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"Providing Access to the World"
International Corporate Hdqrs: P.O. Box 310
1-800-THE LIFT
(574) 946-6153
®
37221 Rev. A
April
2012
Service Manual for:
NL501
Public Use Wheelchair Lifts
Series
DOT — Public Use Lift
DOT — Public Use Lift
"DOT — Public Use Lift" verifies that this platform lift meets the
"public use lift" requirements of FMVSS No. 403. This lift may be
installed on all vehicles appropriate for the size and weight of the
lift, but must be installed on buses, school buses, and multi-
purpose passenger vehicles other than motor homes with a gross
vehicle weight rating (GVWR) that exceeds 4,536 kg (10,000 lb).
®
®
Winamac, IN 46996 USA
FAX: (574) 946-4670
01
01
W ARNING
Read manual
before installing
or servicing lift.
Failure to do so
may result in
serious bodily
injury and/or
property damage.
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Related Manuals for Braun Corporation NL501 Series
Summary of Contents for Braun Corporation NL501 Series
- Page 1 Service Manual for: NL501 Public Use Wheelchair Lifts Series DOT — Public Use Lift DOT — Public Use Lift “DOT — Public Use Lift” verifies that this platform lift meets the “public use lift” requirements of FMVSS No. 403. This lift may be installed on all vehicles appropriate for the size and weight of the lift, but must be installed on buses, school buses, and multi- purpose passenger vehicles other than motor homes with a gross...
- Page 2 Congratulations We at The Braun Corporation wish to express our fullest appreciation on your new purchase. With you in mind, our skilled craftsmen have designed and assembled the finest lift available. This manual provides service-related material. Refer to the FMVSS No. 403 Quick Reference Installation Sheet for installation instructions, operating instructions and maintenance procedures.
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Page 3: Table Of Contents
Contents Troubleshooting and Maintenance Lift Terminology ............2 Switch and Sensor Locations ........3 Certification Checklist Diagnostic Procedures ..4 Switch Adjustments ............5 LCD Diagnostic Codes ..........6 Lubrication Diagram ............. 8 Maintenance and Lubrication Schedule ....9-11 Lift Electrical Schematic ..........13 Lift Wiring Diagram ............ -
Page 4: Lift Terminology
Lift Terminology Mounting Pump Base Stow / Deploy Module Hydraulic H Brace Inner Cylinder Vertical Channel Intermediate Raise / Lower Vertical Channel Hydraulic (S-Beam) Cylinder (not visible) Outer Vertical Channel Outer Upper Control Arm Inner Inner Upper Roll Stop Control Arm Right Inner Handrail... -
Page 5: Switch And Sensor Locations
Switch and Sensor Locations Inner Roll Stop Up Activation Block Inner Roll Stop Occupied Switch 15754 Inner Roll Stop Deployed - Floor Level Cam (Outer) 500-0015 Inner Roll Stop Deployed - Floor Level Cam (Inner) 500-0014 Platform Unfold Microswitch 30205 Full In Microswitch Full Out... -
Page 6: Certification Checklist Diagnostic Procedures
Platform Lift Installations in Motor Vehicles (49 CFR the referenced procedures to correct the problem 571.404). or contact a Braun Corporation Product Support representative. • Vehicle movement is prevented unless the lift door is closed, ensuring the lift is stowed. -
Page 7: Switch Adjustments
Switch Adjustments Adjustment Procedures Full In: When the Full In Switch is deactivated (de- point when the Inner Roll Stop is locked in the upright pressed), inward travel of the lift during Stow function position. This deactivation stops the downward travel is stopped. -
Page 8: Lcd Diagnostic Codes
Repeat the harness diagnostic procedure. If 1002 1002 an incorrect value is still present after check- 1002 ing the harness and connections, contact 1002 DIAG 1002 The Braun Corporation Product Support 1002 V104 Lift_Out Floor_SW 1002 Department. HAND-1 L CD MODULE... - Page 9 NOTES This page intentionally left blank. Page 7...
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Page 10: Lubrication Diagram
Maintenance and Lubrication Lubrication Diagram Inner / Outer Vertical Channel Outer Rollers (36) H Brace Intermediate Pivot Points (2) Vertical Channel Inner / Outer (S-Beam) Edges (8) Vertical Channel Tapered Rollers (36) Inner Roll Stop Slide Bracket Slot Area (2) (front &... -
Page 11: Maintenance And Lubrication Schedule
NL501 Series lifts are equipped with hardened pins repeated at 750 cycle intervals following the scheduled and self-lubricating bushings to decrease wear, 4500 cycle maintenance procedures. These intervals... - Page 12 Maintenance and Lubrication Schedule Perform all procedures listed in previous section also Outer platform side plates (4 places) and sliding Apply Door Ease to top and bottom edges of outer platform guides (2) platform side plates and bottom edges of sliding platform guides.
- Page 13 Maintenance and Lubrication Schedule Perform all procedures listed in previous section also Inspect cotter pins: Resecure or replace if needed. • Upper inner control arms (2) • Outer barrier latch gas springs (2 - hairpin) • Spring tensioner pulley bracket (1) •...
- Page 14 NOTES This page intentionally left blank. Page 12...
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Page 15: Lift Electrical Schematic
Lift Electrical Schematic DESCRIPTION SYMBOL BATTERY CHASSIS GROUND RD(20) CIRCUIT BREAKER / FUSE RD(20) JUNCTION MOTOR FULL OUT STOW LEVEL SOLENOID MICROSWITCH LIFT INPUTS SOLENOID MICROSWITCH RD(18) BK(22) BK(18) RD(20) SWITCH GN(22) MICROSWITCH RD(22) VT(26) RD(20) GN(26) DIODE BK(26) BU(26) WH(26) FULL IN RD(22) -
Page 16: Lift Wiring Diagram
Lift Wiring Diagram Ground 6-COND WIRE CODE 6-COND WIRE CODE Stud COLOR COLOR GREEN(16) SOLENOID A BU(18) BROWN(16) SOLENOID B SOLENOID C YELLOW(16) RED(16) SOLENOID D BLACK(16) BK(18) NOT USED NOT USED BU(18) NOTES: 1. Junctions occur only at 34571A-1 34774A marked intersections. - Page 17 NOTES This page intentionally left blank. Page 15...
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Page 18: Hydraulic Parts List
Hydraulics Parts List Item Qty. Description Part # Pump Assembly (M-3404-0101) 150G / 24V / Horizontal Mount 34570 (includes items 2 & 3) Motor, Pump - 24 Volt 34897 Cap, Reservoir Filler - Screw On 30167 Cartridge (only), “3-Way Valve” 34900 Coil (only) 34902... -
Page 19: Hydraulic Diagram
Hydraulic Diagram Arrow must face valve block Page 17... -
Page 20: Valve Block Housing
Valve Block Housing Exploded View and Parts List DWG. NOTES 1) PLACE EYELET OF HARNESS ONTO BOLT B.C. #10006, THEN PLACE ONTO BLOCK B.C. #34571A-1 PRIOR TO PLACING INTO HOUSING. 2) AFTER VALVE BLOCK HAS BEEN INSTALLED, INSTALL KNOBS B.C. #35088 ONTO MANUAL VALVE STEMS AS SHOWN. AI/fold-out art 1-92 NOTE: 2... -
Page 21: Hand Pump Assembly
Hand Pump Assembly Exploded View and Parts List DWG. NOTES 1) REMOVE BOLT AND NUT AND DISCARD. 2) INSTALL FITTINGS INTO PUMP B.C.#34572 PRIOR TO BOLTING TO BRACKET. NOTE: 1 PART NUMBER DESCRIPTION ITEM 87592 FITTING-90 DEG 4JICFX#4JICM 24504 FITTING-7/16-20/7/16-20/37° 14614 NUT-1/4-20 NYLOCK/AUTO-BK 10003... -
Page 22: Hydraulic Schematic
Hydraulic Schematic .5 GPM Relief Valve 1500 Relief Valve 1500 Rear Front In/Out In/Out Cylinder Cylinder “B” Valve “C” “A” “D” Valve Valve Valve Valve Block Main Relief Valve 2000 PUMP 1900 Rear Front Up/Down Up/Down Cylinder Cylinder BACKUP Reservoir PUMP Description Symbol... -
Page 23: Mounting Base
Exploded Views and Parts Lists Mounting Base DWG. NOTES 1) APPLY " GREASE-MOBIL TEMP SHC 32 " B.C. #28598 TO ALL BEARINGS NOTED. 12x 2) APPLY ALCOHOL TO BRACKET B.C. #500-0018 PRIOR TO APPLYING BUMPERS B.C. #82064 3) PLACE BOLT B.C. #10013 THRU EYELET OF CABLE B.C. #22166A PRIOR TO INSERTING THROUGH HOLE NOTE: 3 NOTE: 1... -
Page 24: Upper / Lower Control Arms - Front
Exploded Views and Parts Lists Upper / Lower Control Arms - Front DWG. NOTES 1) APPLY " GREASE-MOBIL TEMP SCH 32 B.C. #28598 TO ALL BEARINGS. 2) APPLY LOCTITE THREADLOCKER BLUE 242 B.C.# 18822 ® ® TO B.C. #25171 6X. 3) TORQUE COLLAR TO: 144 in/lbs. -
Page 25: Upper / Lower Control Arms - Rear
Exploded Views and Parts Lists Upper / Lower Control Arms - Rear DWG. NOTES 1) APPLY " GREASE-MOBIL TEMP SCH 32 B.C. #28598 NOTE: 2 TO ALL BEARINGS. NOTE: 1 2) APPLY LOCTITE THREADLOCKER BLUE 242 B.C.# 18822 ® ® TO B.C. -
Page 26: Inner Vertical Channel - Front
Exploded Views and Parts Lists Inner Vertical Channel - Front DWG. NOTES 1) PARTS 500-0128 AND 500-0175A TO BE LOCATED TOWARD INSIDE OF CHANNEL 10X. 2) PARTS 500-0110 AND 500-0101A TO BE LOCATED TOWARD OUTSIDE OF CHANNEL 8X. 3) APPLY " GREASE-MOBIL TEMP SCH 32 " B.C. #28598 TO INSIDE ROLLERS PRIOR TO RE ASSEMBLY 18X. -
Page 27: Inner Vertical Channel - Rear
Exploded Views and Parts Lists Inner Vertical Channel - Rear DWG. NOTES 1) PARTS 500-0128 AND 500-0175A TO BE LOCATED TOWARD INSIDE OF CHANNEL 10X. 2) PARTS 500-0110 AND 500-0101A TO BE LOCATED TOWARD OUTSIDE OF CHANNEL 8X. 3) APPLY " GREASE-MOBIL TEMP SCH 32 " B.C. #28598 TO INSIDE ROLLERS PRIOR TO RE ASSEMBLY 18X. -
Page 28: Intermediate Vertical Channel (S-Beam) - Front
Exploded Views and Parts Lists Intermediate Vertical Channel (S-Beam) - Front DWG. NOTES 1) APPLY " GREASE-MOBIL TEMP SHC 32 " B.C. #28598 TO INSIDE ROLLER PRIOR TO ASSEMBLY. NOTE: 1 ITEM QTY. PART NO. DESCRIPTION 500-0736 GUARD-CHAIN ROLLER 21708R021 CHAIN-LEAF-4x4-.5 PITCH x 21"... -
Page 29: Intermediate Vertical Channel (S-Beam) - Rear
Exploded Views and Parts Lists Intermediate Vertical Channel (S-Beam) - Rear DWG. NOTES 1) APPLY " GREASE-MOBIL TEMP SHC 32 " B.C. #28598 TO INSIDE ROLLER PRIOR TO ASSEMBLY. NOTE: 1 ITEM QTY. PART NO. DESCRIPTION 500-0736 GUARD-CHAIN ROLLER 21708R021 CHAIN-LEAF-4x4-.5 PITCH x 21"... -
Page 30: Outer Vertical Channel - Front
Exploded Views and Parts Lists Outer Vertical Channel - Front DWG. NOTES NOTE: 1 1) PARTS 500-0128 AND 500-0175A TO BE 3) APPLY "GREASE-MOBIL TEMP SCH 32" B.C. #28598 TO NOTE: 3 LOCATED TOWARD INSIDE OF INSIDE ROLLERS PRIOR TO ASSEMBLY 18X. CHANNEL 8X. -
Page 31: Outer Vertical Channel - Rear
Exploded Views and Parts Lists Outer Vertical Channel - Rear DWG. NOTES NOTE: 1 1) PARTS 500-0128 AND 500-0175A TO BE LOCATED TOWARD INSIDE OF CHANNEL 8X. NOTE: 3 2) PARTS 500-0110 AND 500-0101A TO BE LOCATED TOWARD OUTSIDE OF CHANNEL 10X. 3) APPLY "... -
Page 32: Handrail Assembly
Exploded Views and Parts Lists Handrail Assembly - Front DWG. NOTES 1) INSERT BOLT THROUGH CAM AND THREAD INTO SHAFT AFTER SHAFT HAS BEEN INSTALLED INTO HANDRAIL. NOTE: 1 NOTE: 1 ITEM QTY. PART NO. DESCRIPTION 10059BKWP NUT-3/8-16 HEX/AUTO-BK-WITH PATCH NOTE: 1 28977 BOLT-3/8-16 X 1 3/4 "... -
Page 33: Platform Assembly
Exploded Views and Parts Lists Platform Assembly DWG. NOTES 1) INSTALL PARTS B.C. #34357 AND B.C. 325371 AFTER OUTER PLATFORM IS INSTALLED INTO PLACE. 2) LOCATE SPRING HOOK INTO SPRING ATTACHMENT BRACKET ON THE BOTTOM SIDE OF THE PLATFORM INNER DECK. 3) USE (3) SCREWS FROM INNER ASSEMBLY AND RIVETS TO INSTALL GUARD INTO PLACE. -
Page 34: Platform Sub-Assembly - Inner
Exploded Views and Parts Lists Platform Sub-Assembly - Inner DWG. NOTES 1) APPLY LOCTITE THREADLOCKER BLUE 242 B.C. #18822 ON ALL ® ® THREADS DURING RE ASSEMBLY. 2) APPLY "GREASE-MOBILTEMP SHC 32" B.C.#28598 TO PULLEY INNER HOLE AND INSERT INTO SLOT BEFORE BOLTING INTO PLACE. 3) PLACE HINGE B.C. - Page 35 Exploded Views and Parts Lists Platform Sub-Assembly - Inner Side Plate (Front) DWG. NOTES 1) USE LOCTITE THREADLOCKER BLUE 242 B.C.# 18822 ON ALL THREADS ® ® DURING RE ASSEMBLY. ITEM QTY. PART NO. DESCRIPTION 500-0156 HANDRAIL SUPPORT BRACKET 81027-000 SCREW-1/4-20 X 1-1/4 FHSC 25527 SCREW-5/16-18 X 3/4 "...
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Page 36: Platform Sub-Assembly - Outer
Exploded Views and Parts Lists Platform Sub-Assembly - Outer DWG. NOTES 1) USE LOCTITE THREADLOCKER BLUE 242 B.C.# 18822 ON ALL THREADS ® ® DURING RE ASSEMBLY. 2) ROUTE HARNESS THRU STRAIN RELIEF (ITEM #40). 3) ROUTE HARNESS THRU CLAMP (ITEM #30). NOTE: 3 NOTE: 2 ITEM... -
Page 37: Braun ® Limited Warranty
WARRANTY COVERAGE AND WARRANTY COVERAGE TIME PERIODS The Braun Corporation (“Braun”) warranty covers certain parts of this wheelchair lift for three (3) years or 7500 cycles and the cost of labor to repair or replace those parts for one (1) year or 2500 cycles . This limited warranty covers substantial defects in materials and workmanship of the lift, provided that the lift is operated and maintained properly and in conformity with the owner’s manual. - Page 38 Braun Limited Warranty ® Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. HOW TO GET SERVICE To obtain warranty service the owner must do all of the following: 1.
- Page 39 Braun Limited Warranty ® EVENTS DISCHARGING BRAUN FROM OBLIGATION UNDER WARRANTY The following shall completely discharge Braun from any express or implied warranty obligation to repair or replace anything and void this warranty: misuse, neglect, collision, accidents, failure to provide routine maintenance (See Owner’s Manual), unauthorized alteration, off road use, Acts of Nature, damage from weather or the environment, theft, vandalism, tampering, fire, explosions, overloading the product and odometer tampering.
- Page 40 NOTES This page intentionally left blank. Page 38...
- Page 41 "Providing Access to the World" ® Over 300 Braun Dealers Worldwide ® "Providing Access to the World" International Corporate Hdqrs: P .O. Box 310 Winamac, IN 46996 USA 1-800-THE LIFT ® (574) 946-6153 FAX: (574) 946-4670...
- Page 42 All illustrations, descriptions and specifications in this manual are based on the latest product information available at the time of publication. The Braun Corporation reserves the right to make changes at any time without notice. at the time of publication. The Braun Corporation reserves the right to make changes at any time without notice.
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