SERVICE MANUAL / PARTS LIST
Contents
1. CYLINDER SERVICE Prior to assembly lubricate seals cylinder bore and rod with STP Inspect all parts for scratches nicks and gouges replace all damaged components Inspect cylinder bore and rod for scoring replace if scored Avoid damage to seal grooves use a dull screwdriver for seal removal Torque piston nut to 110 FT LBS 15 3 kg m 9 CLAMP ADJUSTMENTS CLAMP FORCE CHECK ADJUSTMENT 1 Check water pressure If out of operating range fill with Loron Pneumatic Fluid pump 111785 Note when operating in below freezing temperatures us RV antifreeze in place of water 2 Check the clamp force the most accurate method is to use the Loron force plate while clamping on an actual load The force can also be checked using a stationary fixture this is not as accurate because the fixture is stiff and doesn t simulate a load AIR BLEED SIDE SHIFT FORCE CONTROL OPEN FORCE CHECK ADJUSTMENT Open the arms against a force fixture and adjust for desired maximum force SIDE SHIFT FORCE ADJUSTMENT 1 Clamp on the heaviest load that will be handled 2 Adjust the side shift force down until the arms stop 3 Turn the adjusting screw one turn in FILL VALVE OPEN FORCE CONTROL WATER PRESSURE GAUGE CLAMP FORCE CONTROL VALVE AIR BLEED 62 CONTROL VALVE ET Ae u um SHE 111627 REDUCE REL VALVE TORQUE 15 20 FT LB SEAL KIT 112065 103813 FLOW DIVIDE2. 1 1 111193 CLAMP VALVE 12 1 100674 0377 HOSE ASSEMBLY 06 06 06 2 2 258 0524 BUTTON HEAD BOLT LSP 13 1 100674 0270 HOSE ASSEMBLY 06 06 06 STRAIGHT THREAD ADAPTER 3 4 10067605 gt RING 6 6 LSP 14 3 100095 05 90 FITTING 6 O RING ELL 4 1 100674 0210 HOSE ASSEMBLY 06 06 06 LSP 15 1 100674 0250 HOSE ASSEMBLY 06 06 06 5 1 111085 DIRECTION VALVE ASSEMBLY 16 1 100674 0342 HOSE ASSEMBLY 7106 06 06 6 1 100232 05 iiam RUN TEE FITTING 6 17 2 1C 0616 HEX HEAD BOLT 18 2 4E 06 LOCKWASHER STRAIGHT THREAD ADAPTER 7 1111073055 ELLPIPE TO SWIVEL 8 1 111123 IN LINE CHECK VALVE 9 1 10043205 MALE ADAPTER FITTING 10 1 100674 0240 HOSE ASSEMBLY 06 06 06 MAXIMUM CLAMP 1 FORCE RELIEF OPEN FORCE CONTROL SIDE SHIFT FORCE CONTROL 202 E E 2 CLAMP OPEN CLOSE CLAMP FORCE ADJUSTMENT SIDE SHIFT FRONT VIEW 8 CYLINDER ASSEMBLY para s QTY PART DESCRIPTION 9 1 100029 2 O RING LSP 1 111375 2 TUBE WELDENT 10 1 100028 2 BACK UP RING LSP 2 1 111379 2 ROD 11 1 100029 201 O RING LSP 4 1 111482 SEAL KIT INCLUDES 12 1 27D 10 NUT SELF LOCK LSP 5 1 100032 6 WEAR RING LSP 13 1 100027 7 LOCK WIRE 6 1 102099 1 POLY PAK B LSP 14 1 111374 PISTON 7 1 100031 7 POLY PAK LSP 15 1 111373 GLAND 8 1 102098 5 ROD WIPER LSP 16 1 111380 WASHER CYLINDER R RETRACTED E EXTENDED S STROKE PE SOLA Ths NON REN 555555 LE j 24 EL bade LA N AN NNNNNNNNNNNNNNNNNNNNNNNNNN ANE KW KAKA SM
3. 18 111031 111019 10 0820 10 0812 108088 103210 1000 109211 1 109212 1 103752 CLAMP ASSEMBLY 3 DESCRIPTION ARM WELDMENT RH ARM WELDMENT LH CONTACT PAD RETAINING NUT CONTACT PAD BOLT LSP BOLT LSP SPRING WASHER FLAT SLIDE ANGLE SLIDE SHIM AS REQUIRED SLIDE BUTTON QTY PART 1 3 111350 2 34 111295 3 1 111290 0025 4 1 111296 5 1 111543 0100 6 1 111292 7 1 111290 0184 8 1 111293 9 4 111290 0071 10 1 111290 0155 11 1 111290 0782 12 1 111290 0870 13 1 111299 14 1 25G 0516 15 2 111290 0037 111085 VALVE ASSY BLADDER HYDRAULIC ASSEMBLY 1 DESCRIPTION AIR TANK VALVE HOSE CLAMP HOSE PRESSURE GAUGE FTG 90 ELL BRANCH TEE HOSE LSP RUN TEE HOSE HOSE HOSE HOSE HOSE CLAMP BOLT LSP HOSE CLAMP VALVE 111193 SEE DWG 111083 16 17 C1 C3 C4 BELLOWS CYLINDER 111290 0164 HOSE 111290 0167 HOSE 111290 0350 HOSE 111030 BLADDER 9G 0412 BOLT LSP 111471 CLAMP BAR 109256 HOSE CLAMP 25G 0508 BOLT LSP 100674 0310 COVER HOSE 111128 HOSE GUIDE 25G 0512 BOLT LSP 111289 PIPE ELBOW 111294 PLUG 111510 SPRING 111085 DIRECTIONAL VALVE ASSEMBLY REFERENCE AIR BLEED FILL VALVE BLADDERS AIR BLEED N LOW PRESSURE HYDRAULIC WATER SLAVE FORCE SENSE CIRCUIT BLADDER HYDRAULIC ASSEMBLY 2 BLADDER HYDRAULIC ASSEMBLY 3 BLADDER HYDRAULIC ASSEMBLY 4 QTY PART DESCRIPTION 11 2 100678 05 O RING TEE BRANCH FITTING 6
4. LORON SERVICE MANUAL PARTS LIST APPLIANCE CLAMP SOFT TOUCH MODEL 111037 PATENTS PENDING CONTENTS PAGE 1 Lift Truck Requirements General Installation Procedures General Inspection Clamp Assembly Bladder Hydraulic Assembly Clamp Cylinder Assembly Clamp Adjustments Control Valve Clamp Force Control Valve Arm Slide amp Shim Replacement Trouble Shooting 425 Hazel St Kelso WA 98626 800 248 6079 Fax 360 578 9934 LIFT TRUCK REQUIREMENTS CAPACITY Capacity shown on the Clamp name plate is for the CLAMP HYDRAULICS Recommended Truck Pressure 2100 to 2500 PSI Clamp only The combined truck and Clamp capacity is provided by the lift truck manufacturer 142 to 170 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 Side Shift amp Clamp a double auxiliary valve Oil Volume Settings Side Shift 3 GPM Clamp Open Close 7 GPM GENERAL INSTALLATION PROCEDURES 1 Make sure that the attachment centering lug is completely seated in truck carriage center notch 2 Clearance between the lower retainers that hold the attachment to the truck lower carriage bar should be as shown below 13 3 2mm MAXIMUM TRUCK LOWER CARRIAGE BAR LOWER RETAINER 3 Attach truck supply group take up to clamp valve on attachment base 4 Standing clear of the Clamp attachmen
5. R TORQUE 10 12 FT LBS 104711 SEAL KIT 112060 RELIEF TORQUE 20 25 FT LBS SEAL KIT 112064 MM 12335 MA 12336 NOTE 1 Lubricate threads amp seals prior to assembly 2 For VALVE pressure changes See page 9 QTY PART DESRCIPTION 1 111627 PRESSURE REDUCE RELIEF VALVE 1 103813 FLOW DIVIDER 3 112060 BI DIRECTIONAL RELIEF VALVE 3 111244 P O CHECK CARTRIDGES 111244 CHECK VALVE TORQUE 30 35 FT LBS SEAL KIT 112059 DOO P WO N dt QTY N 4 LB n PART 11G 0844 111573 111094 4E 04 7D 08 110906 111091 10 0424 CLAMP FORCE CONTROL VALVE DESCRIPTION BOLT MTG PLT WDMT DIRECTIONAL LOCKWASHER JAM NUT WHEEL AIR SPRING BOLT Ss 10 10 111328 111097 111098 111572 111655 100574 28 170 05 HEX NUT WHEEL HOUSING SPRING SPRING TENSION CAP SPRING CAP CLEVIS PIN COTTER PIN NUT NYLOCK USE W LBR MOUNTING ARM SLIDE amp SHIM REPLACEMENT To replace the slides extend the arms to the fully open position Release system pressure prior to removing the arms by turning the truck off and working the side shift and clamp function controls several times Support the arm with an overhead crane or lift truck Be sure to secure the chain or sling in a manner that prevents the arm from falling out of the chain or sling when hanging free of the clamp frame Remove the cotter pin slotted nut and spherical bearing from the end of th
6. e clamp cylinder rod Keeping hands and feet clear carefully slide the clamp arm off of the clamp frame Install the arm on the clamp frame ensuring that the arm moves freely without excessive binding If the arm is too loose or too tight add or remove shims as required Once the clearance is satisfactory insert the cylinder rod into the cylinder anchor on the arm Install the spherical bearing nut and cotter pin onto the cylinder rod end Be sure to leave 03 06 7mm to 1 5mm clearance to allow the cylinder to float on it s mountings see page 4 Remove the cotter pin slotted nut and spherical bearing from the end of the clamp cylinder rod Keeping hands and feet clear carefully slide the clamp arm off of the clamp frame BLOCK FOR L20 CLAMP MODELS 2 X2 X3 LONG 50 8mm X 50 8 mm X 76mm FOR L35 CLAMP MODELS 2 25 X 2 25 X 3 LONG 57 2mm X 57 2mm X 76mm ARM CLAMP FRAME ARM BAR Inspect slides and slide buttons for wear Slides may be rotated end for end and re used if excessively worn on the outer end only Extra shims may be used to tighten operating clearance on slightly worn slides Replace any slides worn to less than 06 1 5mm thick or any slide that is deeply scored or broken To aid in replacing the slides a block may be fashioned of wood or another convenient material to the dimensions shown above The block is inserted in the end of the arm to hold the slides shims and buttons in position while the arm i
7. s inserted over the arm bars on the clamp frame The block is expelled out the opposite end of the arm as the arm is pushed onto the frame Prior to installing the arm the block may be used to determine the number of shims to place under the slides Adjust the clearance between the slides and the block to provide approximately 06 1 5mm running clearance between the slides and arm when installed TROUBLE SHOOTING GUIDE LOADS SLIPPING OR DROPPING POSSIBLE CAUSES SOLUTIONS Clamp force set too low 1 Adjust clamp force page Internal leakage in cylinder 2 Replace cylinder seals If tube piston or rod is scored replace with new parts Load too heavy for the clamp capacity 3 Consult factory Load my not by stacked correctly or may need to be 4 Restack or unitize load shrink wrap unitzed Bent arms or contact pads 5 Consult factory Damaged leaking hydraulic hose 6 Replace damaged hose CRUSHING LOADS POSSIBLE CAUSES SOLUTIONS Clamp force set too high 1 Adjusting clamp force page Bent arms or contact pads 2 Consult factory Leak in bladder system 3 Check for leaks and repair ARM CHATTERING OR ERRATIC MOVEMENT POSSIBLE CAUSES SOLUTIONS Bent clamp arms 1 Consult factory Nylon slides sticking 2 Clean slides if necessary and lube with a dry lube such The slides are self lubricating as silicone or paraffin a When new the sides may need lubrication for break in b If the slide are contaminated they should be cleaned No
8. t cycle the attachment in and out several times Use caution because partially filled hydraulic lines may cause erratic movement GENERAL INSPECTION AND MAINTENANCE i Check all hydraulic fittings hoses cylinders and valves for leakages repair or replace as required 2 Check bladder water pressure If out of operating range adjust as required using Loron Pneumatic Fluid Pump 111785 Check clamp force and adjust See page 10 3 Time Schedule Check pressure and clamp forces every 3 weeks Water pressure Clamp Force gt All bolts should be checked and tightened as required See Torque Note page 2 5 Check lower retainer clearance see item 2 in General Installation Procedures above 1 a C PD mE DS ux WE xo ILS GL L4 x AON oO oa fF OON QTY En o o NA A A A A Aa A Bb N nm PART 111061 111372 2 101448 23 25G 0832 4E 08 101324 101333 100574 86 100047 111060 111068 1C 0824 111059 25G 0608 2F 06 111090 256 0512 4E 05 1C 0828 CLAMP ASSEMBLY 1 DESCRIPTION FRAME CYLINDER ASSEMBLY LOAD BACKREST BOLT LSP LOCK WASHER LSP BEARING SPHERICAL CASTLE NUT COTTER PIN LSP CYLINDER WASHER HOOK LOWER RETAINER II LOWER LOAD BACKREST BOLT LSP CYLINDER GUARD BOLT LSP WASHER LSP COVER WELDMENT BOLT LSP LOCKWASHER BOLT LSP CLAMP ASSEMBLY 2 oa BR C mE Cx LS cm N QTY PART 111065 111066 1110
9. te Sticking slides can cause inconsistent clamp force measurements Nylon sides worn broken or missing 3 Replace damaged slides shims and retaining buttons
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