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A5 Maintenance Calendar 2028 standing closed on a workbench, cover carrying a tools motif, roughly three millimetres thick.

Plain Lab · agenda

Maintenance Calendar 2028

A dated 2028 maintenance tracker that rules ten checks across two units into a grid for every month of the year.

Price

from Rp 56.000

Softcover, French link sewing. Printed and sewn to order.

Ships in 6–14 business days · 7-day returns

4.9 from 85 buyer reviews of Hibrkraft

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Every cover and binding option is quoted when you order.

Specification

Type
Diary / agenda
Trim
148 × 210 mm · 5.827 × 8.268 in
Pages
60
Leaves
30
Sheets
15
Signatures
3 × 20pp
Spine
3.43 mm
Paper
white
Ruling
lined
Rows per page
18
Year
2028
Covers
1 January – 31 December 2028

Build it

Rp 56,000

Two units, ten things checked on each: grease and oil on Unit 01, grease and oil on Unit 02, gearbox level, motor current, coupling, filter, belt tension, panel. The Schedule section turns those ten checks into a grid against the days of the month, twelve grids for the year, so you ask both units the same ten questions every month instead of remembering them.

Twelve month pages come first, for the shutdown you have to plan three weeks out. Twenty-three lined pages follow behind a Log divider, for the fault that does not fit a checkbox, the part number you ordered, or the vendor who did not show.

The grid does not set the interval between one grease point and the next for you. That comes from whichever pump, motor or gearbox manual sits on the shelf above your bench, and two machines from two manufacturers rarely agree on it.

What is inside

Schedule
12pp
Ten checks ruled against a month grid, twelve grids for the year, so two units get the same ten questions asked every month.
Months
12pp
One page a month, for the shutdown planned three weeks ahead.
Log
23pp
Lined pages behind the Schedule, for the fault, the part number, or the vendor a checkbox cannot hold.
Year
1pp
One page for the year before the first check is ticked.
Reference
12pp
Conversion tables computed from definitions, emergency numbers checked against two independent sources, and the personal page every copy opens with.

In every book

The same six pages open every book: your details, who to call, the signs to point at when you have no shared language, and the map. They sit at the front because the moment you need them is not the moment to be flicking through.

How to use it
One page describing this book, not a different one.
This book belongs to
One page for your name and number, so a book that goes missing can come back.
My details
Blood group, allergies, who to call. Written once, carried everywhere.
Emergency numbers
Forty countries, taken from Wikidata property P2852 (CC0), agreed across two sources, every row carrying its QID. Numbers change and a book does not — verify locally on arrival.
Point at this
A pictogram grid captioned in English above and Indonesian below, for when there is no shared language.
World map
Natural Earth 110m, public domain, equirectangular, with UTC hour meridians computed from the projection rather than from a timezone database. For orientation and for pointing at, not a navigation chart.
Conversion tables
Computed from definitions — 25.4 mm to the inch — and not copied from anywhere, so every row can be checked by anyone holding the book.
Pen test leaf
The last page, printed for it on purpose. Every notebook is used this way; printing it deliberately is cheaper than losing the last leaf to it by accident.

The film

Page by page

A vertical film, 52 seconds: the cover, the ruling page, then 5 reference pages. Synthesised ambient bed, no dialogue — captions in three languages.

A vertical film from our own bench — this page contacts nobody's server to play it, and downloads nothing until you press play.

What is inside this book?

Five pages from the Maintenance Calendar 2028 laid out as cards: a Schedule grid page, a month page, a Log page, a conversion table, and the pen test page.
Five pages taken straight from the print file: a ten-check Schedule grid, a month page, a lined Log page, a conversion table, and the pen-test leaf. The ten checks are the product. A grease point checked and a grease point assumed checked look identical until a bearing fails, and only one of them left a mark on paper.
Specification card listing the Maintenance Calendar 2028 contents: Schedule pages, Log pages, 60 pages total, A5 trim, three signatures of twenty.
Twelve Schedule pages, one a month, each ruled against ten checks: Unit 01 grease, Unit 01 oil, Unit 02 grease, Unit 02 oil, gearbox level, motor current, coupling check, filter change, belt tension, panel clean. One year page, and twenty-three lined Log pages for a fault or a part number a checkbox cannot hold. Twelve pages of reference material, including conversion tables computed from definitions and emergency numbers checked against two independent sources. 60 pages total, A5, three signatures of twenty.
Computed from definitions — 25.4 mm to the inch — and not copied from anywhere, so every row can be checked by anyone holding the book. — Maintenance Calendar 2028
Conversion tables
Forty countries, taken from Wikidata property P2852 (CC0), agreed across two sources, every row carrying its QID. Numbers change and a book does not — verify locally on arrival. — Maintenance Calendar 2028
Emergency numbers
One page for your name and number, so a book that goes missing can come back. — Maintenance Calendar 2028
This book belongs to
A pictogram grid captioned in English above and Indonesian below, for when there is no shared language. — Maintenance Calendar 2028
Point at this
Natural Earth 110m, public domain, equirectangular, with UTC hour meridians computed from the projection rather than from a timezone database. For orientation and for pointing at, not a navigation chart. — Maintenance Calendar 2028
World map

The PDF of this book.

We do not sell the design or the PDF. Download it free, with no conditions at all, not even tracking. What we sell is the book, a real object that is genuinely useful and can help your life.

Download PDF PDF · 60 pages · 0.4 MB

Made at the Hibrkraft bindery, Bogor · about the maker

Books that sit alongside it

Questions

What are the ten checks in the Schedule section?

Unit 01 grease, Unit 01 oil, Unit 02 grease, Unit 02 oil, gearbox level, motor current, coupling check, filter change, belt tension, panel clean.

How big is it?

A5, 148 x 210 mm, 60 pages, 3.43 mm across the spine.

Is it dated?

Yes. This edition covers January to December 2028. The 2027 edition is a separate, dated printing.

Does it set my grease or oil interval?

No. That comes from the manufacturer's manual for each machine, and two manufacturers rarely agree on it. The grid gives you twelve months to tick against, not a schedule already filled in.

What is behind the Log divider?

Twenty-three lined pages, for a fault, a part number, or a vendor a checkbox cannot record.

Let us see whether it is in the state in which it was last time.
Michael Faraday, The Chemical History of a Candle, 1861

Price

from Rp 56.000

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Track Record

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UDUNAN 2020 Winner · Ekraf Jabar · Mitra Jabar
The Hibrkraft team outside the workshop in Bogor
The Hibrkraft team, Bogor
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