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3-16

F-691-0913 Edition

OPERATING INSTRUCTIONS

Air Ride Operation

1.

Trailer air pressure must be maintained above 90 PSI 
before operating. 

PROTECTION VALVES

 are used 

to maintain 65 PSI air brake pressure during 
suspension or remote system air loss.

2.

The semitrailer is equipped with a ride height control 
valve located on rear axle.

CAUTION

Manual Height Control Operating 
Instructions (825 and 835 Ag (Tail 
Plate)

Figure 3-7: Air Ride Switch

(825D/835D Ag)

Normal Highway Operation

When vehicle is in motion, switch must be in “OFF” 
position for normal height control valve automatic 
operation 

(See Figure 3-7.)

Raising or Lowering

To raise or lower vehicle, place switch in “ON” position 
and regulate the height of the vehicle with the hand valve 

(See Figure 3-7.)

If suspension air loss should occur, completely 
deflate suspension and temporarily operate on 
the air springs internal rubber bumpers. Carefully 
proceed to the nearest semitrailer service facility. 
To deflate the air suspension, disconnect the 
lower connection on the linkage of the automatic 
air valves. Rotate the valve control arms down 
about 45

o

 to exhaust the air. To restore to normal 

operation, simply reverse the procedure.

AC-77-M-1 AND AC-77-S-1

OPERATING INSTRUCTIONS

When vehicle is in motion, switch

must be in “off” position for nor-
mal height control valve automatic

operation.

NORMAL HIGHWAY OPERATION

To lower vehicle place switch in

“on” position.

LOWERING

90044207

825-835 ag air ride

SWITCH

CONTROL HANDLE

Summary of Contents for 825D Series

Page 1: ...F 691 0913 09 2013 LANDOLL CORPORATION 1900 North Street Marysville Kansas 66508 785 562 5381 800 428 5655 WWW LANDOLL COM Model 825D 835D Series Detachable Semitrailer Operator s Manual...

Page 2: ......

Page 3: ...3 5 Towing the Semitrailer 3 7 Parking the Trailer 3 8 Uncoupling Towing Vehicle from Semitrailer 3 8 Trailer Lift Lever 3 8 Pull Out Extensions 3 9 Swingout Outrigger Platform Extension Set Up 3 11...

Page 4: ...Bulkhead Option 3 23 Anti Lock Brake System ABS 3 23 Cold Weather Operation 3 24 Hot Weather Operation 3 25 4 Maintenance and Lubrication Maintenance Schedule 4 1 Inspection 4 1 Lubrication 4 1 Maint...

Page 5: ...tic Slack Adjuster 4 21 Operational Check 4 21 Replacing Slack Adjuster 4 21 Adjusting Slack Adjuster 4 22 Hub and Drum Maintenance 4 23 Wheel Bearing Lubrication and Adjustment 4 25 Adjustment 4 25 T...

Page 6: ...iv F 691 0913 Edition...

Page 7: ...ill void your warranty IF YOU HAVE ANY QUESTIONS CONTACT LANDOLL CORPORATION 1900 NORTH STREET MARYSVILLE KANSAS 66508 or phone 785 562 5381 or 800 428 5655 or FAX 888 527 3909 CHAPTER 5 is a troubles...

Page 8: ...TE Make sure you read and understand the information contained in this manual and on the machine signs decals before you attempt to operate or maintain this vehicle The safety statements contained in...

Page 9: ...D 12 0 HYDRAULIC TILT STD 10 9 HYDRAULIC TILT OPTION MODEL 835D 12 0 HYDRAULIC TILT 10 9 HYDRAULIC TILT OPTION KING PIN SETTING MODEL 825D 835D 15 LOADED GROUND CLEARANCE MODEL 825D 835D 7 LOADED DECK...

Page 10: ...TRICTED BY FACTORS SUCH AS GROSS AXLE WEIGHT RATINGS GAWR OR STATE AND FEDERAL REGULATIONS TIRE BRAKE AXLE OR WHEEL SELECTION MAY ALSO LIMIT CAPACITY TRACTOR HYDRAULIC POWER SUPPLY MUST BE CAPABLE OF...

Page 11: ...T AND ADAPTER BOLTS DESIGNATED W NEWAY ON BOLT HEAD 800 FT LBS DESIGNATED W HOLLAND NEWAY ON BOLT HEAD 550 FT LBS SHOCK ABSORBER MOUNTING 150 FT LBS AIR SPRING MOUNTING 1 2 35 FT LBS 3 4 35 FT LBS WHE...

Page 12: ...62 80 100 1 2 20 40 50 65 81 90 112 9 16 12 55 62 80 100 110 137 9 16 18 60 75 90 112 130 162 5 8 11 75 94 110 137 170 212 5 8 18 85 106 130 162 180 225 3 4 10 130 162 200 250 280 350 3 4 16 150 188...

Page 13: ...FOOT POUNDS PARKER BRAND FITTINGS Dash Size 37 Degree JIC O Ring ORS O Ring Boss ORB 4 11 13 15 17 13 15 5 14 16 21 23 6 20 22 34 36 25 29 8 43 47 58 62 40 44 10 55 65 100 110 57 5 62 5 12 80 90 134...

Page 14: ...2 6 F 691 0913 Edition STANDARD SPECIFICATIONS...

Page 15: ...onstant powered by the auxiliary blue circuit of the seven way electrical connector with backup power from the stop lamp red circuit and ground through the white wire It is necessary that the blue cir...

Page 16: ...OKS FRAME RECEIVER HOOK HYDRAULIC CONTROLS AND OPER INSTR ACCESS COVER HYDRAULIC AND PNEUMATIC VALVES REAR FLAG HOLDER SCALE O MATIC OPTION AIR RAISE LOWER 825D 835D AG OPTION ABS LIGHT REAR BUMPER SE...

Page 17: ...t the semitrailer hydraulic power engine Use the TRAILER LIFT lever to raise or lower the kingpin plate sufficiently to set proper coupling height See Trailer Lift Lever on page 3 8 Drain all air and...

Page 18: ...king brakes IMPORTANT Keep brakes engaged for remainder of hookup checkout procedures and parking Connecting Tractor Services to the Semitrailer 1 Connect the towing vehicle 7 pole electrical plug to...

Page 19: ...pair the defect before transporting 7 Check the oil in each hub for proper level and freedom from contamination If hubs are contaminated with water dirt or some other foreign material clean before tra...

Page 20: ...RK LIGHT SWITCH OPTION LOAD BLOCK RELEASE BUTTON CARRIER LOCK RELEASE BUTTON SERVICE GLADHAND W SHUTOFF EMERGENCY GLADHAND W SHUTOFF 825 835d hyd controls WIRED REMOTE CONTROL RECEPTACLE WINCH HYDRAUL...

Page 21: ...railer exceeds 4 mph If the warning lamp does not go off a fault exists in the semitrailer ABS Once the vehicle speed exceeds 4 mph the light should remain off unless a fault occurs or the keyswitch i...

Page 22: ...er wheels are chocked If tractor does not disconnect repeat steps 4 and 5 6 Pull the tractor away from the semitrailer DANGER Trailer Lift Lever The TRAILER LIFT lever See Figures 3 1 and 3 3 is locat...

Page 23: ...be with the spring loaded retaining pin Reference FMCSR Part 393 87 and applicable state and local regulations concerning flags on projecting loads 5 If required display oversize load signs Do not ope...

Page 24: ...tion OPERATING INSTRUCTIONS Figure 3 5 Swingout Outrigger Platform Extension OUTRIGGER FLAG HOLDER WELDMENT MAXIMUM WIDTH NOT TO EXCEED TRAILER WIDTH CENTERLINE OF TRACKS OR TIRES CENTERLINE OF TRACKS...

Page 25: ...Do not operate if any extension is not locked in place Inspect all extensions to insure each is locked securely in position 1 Top of extension planks must be flush with main deck boards 2 Centerline o...

Page 26: ...3 12 F 691 0913 Edition OPERATING INSTRUCTIONS Figure 3 6 Gooseneck Attachment to Frame GOOSENECK FRAME hookup...

Page 27: ...emitrailer to the ground 9 Continue with TRAILER LIFT lever in the down position until the gooseneck lift arms rest on the tractor frame rails A clearance of 1 8 to 1 4 inch should be obtained between...

Page 28: ...the semitrailer load must be securely tied to the deck front and rear using the D rings on the semitrailer frame The load must be tied with chain or ratchet straps sufficient to withstand the weight...

Page 29: ...following the steps outlined in Preparation for Loading and Unloading on page 3 13 2 Remove the chains and binder or the tie straps from the load 3 Drive the load off the front of the semitrailer or r...

Page 30: ...r lower vehicle place switch in ON position and regulate the height of the vehicle with the hand valve See Figure 3 7 If suspension air loss should occur completely deflate suspension and temporarily...

Page 31: ...n system is in operating position Axle Lift Operation Axle Up 1 With the manual ON OFF valve in the ON position the axle lift is in operating position and raises the axle Figure 3 8 Air Raise Lower De...

Page 32: ...CHAMBER AIR RAISE LOWER LEVER AG STYLE FRAME BRASS COUPLER TO SUSPENSION AIR BAG BLACK COUPLER FOR TIRE INFLATION OPTION BLUE COUPLER TO AIR TANK folded and unfolded flip AC 77 M 1 AND AC 77 S 1 OPERA...

Page 33: ...osition Flip Axle Down 1 Reconnect flip axle electrical harness to trailer frame and turn on air supply to brake chambers red and white couplers 2 To flip to road position use the manual height contro...

Page 34: ...he air fitting b To engage the clutch winch operation Remove all air pressure 0 psi from the air fitting 1 The winch is not designed or intended to be used for lifting or moving people Using it this w...

Page 35: ...11 Air Hydraulic Kickout Free Spool Clutch Operation Braden 1 The WINCH CLUTCH HANDLE See Figures 3 12 and 3 13 is located on the right or curb side end of the winch assembly The function of the winc...

Page 36: ...LOCKING CHANNEL HEX HEAD CAP SCREW BUSHING SPACER HEX NUT COVER HEX HEAD CAP SCREW SPACER HEX HEAD CAP SCREW SNAP LOCK PIN BULKHEAD WELDMENT FRONT EXTENSION MOUNT WELDMENT COTTER PIN SUPPORT PIN SUPP...

Page 37: ...specifies the ABS warning light be mounted near the rear of the left side of the trailer See Figure 3 1 Decal or lens marking with ABS to identify the lamp The lamp must illuminate one time whenever p...

Page 38: ...found in bearings electrical systems and air systems Moisture attracted by warm parts can condense collect and freeze to immobilize equipment The truck semitrailer operator must always be alert for in...

Page 39: ...ure to the sun will shorten service life of rubber components i e tires light and hose grommets hoses etc and paint life 3 Check tire pressure early in the day before beginning operations while the ti...

Page 40: ...3 26 F 691 0913 Edition OPERATING INSTRUCTIONS Page Intentionally Blank...

Page 41: ...leshooting Guide on page 5 1 to check for SYMPTOMS and PROBLEMS of any trailer system not functioning correctly or where wear distortion or breakage are found Administer REMEDY according to the right...

Page 42: ...ition MAINTENANCE AND LUBRICATION Figure 4 1 Lubrication Points 1 of 2 825c lube assy CYLINDER END BUSHINGS 3 FOUR PLACES LOAD BLOCK PIVOTS 3 TWO PLACES HUB OIL 5 BOTH SIDES CARRIER PIVOT 3 TWO PLACES...

Page 43: ...2 CENTRALIZED GREASE SYSTEM LOCATION CAM BUSHINGS SHAFT SLACK ADJUSTERS 3 CENTRALIZED GREASE SYSTEM TANDEM AXLE 825C 49 825C 51 835C 48AG 835C 51AG 835C 53AG 835C S 53AG 825 835B lube points p2 2012 C...

Page 44: ...tan 220 SAE 90 Phil Gear Lube 220 SAE 90 Meropa 220 SAE 90 3 ALL YEAR Lit Multi purpose Grease Rondex Multi purpose Grease Phil Lube M W Grease MarFax All Purpose 4 ALL YEAR Industrial Oil 32 Estic 32...

Page 45: ...all parts of the trailer Rinse degreasing solution off with cold water 3 Inspect semitrailer for cause of any reported troubles WARNING 4 Scrape sand prime and repaint areas where finish is missing or...

Page 46: ...EAR I I f WHEEL LUG NUTS I T I I T b SUSPENSION ALIGNMENT I I UNDERCARRIAGE ROLLERS L 3 c HYDRAULIC OIL I I R 1 c HYDRAULIC FILTER R R HOSES Inspect Replace as needed I I I R WINCH GEAR CASE I I 2 c I...

Page 47: ...arts promptly Hydraulic System General 1 Check the oil level of the tractor wet kit weekly or after any leakage See Table 4 1 for proper hydraulic oil Check the hydraulic oil level with hydraulic cyli...

Page 48: ...6 ABS ECU VALVE GRN W WHT STRIPE BLU RED WHT DS23 ABS WARNING LIGHT GRN W WHT STRIPE WHT J3 DS9 MARKER REAR BED LEFT DS7 MARKER LEFT TURN CENTER DS5 MARKER FRONT BED LEFT JUNCTION BOX MAIN J2 J7 S1 WO...

Page 49: ...ER YELLOW DS34 LEFT TURN YELLOW DS10 RIGHT REAR BED MARKER YELLOW DS35 RIGHT TURN YELLOW DS11 LEFT REAR SIDE MARKER RED DS12 RIGHT REAR SIDE MARKER RED J1 FRONT MAIN CONNECTOR DS13 LEFT STOP TAIL OUTE...

Page 50: ...are metal surfaces Paint grease wax and other coatings act as insulators Replacement lamps must be equivalent to the factory installed lamp Suspension Maintenance See Figures 4 5 and 4 6 for Tandem Ax...

Page 51: ...MAINTENANCE AND LUBRICATION 4 11 Figure 4 5 Tandem Axle Air Ride Suspension System m105141bop EXHAUST PORT IN FROM AIR SUPPLY OUT TO AIR BAGS AIR TANK LOCATED ON BUMPER...

Page 52: ...0913 Edition MAINTENANCE AND LUBRICATION Figure 4 6 Tandem Axle w Flip Air Ride Suspension System EXHAUST PORT IN FROM AIR SUPPLY OUT TO AIR BAGS CONNECT TO BUSHING IN REAR BUMPER FLIP AXLE EXTENSION...

Page 53: ...ined 6 Loosen the 1 4 adjusting lock nut located on the adjusting block allowing the control arm to move approximately 1 inch Move the adjusting block until holes align then insert locating pin See Fi...

Page 54: ...xle Double point end against the inner and outer wheel bearing surfaces of the spindle being checked and the other point on the inner bearing surface on the other spindle See Figure 4 8 3 Move the axl...

Page 55: ...MAINTENANCE AND LUBRICATION 4 15 Figure 4 9 Examples of Camber Figure 4 10 Checking Axle Alignment check...

Page 56: ...the suspension or axles must be replaced immediately Air Ride Suspension Axles The air ride suspension is aligned and adjusted at the factory and it should not be necessary to align the axles If howev...

Page 57: ...a service chamber and an emergency chamber or spring chamber Service brake chambers should be disassembled and cleaned at 50 000 miles or yearly The diaphragm and any marginal parts should be replaced...

Page 58: ...in Caging the Power Spring on page 4 18 2 Position the inlet ports by loosening the service chamber clamp bands and rotating center housing such that ports are located according to alignment marks mad...

Page 59: ...imately 180o to relieve the tension on the shoe keeper springs Remove the springs and slip the shoes off the anchor pins 8 Remove camshaft lock ring spacer washer s and camshaft 9 After removing the s...

Page 60: ...4 20 F 691 0913 Edition MAINTENANCE AND LUBRICATION Figure 4 13 Axle and Brake Assembly...

Page 61: ...rake application 6 Measure the movement of the push rod from the completely released position to the applied position by marking the push rod where it exits the air chamber before and after applicatio...

Page 62: ...to length 13 If the push rod is not fully engaged in clevis body install a new push rod cut to length 14 Install the slack adjuster on the cam shaft 15 Rotate the manual adjuster shaft CW until the sl...

Page 63: ...ked b The brake surface is heat checked grooved or worn beyond the rebore limit or the maximum diameter c The back plate is cracked d The bolt holes are elongated e The brake drum has been severely ov...

Page 64: ...ve the hub support allowing the hub to rest on the bearings l Install and adjust bearings See Wheel Bearing Lubrication and Adjustment on page 4 25 m Install the hub cap with the proper gasket Tighten...

Page 65: ...ng wheel to insure proper seating of the bearings and cups in the wheel hub 6 Loosen the inner adjustment nut so that the wheel will turn freely 7 Retighten the inner adjustment nut to 50 ft lbs while...

Page 66: ...adjusting has been completed Remove any foreign objects from between duals Tire Matching Both tires on the same spindle must be the same size in order to properly distribute the load and braking forc...

Page 67: ...MAINTENANCE AND LUBRICATION 4 27 Figure 4 19 Mounting Tires and Wheels Figure 4 20 Stud Tightening Sequence 10 BOLT 1 2 6 3 4 5 8 10 9 7 stud tight 10...

Page 68: ...rusting and deterioration of the cable See Table 4 1 for lubrication specifications Inspect the winch mechanism thoroughly each week to insure safe efficient operation WARNING Hydraulic Engine Package...

Page 69: ...ires Replace wire Ground wire loose Clean and tighten ground LIGHTS FLICKERING Wires shorted or loose Locate insulate replace or tighten Grounding through fifth wheel Locate broken ground wire tractor...

Page 70: ...SHOULDERS Under inflation Increase inflation to correct PSI Check axle alignment See Tire Inflation on page 4 26 Overload Loads are above rated tire capacity DO NOT load above rated tire capacity SHO...

Page 71: ...fective parts Axles not parallel Re align axles AIR RIDE HEIGHT PROBLEMS TOO HIGH Axle to control valve linkage Readjust linkage Height Control Valve internal leak Repair or replace valve TOO LOW Axle...

Page 72: ...te per Figures 4 1 and 4 2 Worn brake shoe bushing Replace bushing Brake drum distortion Replace drum Broken brake chamber spring Replace spring Brake chamber pushrod binding Re align brake chamber br...

Page 73: ...XCESSIVE LEAKAGE WITH BRAKES RELEASED Relay emergency valve leaking Repair or replace valve Leaking tubing or hose Replace defective part EXCESSIVE LEAKAGE WITH BRAKES APPLIED Relay emergency valve le...

Page 74: ...s Also check for operating conditions or loads that create severe or excessive brake applications BRAKES PULL TO EITHER SIDE Drums of different diameters Replace with drums of same diameter Foreign ma...

Page 75: ...Excessive load Check unit specifications for load limit See Standard Specifications on page 2 1 Slipping or broken pump drive Repair or replace couplings Check for alignment SYSTEM OPERATES ERRATICALL...

Page 76: ...on line and component seals for suction leaks Replace defective parts NOISY PUMP Low incorrect foamy oil Replace clean or add oil as needed Suction line plugged Clean out obstruction or replace line F...

Page 77: ...TROUBLESHOOTING GUIDE 5 9 Notes...

Page 78: ...5 10 F 691 0913 Edition TROUBLESHOOTING GUIDE...

Page 79: ......

Page 80: ...825D 835D Series Detachable Trailer Operator s Manual Re Order Part Number F 691 0913 LANDOLL CORPORATION 1900 North Street Marysville Kansas 66508 785 562 5381 800 428 5655 WWW LANDOLL COM F 691 091...

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