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THIEMAN Series TVLR 125A, Owner'S Manual

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THIEMAN Series TVLR 125A Owner'S Manual Download Page 9

9.

MAINTENANCE GUIDE

The following inspection and maintenance operations should be performed at the recommended 

intervals or anytime the liftgate shows signs of abuse and improper or abnormal operation.

MONTHLY INSPECTION AND MAINTENANCE

Operate the liftgate throughout its entire operational cycle and check the following:

1.  Check that there are no unusual noises or vibrations.

2.   Check that the platform is level front to back and side to side when raised to bed height. If 

front to back adjustments are necessary, this can be done by adjusting nuts (A) on U-bolt 

(B) on platform block (C). See figure 2. If side to side adjustments are necessary, this can be 

done by adjusting nuts (D), nylon insert locknuts (E), and lockwashers (F) on tension rods 

(G) on anchor bracket (H). See figure 2.

IMPROPER MAINTENANCE OF THIS LIFTGATE MAY RESULT IN SERIOUS PERSONAL 

INJURY AND/OR DEATH.  Never use a liftgate, that has not been properly maintained. 

Follow all maintenance outlined in this manual, beginning with “Maintenance Guide” thru and 

including “Decal Maintenance - Inspection and Location of Decals”.

!

WARNING

Summary of Contents for Series TVLR 125A

Page 1: ...HICLE PLEASE READ AND UNDERSTAND THE CONTENTS OF THIS MANUAL BEFORE OPERATING THE EQUIPMENT HIEMAN TAILGATES INC 600 East Wayne Street Celina Ohio 45822 Phone 419 586 7727 Fax 419 586 9724 www thiemantailgates com NTEA T H E A S S O C I A T I O N F O R T H E W O R K T R U C K I N D U S T R Y TM M E M B E R ...

Page 2: ...________________________________ NOTE When Ordering Parts Be Sure To Include This Information Your Thieman Tailgate is constructed of top quality material and is warranted to be free from defects in material and workmanship under normal use With routine maintenance and proper operation this liftgate will provide long lasting service and dependability PARTS ORDERING PROCEDURE When ordering parts pl...

Page 3: ...ury or death Each Signal Word is explained below SIGNAL WORDS used in this manual DANGER Indicates a hazardous situation which if not avoided will result in death or serious injury Related information will follow WARNING Indicates a hazardous situation which if not avoided could result in death or serious injury Related information will follow CAUTION Indicates a hazardous situation which if not a...

Page 4: ...Altering this product will void all warranties and may damage the liftgate or even cause serious injury If any repairs adjustments or maintenance not covered in this manual are required contact your nearest Thieman distributor or call Thieman at 419 586 7727 5 THIS IS NOT A PERSONNEL LIFT Because of the pinch point between the platform and the truck fall hazards unstable loads etc riding the lift ...

Page 5: ...rroundings and THESE OBJECTS COULD ALSO STRIKE OR CRUSH OPERATORS OR BYSTANDERS 11 NEVER step on or place loads on the ramp portion of any liftgate platform includes all ramp styles unless the platform is lowered completely to the ground and the entire platform and ramp are supported by the ground 12 NEVER lift or lower unstable loads 13 NEVER operate liftgate if platform load surface is slippery ...

Page 6: ...perly retained objects may fall from the vehicle and pose serious traffic hazards and larger objects could shift and damage the liftgate or truck 21 Any time the vehicle is washed this liftgate MUST be inspected to MAKE SURE all parts are properly lubricated and have the appropriate protectants Failure to replace lubricants and protectants after washing the vehicle may lead to improper operation o...

Page 7: ...tributed then the heaviest portion should be closest to the edge of the platform nearest the truck NEVER allow any part of the load to extend beyond the edges of the platform s flat load surface NEVER allow any part of the load to extend over or on the tapered ramp portion of the platform unless the platform is lowered completely to the ground and the ramp is supported by the ground WARNING DO NOT...

Page 8: ...ions if so equipped Don t let them fall 3 RAISE OR LOWER G Use toggle switch or other supplied control to raise or lower liftgate 4 STORE FOR TRANSIT H Reverse Step 2 above Fold platform to vertical position and raise folded liftgate until locking cams on resting plates are rotated up and stowage slot in resting plates are exposed I Lower liftgate until locking cams rotate back down J Reinsert cur...

Page 9: ...o side when raised to bed height If front to back adjustments are necessary this can be done by adjusting nuts A on U bolt B on platform block C See figure 2 If side to side adjustments are necessary this can be done by adjusting nuts D nylon insert locknuts E and lockwashers F on tension rods G on anchor bracket H See figure 2 IMPROPER MAINTENANCE OF THIS LIFTGATE MAY RESULT IN SERIOUS PERSONAL I...

Page 10: ...ings two piece platform only 5 Check that all platform pivot pins are in place and retained by their proper retainers The street side platform pivot pin Adjusting Bracket is bolted to the slider pivot with a 3 8 bolt There is a formed retainer welded to the street side of the platform which wraps around the slotted plate of the Adjusting Bracket in the stored position and holds the street side pla...

Page 11: ...pread lubricant more evenly 14 Torsion bar adjustment See figure 3 A Place platform in stowed vertical position B Remove 5 8 diameter bolt A from center of tension adjusting bracket C Place square breaker bar in the square hole of the adjusting bracket pin D Turn breaker bar counterclockwise to relieve tension on 3 8 diameter bolt B and remove it from the bracket E To increase tension rotate brack...

Page 12: ...result in excessive wear of stow bars and resting plates SEMI ANNUAL INSPECTION 1 Perform the procedures outlined in the Monthly Inspection and Maintenance 2 Inspect pump motor by A Disconnecting battery cable B Remove motor end cover C Examine the armature brushes for wear Brushes should be replaced if they are less than 1 8 long D Clean all residue out from inside of the motor housing E Apply se...

Page 13: ...ing 4609 4 Operating Decal standard 4650780 5 Capacity Decal 1250 4650060 5 Capacity Decal 1600 4650750 6 Warning Decal pinch point 4650790 7 Caution Decal cover 4650760 8 Warning Decal working area 4650770 9 Reflector 3 5705 10 Thieman Nameplate 4650801 11 Toggle Switch Decal 1 4650820 12 Wiring Decal 4617 13 Warning Decal high pressure 4620 14 Lubrication Decal 4662 15 Lube Location Decal 4 4663...

Page 14: ...14 MAIN FRAME ASSEMBLY ...

Page 15: ... 2 2 12 8120382 38 Lockwasher 2 2 13 8180126 38 x 1 50 Screw 2 2 14 4318 002 Battery cable 1 1 15 4477 Solenoid 1 1 16 31558 Cylinder Retainer Weld 1 1 17 8180022 25 x 1 Screw 4 4 18 8120380 25 Lockwasher 4 4 19 8120375 25 Nut 4 4 20 5701960 Grommet 3 3 21 8456922 50 x 1 50 carriage bolt 2 2 22 2103160 Locking cam 2 2 23 8120396 50 Flatwasher 2 2 24 8103 021 50 Lock nut 2 2 25 31765 sprocket housi...

Page 16: ...004 Chain SS 90 56 BH 1 10 4108 005 Chain SS 95 56 BH 1 10 4108 006 Chain SS 100 56 BH 1 10 4108 010 Chain SS 90 46 BH 1 10 4108 011 Chain SS 95 46 BH 1 10 4108 012 Chain SS 100 46 BH 1 10 4108 001 Chain SS 80 56 BH 1 10 4108 008 Chain SS 80 46 BH 1 11 4108 002 Chain CS 80 56 BH 1 11 4108 007 Chain CS 80 46 BH 1 11 4108 003 Chain CS 90 95 100 56 BH 1 11 4108 009 Chain CS 90 95 100 46 BH 1 12 8106 ...

Page 17: ... Front Wear Pad 4 4 8103 019 25 Locknut 16 5 8109 012 Screw 25 x 75 16 6 2013 Adjustment Angle 2 7 8120388 38 Flatwasher 8 8 8180126 38 16 x 1 50 Screw 4 9 8120382 Lockwasher 38 4 10 8120377 38 16 Nut 4 11 8106 016 38 Int Ext Tooth Lockwasher 8 12 3106470 Roller Asm 4 13 5781016 Retaining ring 4 SLIDER ASSEMBLY Used with aluminum platforms requiring a spring assembly ...

Page 18: ...see note 1 1 Notes 1 Requires one spring assembly and appropriate RH slider Item Part Number Description Qty 2 2329 Stop 1 3 8120380 25 Lockwasher 2 4 8180022 25 x 1 00 Screw 2 5 3199 Pin retainer 1 6 8180120 38 x 75 Screw 2 7 8271713 62 x 1 00 Screw 1 8 8121574 62 Lockwasher 1 9 8130999 62 Flatwasher 1 10 3108980 Adjusting bracket 1 11 5101 001 Torsion bar 85 platform 1 11 5101 002 Torsion bar 90...

Page 19: ...6 Platform 1 1 3407 031 7572 Platform see note 1 1 1 3407 010 8542 Platform 1 1 3407 032 9572 Platform see note 2 1 1 3407 011 8548 Platform 1 2 2329 Stop 1 1 3407 012 8554 Platform 1 3 8271713 62 x 75 Screw 1 1 3407 013 8560 Platform see note 1 1 4 8121574 62 Lockwasher 1 1 3407 014 8566 Platform see note 1 1 5 8130999 62 Flatwasher 1 1 3407 015 9030 Platform 1 6 8109 001 25 x 1 00 Screw SS 2 1 3...

Page 20: ...n 60 66 72 deep alum 2 3 4101 012 Chain 30 36 42 deep steel or alum 2 4 5702300 Protective sleeve 2 5 5701910 44 x 1 50 Bolt 2 Item Part Number Description Qty 1 5793150 U BOLT 1 2 9414073 Locknut 2 3 5101120 Spring 1 Item Part Number Description Qty 1 5770 Hyd Damper 1 2 8104 004 Screw 31 18 x 1 75 1 3 8104 012 Screw 31 18 x 1 1 4 8103 013 Locknut 31 18 2 5 8107 004 Flatwasher 31 2 ...

Page 21: ...21 HOUSING COVERS ...

Page 22: ...er Lights 1 3 27158 002 Steel Cover 90 W Upper Lights 1 3 27158 003 Steel Cover 95 W Upper Lights 1 3 27158 004 Steel Cover 100 W Upper Lights 1 3 2711411 Alum Cover 80 W Upper Lights 1 3 2711412 Alum Cover 90 W Upper Lights 1 3 2711413 Alum Cover 95 W Upper Lights 1 3 2711414 Alum Cover 100 W Upper Lights 1 4 31475 LED Stop Turn Taillight 4 4 5 43060 LED Back up light 1 1 6 5702270 Plastic square...

Page 23: ...y 1 31449 001 Cam Follower Asm 1 2 31449 002 Cam Follower Asm 1 3 5108 Spring 4 4 31460 Linkage Weld LH 1 5 5067 Pin 2 6 31459 Handle Weld RH 1 7 5510 Bearing 2 8 5703 Nylon Pad 2 9 2522 001 Cam Shafts 1 9 2522 002 Cam Shafts 1 9 2522 003 Cam Shafts 1 9 2522 004 Cam Shafts 1 ...

Page 24: ...1 5056 PIN 1 2 8107 011 WASHER 1 3 5781017 SNAP RING 2 4A 31277 001 HINGE ASM ALUM MAIN ALUM EXT 1 4B 31277 002 HINGE ASM ALUM MAIN ALUM EXT 1 5A 31279 001 HINGE ASM STEEL MAIN ALUM EXT 1 5B 31279 002 HINGE ASM STEEL MAIN ALUM EXT 1 RIGHT SIDE SHOWN LEFT SIDE OPPOSITE ...

Page 25: ...ps with system under load at different locations between the liftgate and battery source to locate bad connections along the battery cable Trace ground cable connections also to locate improper connection s along the ground path Make sure the ground cable is installed going from the 5 16 tapped hole in the aluminum pump base marked GND to the liftgate mounting plate scrape paint to bare metal for ...

Page 26: ...te may not raise at all see Problem 1 and will not be able to develop the rated relief pressure Low voltages can cause motor start solenoids to overheat and internally weld the contacts closed which can lead to motor overheating and pump failure DO NOT run the liftgate under low voltage and or bad ground conditions e Improperly adjusted or defective main relief valve See section c above for relief...

Page 27: ... lower coil valve assembly is bad To check to see if the coil is defective remove the green and purple wires from the spade terminals on the lower coil and check the resistance between these spade terminals 3 6 4 4 Ohm is acceptable Note Low resistance can cause the 20 amp fuse to blow see Problem 1 part b and high resistance will lower the coils magnetic force and may not shift the valve If prope...

Page 28: ... sliders should be removed from the rails to thoroughly clean the rails slider wear pads and rollers All contaminants must be removed from the rail including grease rust paint overspray etc such that only bare metal remains Lubricate the pads and rails before reassembly See step C c Wear pads are worn down or embedded with contaminants If the wear pads are worn down to the mounting screw heads or ...

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