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LXG520R
Grapple

Operating Instructions

25

7.3  Pre-start Checklist

Items to Complete

Check the machine for entangled material. Remove 
any twine, wire, or other material that has become 
entangled.

Check that all the fasteners are installed and 
tightened to the correct torque.

Make sure that your equipment is working properly 
and in good repair.

Check the hydraulic system for leaks. Use a safe 
method to inspect for leaks. Tighten fittings or 
replace components, as required.

Check the hydraulic fluid level. Add hydraulic fluid, 
as required.

7.4  Loading

• 

All coworkers must be in view before logs or equipment are 
moved.

• 

Have the logs ready to be loaded so work can be done in a 
safe manner. Turn logs that must be loaded but end first to 
eliminate extra maneuvering when loading.

• 

Load logs to ensure the stability of the vehicle and load 
while in transit.

• 

Load and unload from the side of the truck or trailer. Make 
sure there is enough clearance for the excavator to swing 
between the trailer/truck and other obstacles.

• 

Do not overload trucks or trailers. Keep the loads uniform 
by alternating butt ends of logs. Conform to regulations for 
height, weight, and length of loads.

• 

Position logs to avoid excessive strain on trailer stakes. Lay 
logs onto the trailer tightly, in a consistent manner without 
crowding.

• 

Never place split, cracked, or shattered logs on the bottom 
of the bunk or up against the bunk stakes.

• 

Operate carefully when the grapple is loaded. Elevated 
loads reduce machine stability on unstable ground.

• 

Balance loads in the grapple so the weight is evenly 
distributed and stable.

• 

Reduce speed before turning or swinging a load.

• 

Logs must extend past bunk stakes 12 inches (30 cm).

• 

Place two tiers of logs onto the bunk before loading shorter, 
smaller diameter logs.

• 

Take care to balance the load on the trailer or truck. An 
unbalanced load could cause a tip over.

• 

Balance loads carefully. Determine where the center of the 
load is in order to pick it up safely. The stump end of logs 
can be heavier and the smaller ends lighter.

01326

Fig.  18 – 

Make sure the grapple contacts all of the load

• 

Make sure grapple forks have full contact with all the pieces 
you are lifting. Otherwise the load could become unstable 
causing a dangerous situation to coworkers. 

01328

Fig.  19 – 

Grapple forks must be around the load when they are closed

• 

Pick loads up so that the weight is balanced in the grapple. 
This point may not be at the exact center of the load. The 
stump-end of a log for example, may cause it to be heavier 
at that end so you have to pick it up closer to that end.

Содержание LXG520R

Страница 1: ...OPERATOR S MANUAL Excavator Log Grapple LXG520R Document Number Z97143_En Rev Feb 2022...

Страница 2: ...sing or maintaining the machine reads and understands the Safety Operation and Maintenance information contained within the Operator s Manual Keep this manual handy for frequent reference and to pass...

Страница 3: ...zation 15 4 1 New Operator 15 4 2 Major Components 16 5 Installation 17 5 1 Excavator Matching 17 5 2 Mount the Grapple 17 5 3 Hydraulic Connections 19 5 4 Hydraulic Circuit Requirements 20 5 5 Grappl...

Страница 4: ...ly instructed the customer about the equipment care adjustments safe operation and applicable warranty policy and reviewed the manuals with them Dealer Address City State Province ZIP Postal Code Phon...

Страница 5: ...t when ordering parts or requesting service or other information The product information plate location is shown in the following illustration Record your product s serial number in the following tabl...

Страница 6: ...tor or explains the operation of a control Product Decals indicate machine model and serial number and other important information VIN NLV MODEL Manufactured by Wallenstein Equipment Inc 7201 Line 86...

Страница 7: ...es CAUTION Indicates a potentially hazardous situation that if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices IMPORTANT To avoid confusing equ...

Страница 8: ...should the need arise and know how to use the contents Keep a fire extinguisher available for use should the need arise and know how to use it Never consume alcohol or drugs before or during machine o...

Страница 9: ...ate a Safe Work Site For more information see Fig 2 on page 10 2 5 1 Designated Safe Area A Safe Area must be designated for workers who are on foot and in close proximity to the equipment The boundar...

Страница 10: ...2 Work zone Injury may occur from heavy material falling dropping in this area Material on a rotating boom creates a collision hazard if workers or bystanders are inside the work zone Place safety con...

Страница 11: ...ce for all operators Operators should review these topics at the start of each season The following sign off form can be used to record the completed training The design and manufacture of this produc...

Страница 12: ...ng familiar with safety signs decals and warnings and being aware of situations that require alertness The top panel or left hand panel for horizontal signs shows the safety alert potential hazard and...

Страница 13: ...hat cannot be safely secured by the grapple Never allow anyone to walk under an overhead load Keep bystanders at a safe distance 4 Caution Read the Operator s Manual Read ALL operating instructions an...

Страница 14: ...e or oil The ambient temperature must be above 50 F 10 C A squeegee plastic bank card or similar tool is required to smooth out the decal Procedure Determine the exact position for the decal before re...

Страница 15: ...ures prior to using the machine 1 Review control location function and movement directions 2 Move the unit to a large open area to allow the operator to become familiar with control function and machi...

Страница 16: ...2 Hydraulic cylinder 3 Hydraulic rotator assembly 4 Main frame 5 Mounting bolts 6 Excavator universal base plate 7 Hydraulic hose connections circuit relief valves 8 Grapple housing 9 Selector valve...

Страница 17: ...cavator the following considerations must be met 1 A mounting bracket must be manufactured to fit your excavator The grapple is not supplied with a mounting bracket 2 One of the following hydraulic ci...

Страница 18: ...dimensions of your bucket to get the correct fit for the stick and link on your excavator 00802 Fig 6 Excavator bucket dimensions Reuse pins and fasteners from the bucket for the grapple mount 1 Remov...

Страница 19: ...Function Grapple Open Grapple Close R Grapple Rotate 5 3 1 Hydraulic System Safety Make sure that all hydraulic system components are kept clean and in good condition Relieve pressure on the hydraulic...

Страница 20: ...and rotate Hydraulic circuit requirements for the grapple can be setup on an excavator two different ways 1 The excavator has two auxiliary circuits available to power grapple functions 1 open close...

Страница 21: ...valve The valve spool shifts to divert fluid to the grapple rotator Selector Valve Kit IMPORTANT If the excavator auxiliary circuit relief pressure is set above 2900 psi 200 bar the selector valve mu...

Страница 22: ...it to the auxiliary valve control handle Place the decal near the control so it is clearly visible Connect the harness to a 12 VDC power supply 5 5 Grapple Removal WARNING Risk of serious injury from...

Страница 23: ...her attachments One circuit is used for grapple open close the other for rotate clockwise or counterclockwise An excavator that has one auxiliary circuit must have the selector valve kit installed The...

Страница 24: ...w at all times while loading Protective cab shields must be provided on a log loader unless the absence of shields does not pose a hazard to the operator Always wear the seat belt while operating the...

Страница 25: ...gs to avoid excessive strain on trailer stakes Lay logs onto the trailer tightly in a consistent manner without crowding Never place split cracked or shattered logs on the bottom of the bunk or up aga...

Страница 26: ...lighting reflectors and markings and that they are in good working condition For specific requirements contact your local transportation authority Clean off all dirt and debris Make sure the grapple...

Страница 27: ...the excavator engine 4 Engage the hydraulic control lockout device 5 Turn off the main hydraulic switch 6 Move the hydraulic controls to make sure that there is no movement Follow good shop practices...

Страница 28: ...ipurpose high temperature grease with extreme pressure EP performance Also acceptable is an SAE multipurpose lithium base grease Lubricate the rotator hanger bearing every 50 hours of use Use a hand h...

Страница 29: ...machines that require a selector valve kit Connect the selector valve solenoid to a 12 VDC electrical power source Wrong function is selected machines that require a selector valve kit Make sure that...

Страница 30: ...ple opening 3 48 8 cm 122 cm Clamp force 9400 lb 4264 kg Lift capacity rotator pivot 6750 lb 3062 kg Total weight 345 lb 156 kg estimated 350 lb 159 kg estimated Dimensions LxWxH 51 x 52 x 20 Mounting...

Страница 31: ...torque values by 5 Bolt grades are identified by their head markings Imperial Bolt Torque Specifications Bolt Diameter Torque Value SAE Gr 2 SAE Gr 5 SAE Gr 8 lbf ft N m lbf ft N m lbf ft N m 1 4 6 8...

Страница 32: ...ighten the swivel nut with the second Torque to values shown If a torque wrench is not available use the FFFT Flats From Finger Tight method Hydraulic Fitting Torque Tube Size OD Hex Size Across Flats...

Страница 33: ...chase receipt with any claim This warranty does not cover the following 1 Normal maintenance or adjustments 2 Normal replacement of wearable and service parts 3 Consequen al damage indirect damage or...

Страница 34: ...e and relief pressure 21 Hydraulic connections 20 Hydraulic circuit requirements 20 Mount the grapple 17 Hydraulic connections 19 Mounting bracket 18 M Maintenance 27 Mount the grapple 17 O Operating...

Страница 35: ......

Страница 36: ...WallensteinEquipment com...

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