG 23 1 FIG 23 1 SUPPORT 2 PLACES TORSION BAR REPLACEMENT ADJUSTMENT Continued PERIODIC MAINTENANCE REPLACE RH TORS...

Page 24: ...RH TORSION BAR 5 On RH runner unbolt the platform and runner pin from RH runner FIG 24 2 Next remove platform and runner pin and platform spacer FIG 24 2 RH TORSION BAR RH RUNNER FIG 24 2 PLATFORM RU...

Page 25: ...8 Rotate the RH platform and runner pin clockwise to line up the pin holes with the RH runner threaded holes FIG 25 2 FIG 25 2 9 Secure RH platform and runner pin as shown in FIG 25 2 RH PIN WELDMENT...

Page 26: ...FAMILY OWNED DECAL P N 283445 01 WARNING DECAL P N 298373 01 DECAL C DECAL F OR G DMD 22 ONLY CAPACITY DECAL P N 220388 03 DMD 33 ONLY CAPACITY DECAL P N 220388 02 NOTE Ensure there is no residue dir...

Page 27: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 27 WARNING DECAL P N 298373 01 DECAL SHEET P N 289192 01 WARNING DECAL P N 299274 01...

Page 28: ...OR SOLENOID OPERATION LIFTGATE FUNCTION SOLENOID OPERATION MEANS ENERGIZED MOTOR STARTER SWITCH LOWERING VALVE RAISE LOWER REFER TO VALVES SHOWN ON HYDRAULIC SCHEMATIC PUMP MOTOR VALVE OPERATION MANUA...

Page 29: ...WITH HYDRAULIC CLOSER TABLE 29 1 POWER UNIT FIG 29 1 STARTER SWITCH MOTOR LOWERING VALVE FOLD UNFOLD VALVE ASSEMBLY POWER UNIT MOTOR VALVE OPERATION LIFTGATE FUNCTION REMOTE VALVE OPERATION MEANS ENER...

Page 30: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 30 HYDRAULIC SCHEMATIC MANUAL CLOSE FIG 30 1 3 0...

Page 31: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 31 HYDRAULIC SCHEMATIC EQUIPPED WITH HYDRAULIC CLOSER FIG 31 1 3 0...

Page 32: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 32 ELECTRICAL SCHEMATIC MANUAL CLOSE FIG 32 1...

Page 33: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 33 ELECTRICAL SCHEMATIC EQUIPPED WITH HYDRAULIC CLOSER FIG 33 1...

Page 34: ...TERMINAL F LH STOP TURN TERMINAL E RH STOP TURN TERMINAL E RH STOP TURN TERMINAL D STOP TERMINAL D STOP TERMINAL C REVERSE TERMINAL C REVERSE TERMINAL B TAIL TERMINAL B TAIL TERMINAL A GROUND TERMINA...

Page 35: ...Springs CA 90670 800 227 4116 FAX 888 771 7713 35 ELECTRICAL SCHEMATIC HOUSING COVER ASSEMBLY WITHOUT LIGHTS SYSTEM DIAGRAMS CONNECT TO WIRING HARNESS LICENSE PLATE LIGHT LH LICENSE PLATE LIGHT RH LI...

Page 36: ...11921 Slauson Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 36 ELECTRICAL SCHEMATIC HOUSING COVER ASSEMBLY WITH FOUR LIGHTS CONNECT TO VEHICLE HARNESS CONNECT TO JUMPER HARNESS...

Page 37: ...son Ave Santa Fe Springs CA 90670 800 227 4116 FAX 888 771 7713 37 ELECTRICAL SCHEMATIC HOUSING COVER ASSEMBLY FOREIGN VEHICLE WITH 6 LIGHTS SYSTEM DIAGRAMS CONNECT TO JUMPER HARNESS CONNECT TO VEHICL...

Page 38: ...RING VALVE Coil Resistance 6 6 70 F 15 26 7 70 F 15 Ampere 1 8A 0 9A Coil terminal torque 15 45 lb in max Valve cartridge torque 25 30 lb ft max Coil nut torque 15 45 lb in FOLD UNFOLD VALVE Coil Resi...

Page 39: ...s table for torquing electrical or hydraulic hose connections on the pump assembly CAUTION GRADE 8 BOLT TIGHTENING TORQUE DIAMETER THREAD PITCH TORQUE 1 4 20 10 14 lb ft 1 4 28 11 16 lb ft 5 16 18 20...

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