A preventive maintenance checklist for sawmill and planer-mill machinery: pick the units the visit covers — saws, edgers and trimmers, debarkers, chippers and hogs, conveyors and chain transfers, planers, stackers and sorters, hydraulic power units — and only their checks appear. Lockout is confirmed before any work section opens, dust and debris around drives and bearings is graded as the fire risk it is, then lubrication, drives, wear parts changed, guards back on, a test run and a signed hand-back.
Mill, Machine and Visit
Which machine, which units on it, and why you are here.
Visit title
Mill or customer
Mill address
Area of the mill — Log yard and infeed, Sawmill — primary breakdown, Sawmill — edging and trimming, Planer mill, Sorting and stacking, Chip and residue handling, Other
Machine name and number
Builder and model
Serial or asset number
Run hours, or production since the last visit
Work order number
Kind of visit — Scheduled preventive maintenance, Downtime shift inspection, Annual shutdown, After a breakdown, Follow-up to an earlier visit
Which units does this visit cover? — Saw, edger or trimmer, Debarker, Chipper or hog, Conveyor, chain transfer or log deck, Planer or moulder, Stacker, sorter or bins, Hydraulic power unit
What operators and the shift have noticed
Your company
Millwright or technician
Others on the crew
Date of visit
Time work started
Photo of the machine before work
Lockout Verified First
Nothing on this form opens until the machine is locked out and proven.
Is the machine locked out to its written procedure, every energy source isolated, and proven dead?
Stop here. No guard, door or cover comes off and nobody reaches in until every lock is on and the try-start has failed to move anything.
Personal locks on the lockout point
Lockout done by
Was the shift supervisor told, and the controls tagged, before isolating? — Good, Put right on the visit, Needs follow-up, N/A
Is the main disconnect off and locked, and any second feed or drive bypass isolated too? — Good, Put right on the visit, Needs follow-up, N/A
Have saws, cutterheads, chipper discs and band wheels come to a full stop, checked by eye? — Good, Put right on the visit, Needs follow-up, N/A
Is hydraulic and air pressure isolated and bled, with accumulators drained to zero on the gauge? — Good, Put right on the visit, Needs follow-up, N/A
Are raised parts — kickers, stop-loaders, lift skids, press rolls, gates — lowered or pinned so they cannot drop? — Good, Put right on the visit, Needs follow-up, N/A
With everyone clear, was a start tried at the controls, nothing moved, and the controls put back to off? — Good, Put right on the visit, Needs follow-up, N/A
Locks and tags on
Dust, Bark and Debris
What had piled up on and around the machine — the mill's fire load.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
How much dust and debris had built up on drives, motors and bearings? — Clean — next to nothing to remove, Light film — cleaned off, Heavy — cleaned off on this visit, Heavy — not all of it could be cleaned
Where it was worst, and what seems to be feeding it
Are hot surfaces — motors, gearboxes, brakes, hydraulic lines — free of a dust layer after cleaning? — Good, Put right on the visit, Needs follow-up, N/A
Are motor cooling fins and fan covers clear, so the motors can shed their heat? — Good, Put right on the visit, Needs follow-up, N/A
Are panels, junction boxes and conduit ends closed, with no dust inside? — Good, Put right on the visit, Needs follow-up, N/A
Are there no oil or grease leaks soaking up sawdust into a wick? — Good, Put right on the visit, Needs follow-up, N/A
Are the floor, pit and the space under the machine clear of bark, chips and trim ends? — Good, Put right on the visit, Needs follow-up, N/A
Is the fire extinguisher or suppression at this machine in place, charged and unblocked? — Good, Put right on the visit, Needs follow-up, N/A
Dust before and after cleaning
Saws, Guides and Arbors
Headrig, bandmill, gang, resaw, edger or trimmer saws.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Which kind of saws does this unit run? — Circular saws, Band saws, Both
Are the saws free of gullet cracks, missing or broken tips, and blue heat marks? — Good, Put right on the visit, Needs follow-up, N/A
Have saws been changed on the filer's interval, with the changes logged? — Good, Put right on the visit, Needs follow-up, N/A
Are guide pads worn evenly and inside their limit, with no scoring from a wandering saw? — Good, Put right on the visit, Needs follow-up, N/A
Guide clearance to the saw, as set
Is water or mist reaching the guides at every saw? — Good, Put right on the visit, Needs follow-up, N/A
Are collars clean, flat and free of nicks, with sleeves or splines sliding freely on the arbor? — Good, Put right on the visit, Needs follow-up, N/A
Arbor runout at the collar face
Are arbor bearings quiet and cool, with no end play felt by hand? — Good, Put right on the visit, Needs follow-up, N/A
Are wheel faces clean with an even crown, and scrapers touching the full width? — Good, Put right on the visit, Needs follow-up, N/A
Strain pressure, as found and as left
Does the strain system hold its pressure and take up when a band is pulled? — Good, Put right on the visit, Needs follow-up, N/A
Are the wheels in line, with tilt set so the band tracks where it should? — Good, Put right on the visit, Needs follow-up, N/A
Do saw shifters, positioners and trimmer saw lifts reach each set point and hold it? — Good, Put right on the visit, Needs follow-up, N/A
Are feed and press rolls gripping evenly, with spikes or fluting not worn flat? — Good, Put right on the visit, Needs follow-up, N/A
Are scanner heads, photo-eyes and line lasers clean, tight and aimed? — Good, Put right on the visit, Needs follow-up, N/A
Notes on the saws
Photographs — saws and guides
Debarker
Arms, tool tips, rotor and the rolls that carry the log through.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Are the tool tips on every arm sharp and inside their wear limit? — Good, Put right on the visit, Needs follow-up, N/A
Tips changed — how many, on which arms
Do all arms swing freely on their pivots and close back with even pressure? — Good, Put right on the visit, Needs follow-up, N/A
Arm pressure setting
Is the rotor bearing quiet, with no play and no grease pushing past the seals? — Good, Put right on the visit, Needs follow-up, N/A
Do infeed and outfeed rolls grip, with spikes or chain not worn smooth? — Good, Put right on the visit, Needs follow-up, N/A
Is the bark chute and the conveyor under it clear, with no bark packed against the drives? — Good, Put right on the visit, Needs follow-up, N/A
Notes on the debarker
Photographs — debarker
Chipper or Hog
Knives, anvil, wear plates, and the housing that has to stay shut.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Are the knives sharp, unchipped and seated flat in their pockets? — Good, Put right on the visit, Needs follow-up, N/A
Knife projection as set
Gap between knife and bed knife or anvil
Are the bed knife and anvil edges square, sharp and not rounded over? — Good, Put right on the visit, Needs follow-up, N/A
Were knife clamp bolts torqued to the builder's figure with a torque wrench? — Good, Put right on the visit, Needs follow-up, N/A
Torque used on the knife bolts
Are disc or drum wear plates and liners inside their limit, with no cracks? — Good, Put right on the visit, Needs follow-up, N/A
On a hog, are hammers or teeth, anvils and screens inside their wear limits? — Good, Put right on the visit, Needs follow-up, N/A
Is the discharge spout clear and without wear holes? — Good, Put right on the visit, Needs follow-up, N/A
Do the housing door bolts and interlock stop anyone opening it while the disc turns? — Good, Put right on the visit, Needs follow-up, N/A
Is the infeed chute and its curtain or guard intact, so nothing can be thrown back? — Good, Put right on the visit, Needs follow-up, N/A
Notes on the chipper or hog
Photographs — knives, anvil and housing
Conveyors and Chain Transfers
Chains, sprockets, belts, rolls and what has fallen underneath.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Chain stretch, measured over a set number of pitches
Is chain stretch inside the replacement limit, with no cracked links or walking pins? — Good, Put right on the visit, Needs follow-up, N/A
Are sprocket teeth unhooked, with the chain seating fully on them? — Good, Put right on the visit, Needs follow-up, N/A
Are wear strips and chain guides intact, with no chain cutting into the steel below? — Good, Put right on the visit, Needs follow-up, N/A
Are lugs, flights and dogs straight, tight and on spacing? — Good, Put right on the visit, Needs follow-up, N/A
Where there is a belt, does it track center, with sound splices and take-ups inside their travel? — Good, Put right on the visit, Needs follow-up, N/A
Do all live rolls turn, with their bearings and drive chains in good order? — Good, Put right on the visit, Needs follow-up, N/A
Does each pull-cord along its length stop the conveyor? — Good, Put right on the visit, Needs follow-up, N/A
Is the area beneath clear of fallen wood, bark and dust? — Good, Put right on the visit, Needs follow-up, N/A
Notes on the conveyors
Photographs — chain, sprockets and strips
Planer Heads and Feed
Cutterheads, their bearings, the feed works and the chip hoods.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Are cutterhead knives sharp and jointed, with no nicks that will mark the lumber? — Good, Put right on the visit, Needs follow-up, N/A
Are cutterhead bearings quiet and running cool? — Good, Put right on the visit, Needs follow-up, N/A
Cutterhead vibration or bearing temperatures
Do feed rolls grip evenly, with pressure set and fluting not worn away? — Good, Put right on the visit, Needs follow-up, N/A
Are chip breakers, pressure bars and shoes set and not worn? — Good, Put right on the visit, Needs follow-up, N/A
Are bed plates and guides smooth and square, with no scoring? — Good, Put right on the visit, Needs follow-up, N/A
Are chip hoods connected and pulling, with no chips packed around the heads? — Good, Put right on the visit, Needs follow-up, N/A
Did a sample piece come out at target size on every face? — Good, Put right on the visit, Needs follow-up, N/A
Notes on the planer
Photographs — heads and feed
Stacker and Sorter
Forks and arms, hoists, sticker placing, bins and their gates.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Are stacker forks or arms straight, and do they travel together without racking? — Good, Put right on the visit, Needs follow-up, N/A
Are hoist chains, cables and their anchors free of wear, kinks and stretch? — Good, Put right on the visit, Needs follow-up, N/A
Does the sticker placer lay sticks square and on spacing? — Good, Put right on the visit, Needs follow-up, N/A
Do bin gates and sorter trays open and close fully, with their stops sound? — Good, Put right on the visit, Needs follow-up, N/A
Are limit switches and proximity sensors tight, clean and switching? — Good, Put right on the visit, Needs follow-up, N/A
Are the walkways and gates around the bins fenced, with the lockout points easy to reach? — Good, Put right on the visit, Needs follow-up, N/A
Notes on the stacker and sorter
Photographs — stacker and sorter
Hydraulic Power Unit
Oil, filters, hoses, pump, accumulators and cooling.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Is the oil at level in the sight glass, clear, and not milky or dark? — Good, Put right on the visit, Needs follow-up, N/A
Oil temperature while running
Was an oil sample taken for analysis?
Are the filter indicators in the clean range, or the elements changed? — Good, Put right on the visit, Needs follow-up, N/A
Are hoses free of chafing, bulges, cracks and weeping ends, and clamped where they pass moving parts? — Good, Put right on the visit, Needs follow-up, N/A
Does the pump run without cavitation whine or rattle? — Good, Put right on the visit, Needs follow-up, N/A
System and relief pressure, as found
Accumulator precharge
Is accumulator precharge inside its range? — Good, Put right on the visit, Needs follow-up, N/A
Is the oil cooler clean, its fins clear of dust, and the fan running? — Good, Put right on the visit, Needs follow-up, N/A
Is the tank breather clean and the reservoir sealed against dust and water? — Good, Put right on the visit, Needs follow-up, N/A
Notes on the hydraulics
Photographs — power unit and hoses
Lubrication
Grease points, oil levels and the automatic lube system.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Was every grease point on the lube chart done, with no fitting blocked or broken off? — Good, Put right on the visit, Needs follow-up, N/A
Is the automatic lube reservoir full, with lube reaching the end of every line? — Good, Put right on the visit, Needs follow-up, N/A
Are gearbox oil levels right, breathers clear, and no water in the oil? — Good, Put right on the visit, Needs follow-up, N/A
Are chain oilers putting oil on the chain, not on the floor? — Good, Put right on the visit, Needs follow-up, N/A
Was the lubricant used the one named on the lube chart? — Good, Put right on the visit, Needs follow-up, N/A
Lubricants used, and how much
Drives, Bearings and Motors
What turns everything else.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Are V-belts and timing belts tensioned, and free of cracks and glazing? — Good, Put right on the visit, Needs follow-up, N/A
Are couplings and their inserts sound, with no fretting dust around them? — Good, Put right on the visit, Needs follow-up, N/A
Are bearings free of heat, noise and play? — Good, Put right on the visit, Needs follow-up, N/A
Bearing temperatures, where taken
Are motor and gearbox mounting bolts tight, with no cracked feet or bases? — Good, Put right on the visit, Needs follow-up, N/A
Are motor leads and their glands intact where they enter the motor? — Good, Put right on the visit, Needs follow-up, N/A
Notes on the drives
Wear Parts Changed
One line for each part that came out, so the record becomes a parts history.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Parts changed
Part
On which unit — Saw, edger or trimmer, Debarker, Chipper or hog, Conveyor, chain transfer or log deck, Planer or moulder, Stacker, sorter or bins, Hydraulic power unit, Drive or motor, Other
Part number
How many
Why it came out — Worn to its limit, Cracked or broken, Due on the schedule, Changed while it was apart, Upgraded
What the old part looked like
Old and new
Parts needed that were not on the shelf
Guards and Stops Back in Place
Before the locks come off: everything that was opened is closed and works.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
Is every guard that came off back on, with all its fasteners? — Good, Put right on the visit, Needs follow-up, N/A
Has the machine been checked inside for tools, rags and loose parts? — Good, Put right on the visit, Needs follow-up, N/A
With power back, does each guard interlock still stop the machine when opened? — Good, Put right on the visit, Needs follow-up, N/A
Was every emergency stop and pull-cord on this machine tried, and did each stop it? — Good, Put right on the visit, Needs follow-up, N/A
Does the start-up horn or beacon still sound before an automatic start? — Good, Put right on the visit, Needs follow-up, N/A
Guards refitted
Test Run
Locks off by their owners, then a run with the machine empty.
Folded until the lockout is confirmed in the Lockout section above. Do not open guards or reach into the machine before then.
After a headcount, were the locks taken off by the people who put them on? — Good, Put right on the visit, Needs follow-up, N/A
Length of the test run (minutes)
Did it run without knocking, vibration, heat or leaks? — Good, Put right on the visit, Needs follow-up, N/A
Is the fault the operators reported gone? — Good, Put right on the visit, Needs follow-up, N/A
Was wood run through it before hand-back?
Readings during the run
Notes on the test run
Hand-Back to the Mill
The decision, what is still owed, and who took the machine back.
Hand-back decision — Running — no limits, Running — with limits until the follow-up is done, Left locked out — not fit to run
The limits, or why it stays locked out
Follow-up work
What needs doing
Which unit or part
How soon — Before the next shift, This week, At the next downtime shift, Watch at the next visit
Who will do it
Due by
Time handed back
Labor hours on this visit
Next visit due
Millwright or technician — signature
Taken back by — name and role
Taken back by — signature
Manufacturing
Sawmill Equipment Maintenance Checklist
A preventive maintenance checklist for sawmill and planer-mill machinery: pick the units the visit covers — saws, edgers and trimmers, debarkers, chippers and hogs, conveyors and chain transfers, planers, stackers and sorters, hydraulic power units — and only their checks appear. Lockout is confirmed before any work section opens, dust and debris around drives and bearings is graded as the fire risk it is, then lubrication, drives, wear parts changed, guards back on, a test run and a signed hand-back.
✓Free — no account, no trial, no card.
Fill this in and download the finished PDF. Your answers stay on this device as you type. We ask for an email address once, at the download.
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For a planned maintenance visit to a production machine that is not mill machinery — a press, a lathe, a packaging line — use: Machine maintenance checklist
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A sawmill equipment maintenance checklist is the record a millwright fills in on a planned visit to the machines that break down logs and make lumber: which units were worked on, proof they were locked out before anyone reached in, how much sawdust and bark had built up around the drives, what was found and changed on each saw, debarker, chipper, conveyor, planer, stacker or hydraulic unit, and how the machine ran before it went back to the crew. Tick the units this visit covers and only their checks appear, so one form works for a whole shutdown or for a single edger on a Saturday. Fill it in here and download a PDF without creating an account, or speak while you walk, and the document writes itself.
Lock it out, then prove it, then open it
Mill machines keep moving after the button is pressed. A chipper disc or bandmill wheel can coast for minutes; a hydraulic accumulator holds pressure after the pump stops; a kicker arm, stop-loader or lift skid can drop under its own weight. So the lockout section asks about each of those as well as the electrical disconnect, and ends with a try-start at the controls with everyone clear.
Until that section is answered Yes, every work section on the form stays folded and shows a single line telling the millwright not to start. Whether the mill answers to WorkSafeBC in British Columbia or to OSHA in the US, the written lockout procedure for the machine is what the visit follows; the form records that it was followed.
Sawdust around drives and bearings is a fire waiting for a spark
Fine dust settles on the warmest places in the mill — motors, gearboxes, bearing housings, hydraulic lines — and on a dry day a hot bearing is all it takes. That is why dust and debris has its own section near the top of the visit rather than a "housekeeping" line at the end. The build-up is graded: clean, light, heavy and cleaned off, or heavy and left. Heavy build-up cleaned off earns half credit, because it says the cleaning schedule or a dust hood is not keeping up.
Photograph it before and after. The pictures are the evidence a superintendent needs to add a cleaning round or fix a leaking hood.
Checks for the machine in front of you, not every machine in the mill
A debarker wears out tool tips and arm pivots; a chipper wears knives, anvils and wear plates; a planer wears its knives and bearings; a chain transfer stretches its chain and hooks its sprockets. The units question at the start opens only the sections for what this visit covers. For saws, a second question separates circular saws from band saws, so collars and arbor runout appear for one and wheel crown and strain for the other.
Where a number matters, the form asks for it — guide clearance, knife projection, anvil gap, chain stretch, oil temperature, accumulator precharge. Next visit, those figures say whether a part is wearing faster than it should.
Wear parts, the test run and the hand-back
Every part changed goes on its own line: which unit, the part number, how many, why it came out, and what the old one looked like. Over a year that list turns into a parts history, and into the evidence for stocking the spares that keep failing.
The visit ends the way it should on the floor. Guards back on and every stop tried, locks removed by the people who fitted them, a run with the machine empty, and a hand-back decision — running, running with limits, or left locked out — signed by the millwright and by whoever takes the machine back.
Common questions
What should a sawmill maintenance checklist include?
The machine and visit, a confirmed lockout covering every energy source, the dust and debris found around drives and bearings, the checks for each unit worked on (saws and guides, debarker tips and arms, chipper knives and anvil, chain and sprockets, planer heads, stacker hoists, hydraulic oil, filters and hoses), lubrication, drives, parts changed, guards and stops proven, a test run, follow-up work and signatures.
How often should sawmill equipment be maintained?
It depends on the machine and how hard it runs. Saws and knives are changed by the shift or by volume, grease points and chain oilers are often daily or weekly, and the deeper inspections in this form tend to fall on a weekly or monthly downtime shift and the annual shutdown. Follow the builder's schedule and tighten it where this record shows parts wearing early.
Can one form cover several machines in one visit?
Yes. Tick every unit you work on — an edger and its hydraulic power unit, say — and each one's section opens. For a full shutdown across many machines, one form per machine keeps the history for each machine clean.
Why is dust build-up scored?
Because in a sawmill or planer mill it is a fire hazard, not a tidiness issue. Dust on hot motors, bearings and hydraulic lines is a common way for a mill fire to start. Scoring it makes a heavy build-up show up in the summary of findings instead of disappearing into a notes box.
Can I check later that the follow-up work was done?
Yes. In the ReportWalk app, start a re-inspection from this visit and only the checks marked Needs follow-up come back, each asking whether it is fixed, with a photo. Re-inspections are free.