Log Grapple
Selection begins with numbers that can be verified. The table below lists the build and interface items for this attachment, followed by the checks that decide whether it belongs on a particular machine.
The jaw type row for this log grapple is twin curved tine sets; it is a measured value, not an estimate. A tape check on the delivered forestry grapple, log grab, timber grapple should reproduce mounting at universal quick-attach plate.
A tape check on the delivered forestry grapple, log grab, timber grapple should reproduce hydraulic circuit at standard auxiliary, double-acting. Case-drain requirements for the forestry grapple, log grab, timber grapple are stated in writing, since a blocked drain shortens motor life sharply.
A forestry grapple, log grab, timber grapple intended for continuous duty is specified with a case-drain path, since a blocked drain shortens motor life sharply. Before fabrication, mounting is fixed at universal quick-attach plate for the log grapple so the interface can be drawn.
pivot = bushed and greaseable bosses is the entry a workshop uses when it matches the log grapple to a host machine.
Transport width of the forestry grapple, log grab, timber grapple is noted as its own entry from working width, because the two rarely coincide. Procurement uses the frame figure of open welded cage to identify this forestry grapple, log grab, timber grapple against other builds.
A forestry grapple, log grab, timber grapple with a secondary movement needs a second auxiliary service, and that requirement is noted on the interface sheet. For procurement purposes jaw type is stated as twin curved tine sets on the log grapple data sheet.
Working width of the forestry grapple, log grab, timber grapple is set against gate openings and transport limits before it is set against engine power. One line that decides the fit of this log grapple: frame = open welded cage, measured after assembly.
The log grapple is written down as one build configuration; any option that alters the interface is issued as its own line on the sheet. Before fabrication, actuation is fixed at hydraulic cylinders through linkage for the log grapple so the interface can be drawn.
Inspectors record hydraulic circuit as standard auxiliary, double-acting once the forestry grapple, log grab, timber grapple has been assembled and painted.
Read jaw type as twin curved tine sets on the forestry grapple, log grab, timber grapple when the carrier chart is being checked. The forestry grapple, log grab, timber grapple carries its identification mark on the mounting frame, where it stays legible after repainting.
This log grapple is selected only after the carrier plate has been read, because auxiliary output decides how fast the working element can turn. Before fabrication, frame is fixed at open welded cage for the log grapple so the interface can be drawn.
Relief settings for the log grapple are written against the carrier requirement, with the tool maximum shown beside them. Carrier capacity, hydraulic output, mounting geometry and spares availability are the four columns of the check for this log grapple.
On the log grapple, relief pressure at the carrier has to sit above the working requirement and below the maximum rating of the tool. On the comparison sheet, pivot appears as bushed and greaseable bosses, which is the value measured after assembly of the forestry grapple, log grab, timber grapple.
The log grapple carries mounting = universal quick-attach plate, and that pair is the reference used during commissioning.
The forestry grapple, log grab, timber grapple is drawn with the hose exit clear of the pivot arc, then that clearance is rechecked on the finished unit. A second movement on this log grapple requires a second auxiliary service, which is noted on the interface sheet.
Before this forestry grapple, log grab, timber grapple is accepted, flat-face couplers are marked by size and any case-drain requirement is established in writing. If the carrier differs, the hydraulic circuit row for the log grapple is reissued; the standard entry here is standard auxiliary, double-acting.
The workshop signs off pivot = bushed and greaseable bosses for this log grapple during the final inspection. A tape check on the delivered forestry grapple, log grab, timber grapple should reproduce mounting at universal quick-attach plate.
Buyers fitting this forestry grapple, log grab, timber grapple to an older machine should confirm wedge wear on the coupler before relying on the published interface. For procurement purposes mounting is stated as universal quick-attach plate on the log grapple data sheet.
Before fabrication, jaw type is fixed at twin curved tine sets for the log grapple so the interface can be drawn.
The workshop signs off actuation = hydraulic cylinders through linkage for this log grapple during the final inspection. Any option that changes the log grapple interface is issued as a separate row on the same measurement sheet.
A forestry grapple, log grab, timber grapple intended for continuous duty is specified with a case-drain path, since a blocked drain shortens motor life sharply. Inspectors record jaw type as twin curved tine sets once the forestry grapple, log grab, timber grapple has been assembled and painted.
One line that decides the fit of this log grapple: hydraulic circuit = standard auxiliary, double-acting, measured after assembly. Coupler size and thread type for the log grapple are named on the same row as the hydraulic supply figure.
Rotating versions of the log grapple need a flow figure they can receive at full engine speed, not the theoretical pump displacement. If the carrier differs, the actuation row for the log grapple is reissued; the standard entry here is hydraulic cylinders through linkage.
Read actuation as hydraulic cylinders through linkage on the forestry grapple, log grab, timber grapple: it is a build dimension, not a class average.
Procurement uses the actuation figure of hydraulic cylinders through linkage to identify this forestry grapple, log grab, timber grapple against other builds. One line that decides the fit of this log grapple: pivot = bushed and greaseable bosses, measured after assembly.
Dimensions, circuit values and wear items are logged separately for this forestry grapple, log grab, timber grapple so a later comparison isolates the item that changed. On the comparison sheet, frame appears as open welded cage, which is the value measured after assembly of the forestry grapple, log grab, timber grapple.
Specification items are listed in the table in the order a workshop would check them. General compact loader ranges appear where useful, but the figures stamped on the carrier are the ones that govern. The Log Grapple is the unit those rows belong to.
| Parameter | Value on this build | Checked with |
|---|---|---|
| Jaw type | Twin curved tine sets | Repeated at the first service |
| Actuation | Hydraulic cylinders through linkage | Measured with a tape |
| Frame | Open welded cage | Confirmed on the interface drawing |
| Pivot | Bushed and greaseable bosses | Verified during commissioning |
| Hydraulic circuit | Standard auxiliary, double-acting | Recorded on the parts list |
| Mounting | Universal quick-attach plate | Confirmed on the interface drawing |
The selection sheet for this forestry grapple, log grab, timber grapple puts frame at open welded cage; that figure is rechecked on the finished unit.
For this log grapple the receiving workshop measures hydraulic circuit against the stated standard auxiliary, double-acting with a tape or gauge; no special equipment is needed. The log grapple is written down as one build configuration, and any option that changes the interface is issued as a separate row.
Wear items are listed apart from the structure on the forestry grapple, log grab, timber grapple; mounting is recorded as universal quick-attach plate so the correct replacement can be identified. Overall height of the log grapple is read with the tool parked level, not with the arms raised.
The log grapple is supplied with jaw type = twin curved tine sets on its measurement sheet, and that line is the one a buyer compares with the carrier chart. The jaw type row for this log grapple is twin curved tine sets; it is a measured value, not an estimate.
Only the standard build is described here: for the forestry grapple, log grab, timber grapple, actuation reads hydraulic cylinders through linkage and any change to the interface is issued as a separate row. A tape check on the delivered forestry grapple, log grab, timber grapple should reproduce mounting at universal quick-attach plate.
The specification above can be established against the delivered attachment item by item. Build photographs and the parts list accompany the machine, so the figures on this page are checkable rather than nominal.
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A short note with the carrier model, flow figure and working material is enough to start. Confirmation covers the mounting plate, hydraulic demand and build images for that tool, with workshop answers to any technical point.
