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An A5 Hydraulic Service Logbook standing closed, graph-ruled pages inside for plotting hydraulic readings, about six millimetres thick.

Plain Lab · logbook

Hydraulic Service Logbook

Fifty-six machine-log pages for pressure, flow, temperature and filter readings, and thirty-two pages of graph paper behind them.

Price

from Rp 58.000

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
Logbook
Trim
148 × 210 mm · 5.827 × 8.268 in
Pages
100
Leaves
50
Sheets
25
Signatures
5 × 20pp
Spine
5.72 mm
Paper
white
Ruling
graph
Rows per page
34
Dating
Undated

Build it

Rp 58,000

Fifty-six machine-log pages open the book, one table recording pressure, flow, temperature, filter condition and hours run. A hydraulic system that loses pressure slowly over three visits shows it in that table, if the column got filled in each time.

Thirty-two pages of graph paper follow, ruled at five millimetres. A single pressure reading tells you the moment; a curve drawn across a few of these pages tells you the trend, which is the reason the notes here are graph and not lined.

It does not print your pressure limit or your filter-change interval. Those figures sit in the system's own manual or the standard you work to, and a manufacturer can revise one without telling the book. Write yours in the column built to hold it.

What is inside

Machine log
56pp
One table, ruled for pressure, flow, temperature, filter condition and hours run.
Graph notes
32pp
Five-millimetre graph, for a curve a single column cannot hold.
Reference
12pp
Pressure and temperature tables, computed rather than copied, sit next to emergency contacts confirmed against two independent sources.

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.

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 Hydraulic Service Logbook laid out as cards: a machine-log page, a graph-ruled notes page, the emergency-numbers page, a conversion table, and the owner's page.
Five pages from the print file: the machine-log table, a graph-ruled notes page, the emergency-numbers page, a conversion table, and the owner's page at the front. A pressure reading is a single number; a pressure reading against time is a curve, and that is why the notes pages here are ruled, not left blank.
Specification card for the Hydraulic Service Logbook: machine log and graph notes, 100 pages total, A5, five signatures of twenty.
56 machine-log pages, ruled for pressure, flow, temperature, filter condition and hours run. 32 graph-ruled pages follow at 5 mm pitch, for a curve a single column cannot hold. 100 pages total, A5, five sewn signatures of twenty, spine 5.72 mm.
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. — Hydraulic Service Logbook
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. — Hydraulic Service Logbook
Emergency numbers
One page for your name and number, so a book that goes missing can come back. — Hydraulic Service Logbook
This book belongs to
A pictogram grid captioned in English above and Indonesian below, for when there is no shared language. — Hydraulic Service Logbook
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. — Hydraulic Service Logbook
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 · 100 pages · 0.4 MB

Made at the Hibrkraft bindery, Bogor · about the maker

Try the ruling on paper first

The same ruling exists as a free, ready-to-print sheet. Print one, write on it, and decide whether the pitch suits your hand before you order the book.

Graph Paper, 5 mm SquaresFree PDF · 5 paper sizes

Books that sit alongside it

Questions

What does the machine-log page record?

Pressure, flow, temperature, filter condition and hours run.

What ruling are the notes pages?

Five-millimetre graph, thirty-four rows to the page.

How big is it?

148 x 210 mm, A5, 100 pages, spine at 5.72 mm.

Is it dated?

No. Open it the day the unit is commissioned.

Does it print my pressure or filter-change limits?

No, on purpose. Those figures come from the hydraulic system's own manual and the standard you work to, and a printed page cannot be updated when a manufacturer revises one. Write yours in the machine-log column built to hold it.

All machinery is derived from nature, and is founded on the teaching and instruction of the revolution of the firmament.
Vitruvius, The Ten Books on Architecture, c. 25 BC

Price

from Rp 58.000

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The Hibrkraft team outside the workshop in Bogor
The Hibrkraft team, Bogor
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