LORON SERVICE MANUAL / PARTS LIST SINGLE DOUBLE PALLET HANDLER CONTENTS: PAGE 1 Lift Truck Requirements General Installation Procedures 2 Mounting Options Stop Block Adjustments 3 General Weekly Inspection 4-6 Frame Assembly 7-8 Fork Group Assembly 9 Stop Group 10-12 Troubleshooting 425 Hazel St. Kelso WA 98626 (800) 248-6079 Fax (360) 578-9934
LIFT TRUCK REQUIREMENTS CAPACITY Capacity shown on the nameplate is for the attachment only. The combined truck and attachment capacity is provided by the lift truck manufacturer. HYDRAULICS REQUIREMENTS Recommended Truck Pressure: 2000 to 2500 PSI (138 to 172 bar) Hydraulic fluid: petroleum based hydraulic fluid only Hydraulic supply group: includes hoses and take-up - one set for each function Auxiliary valve: 2 Function (Fork Positioning & Side-Shift) = a double auxiliary valve Oil Volume Settings: 6-10 GPM NOTE: EXCESSIVE VOLUME CAN CAUSE PREMATURE WEAR OF ATTACHMENT COMPONENTS GENERAL INSTALLATION PROCEDURES 1. Make sure that the attachment's centering lug is completely seated in truck carriage center notch. 2. Make sure that the lower retainers are sercurely positioned up against the lower ITA bar. LOWER RETAINER Grip both bolts and Squeeze towards center for installation or removal of lower retainer. 3. Attach fork positioning jumper hoses to the fittings as shown. Route hoses so there is enough slack for the frame to side shift. 4. For side shifting attachments install jumper hoses to side-shift cylinder. 5. Standing clear of the attachment, cycle the forks in and out several times to distribute the hydraulic oil, since partially filled hydraulics lines can cause erratic moment. 1
MOUNTING OPTIONS The Single Double can be set up for class II or class III mounting. The class II uses 2 shims and related hardware that are not used on the class III. See the illustration below for proper installation. THE FOLLOWING ITEMS ARE FOR CLASS II ONLY # QTY PART # DESCRIPTION 1 1 107068 SHIM WELDMENT 2 3 1C.0516 BOLT PLT'D 3 3 4E.05 LOCK WASHER 4 1 107821 FLAT BAR (SHIM) TOP HOOK WELDMENT IS FASTENED TO LOWER MOUNTING HOLES TORQUE TO 245 FT LBS (APPLY LOCTITE #242) BRONZE SLIDES 1 3 2 4 STOP BLOCK ADJUSTMENTS Most models have two postions for the stop blocks. The outside position allows the forks to move farther in single mode (example 28" - 32" single range). The inside position provides quicker conversion to double mode (example 28" single range). to reposition the stops remove bolts and lock washers and align the holes in the stops with corresponding holes in the back bar. Torque bolts as shown. OUTSIDE POSITION SHOWN INSIDE POSITION SHOWN BOLTS & LOCK WASHERS TORQUE 125FT-LBS 2
GENERAL WEEKLY INSPECTIONS AND MAINTENANCE 1. Check all hydraulic fittings, hoses, cylinders and valves for leakages - repair or replace as required 2. All bolts should be checked and tightened as required. Check adjusting bolt lock nuts on inner for. If locknut is loose or the bolt is not adjusted correctly adjust so there is approximately.125" between forks when the forks when the forks are close. (See picture below) BOLT LOCK NUT.125" BETWEEN FORKS 3. Operate the attachment from fully closed to fully open several times and check the forks for binding or unusual wear. Correct any problems. See troubleshooting section for more information. 4. Side shift the attachment all the way to the left - grease the upper right hand slide bearing. Side shift the attachment all the way to the left -grease the left hand slide bearing. 5. The frame bearings are self lubricating, although the arms can be lightly coated with general purpose grease to prevent rusting. If operating in dirty environments use dry lube in place of grease. 6. Lubricate the inner fork bearings by applying a small amount of grease to upper slide arms. if operating in a dirty environments use dry lube instead of grease. LUBE HERE 7. The inner fork friction screws may need to be adjusted if the forks are moving when driving around corners. IT IS VERY IMPORTANT THAT THESE SCREWS ARE NOT OVER TIGHTENED AS THIS CAN CAUSE ACCELERATED WEAR OF THE BEARING COMPONENTS. If adjustment is needed remove the screws, clean and apply loctite #242. The screw should be tightened so the fork cannot e moved by hand but not tighter. 3
FRAME ASSEMBLY - 1 # QTY PART # DESCRIPTION 1 2 106979 PULLEY 2 4 106998.1 SLIDE NYLATRON 3 4 107052 CHAIN ANCHOR 4 CONSULT FACTORY HOSE ASSEMBLY LSP 5 CONSULT FACTORY ARM WELDMENT 6 2 11G.08136 BOLT SOCKET HEAD 7 1 106970 HOOK WELDMENT 8 CONSULT FACTORY ARM WELDMENT 9 1 106974 CYLINDER ANCHOR 10 CONSULT FACTORY ARM WELDMENT 11 1 107050.1 COVER WELDMENT 12 8 107853.1 FLAT SLIDE 13 2 17D.08 ESNA NUT LSP 14 1 107466 JUNCTION BLOCK WELD 15 4 3D.10 HEX NUT SLOTTED 16 2 17D.04 ESNA NUT LSP 17 CONSULT FACTORY ARM WELDMENT 18 2 11G.0472 SOCKET HEAD BOLT 19 6 1C.0612 HEX HEAD BOLT LSP 20 2 4E.05 LOCK WASHER LSP 21 1 107350 COVER WELDMENT RH 22 6 109528 LOCK WASHER LSP 23 2 1C.0512 HEX HEAD BOLT LSP 24 1 110168 FRAME WELDMENT 25 1 107820 LOWER SLIDE 26 2 101324 SPHERICAL BEARING 27 2 100047 CYLINDER WASHER 28 2 107001 LOWER QD HOOK 29 4 107003 RETAINER PIN 30 2 107004 SPRING COMPRESSION 31 4 104002 SOCKET HEAD BOLT MODIFIED 32 1 100106 SIDE SHIFT CYLINDER 33 4 100665.53 THRUST WASHER LSP 34 CONSULT FACTORY TOP SLIDE 35 6 11G.1036 SOCKET HEAD BOLT LSP 36 6 16E.10 HIGH COLLAR LOCKWASHER 37 2 101333 HEX NUT SLOTTED 38 2 107363.1 CHAIN ASSEMBLY 39 2 100574.83 COTTER PIN 40 CONSULT FACTORY CYLINDER ASSEMBLY 41 8 106041 BUTTON 42 1 107661 WEAR BAR 43 4 107664.1 SHIM 44 4 11G.0808 SOCKET HEAD BOLT LSP 45 1 108272 SET SCREW BRASS 46 1 7D.06 JAM NUT LSP 47 1 9G.0816 FLAT HEAD SCREW LSP 48 3 100095.05 FITTING 90 O-RING EL LSP 49 1 100676.05 FITTING STRAIGHT O-RING LSP 50 1 100222.1 RESTR FITTING 90 O-RING EL 51 2 100075.14 GREASE FITTING 90 EL 52 1 100222.2 RESTR FITTING 90 O-RING EL 53 2 100785.4 BUSHING LSP 54 CONSULT FACTORY MOUNTING GROUP II 4
FRAME ASSEMBLY - 2 53 18 1 38 33 15 16 42 3 22 19 21 32 27 17 52 24 11 10 8 37 26 39 40 23 20 2 44 4 49 12 41 43 5 14 OPENING RANGE 5
FRAME ASSEMBLY - 3 26 27 39 50 36 35 7 48.03/.06 ADJUST SLOTTED NUT TO ALLOW FOR CLEARANCE AS SHOWN 2 PLACES 37 34 46 45 9 51 25 47 30 13 6 31 28 29 6
FORK GROUP ASSEMBLY - 1 # QTY PART # DESCRIPTION 1 1 CONSULT FACTORY FORK WELDMENT RH 2 1 CONSULT FACTORY FORK WELDMENT LH 3 2 107345.1 SLIDE 4 2 107470 BOLT WELDMENT 5 2 7D.12 JAM NUT 6 1 CONSULT FACTORY INNER FORK WELDMENT RH 7 1 CONSULT FACTORY INNER FORK WELDMENT LH 8 2 107687 SET SCREW 9 2 107938 BRONZE SLIDE 10 2 107631.1 SLIDE NYLATRON 11 2 107008 SLIDE NYLATRON 12 2 107629 SPRING 13 16 11G.1036 SOCKET HEAD BOLT 14 4 107854.1 SHIM FORK BRONZE 15 2 107883 SHIM INNER FORK 16 2 9G.0516 FLAT HEAD SCREW 17 2 17D.05 LOCK NUT 18 2 110464 18 GA. OUTER FORK SHIM 19 2 109731 12 GA. OUTER FORK SHIM NOTE: #18 & #19 ARE INSTALLED IF REQUIRED 7
FORK GROUP ASSEMBLY - 2 2 1 6 7 9 13 TORQUE TO 245 FT LBS APPLY LOCKTITE #242 10 4 8 12 5 14 3 15 11 17 16 18 19 8
STOP GROUP ASSEMBLY # QTY PART # DESCRIPTION 1 1 108929 BAR TAPPED 2 1 107629 SPRING COMPRESSION 3 1 108933 STOP LH 4 1 108950 STOP RH 5 4 11G.0828 SOCKET HEAD BOLT.50-13 X 1.75 6 6 16E.08 HIGH COLLAR LOCK WASHER.50 7 2 11G.0816 SOCKET HEAD BOLT.50-13 X 1.00 6 7 4 1 2 5 6 3 9
Problem: Inner forks do not sequences properly. TROUBLE SHOOTING-1 Solutions: Check the bronze stop blocks for excessive wear. The contact surface on the bronze stop blocks must be flat to operate correctly. This surface can be ground or machined to correct a wear problem. Up to.20 inches can be removed. If there is less than.44" of engagement the blocks should be shimmed. Shims are available from Loron. After shimming check operational clearance. If the block interferes when in the up position a shim will have to be removed..50".06" MAX.44" MIN Check the steel cam bar on the back of the inner forks for excessive wear. If the bar is not smooth and square it should be replaced..125/.100 RAD. MUST BE SMOOTH SMOOTH AND SQUARE 10
Problem: Inner forks lock up or chatter. TROUBLE SHOOTING-2 Solution: If using grease in dirty environment the attachment may be contaminated. Steam clean the attachment and use a dry lube such as silicone or graphite. Inner fork friction screws are too tight. See weekly inspection step #. Check arm slides for nicks or gouges. Correct by sanding or filling. The forks have bronze bearings at the top guide hooks. These are the main guide bushings for the forks and can be shimmed to prevent excessive side movement. The bottom slides can also be shimmed. WARNING: The bottom slides should not be too tight or the forks may lock up or chatter. Check proper clearance by lifting the tip of the fork. There should be approximately.06" to.125" of clearance at the bearing area. BRONZE SLIDES NYLON PAD BRONZE BEARING SET SCREW SHIM BOLT NYLON SLIDES SHIM LOCK NUT 11
TROUBLE SHOOTING-3 Problem: Excessive chain slack. Solution: CHAIN ADJUSTMENT INSTRUCTIONS: 1. Remove cover bolts and cover. 2. Open the arms to the approximate position shown in the picture. WARNING: KEEP HANDS CLEAR WHILE OPENING THE ARMS. 3. Remove Chain Guide. 4. Remove lock bolt and nut. 5. Using an open-end wrench, tighten the adjusting nuts to remove chain slack. There should be little or no slack in the chain when adjusted correctly. Do not over tighten. ADJUSTING NUTS LOCK BOLT AND NUT CHAIN GUIDE 12