Question 1

Where is JM Engineering & Hydraulics based?

Accepted Answer

Our workshop is at 15 Union East Street, Whangārei 0110. We service the wider Northland region from there, both in the workshop and on site.

Question 2

What areas do you service?

Accepted Answer

Whangārei and the wider Northland region, including Otaika, Waipu, Maungatapere, Kauri, Hikurangi, Opua, Paihia, Haruru, Kerikeri and Kaikohe. Travel further afield depends on job type, location and current workload.

Question 3

What are your hours?

Accepted Answer

Monday to Saturday, 7:30am to 5:00pm. Closed Sunday.

Question 4

How do I request a quote?

Accepted Answer

Call 09 430 8070, or use the enquiry form on the Contact page for quotes and planned work. Photos of the equipment or damage give us more to work with.

Question 5

What should I do if the job is urgent?

Accepted Answer

For urgent or time-sensitive work, call 09 430 8070 to discuss availability. What we can do depends on job type, location and current workload.

Question 6

Can I send photos with my enquiry?

Accepted Answer

Yes. The enquiry form accepts up to five photos. Photos can help us understand the job before we call you back, and they are optional.

Question 7

What kinds of cylinders do you repair?

Accepted Answer

Cylinders from excavators, loaders, trucks, forestry gear, tractors, tipping trailers, industrial plant and general hydraulic equipment.

Question 8

How long does a repair take?

Accepted Answer

Turnaround depends on damage, parts availability and current workload. We provide an estimated timeframe before work starts.

Question 9

Can you re-chrome or re-tube a cylinder?

Accepted Answer

Yes. We handle full strip-down, honing, re-chroming, seal replacement, rod replacement and complete rebuilds.

Question 10

Why does the same cylinder keep leaking?

Accepted Answer

Repeat seal failure usually points to contamination, heat, a scored rod or a pressure setting problem. We check the cause rather than just refitting seals.

Question 11

Can you make up hydraulic hoses?

Accepted Answer

Yes. We make and fit hydraulic hoses to suit the machine, including replacing burst, weeping or perished lines.

Question 12

My machine has gone slow and gutless. What is that?

Accepted Answer

That commonly points to a pump losing efficiency, a relief or control valve issue, or a restriction in the circuit. Testing tells us which before anything is replaced.

Question 13

Do you repair or replace pumps and valves?

Accepted Answer

Both. Where a repair is practical we repair, and where replacement is the better option we say so and price it.

Question 14

Can hose work be done on site?

Accepted Answer

Often yes, subject to job type, location and current workload. Call 09 430 8070 to discuss.

Question 15

Do you come to site?

Accepted Answer

Yes. We provide mobile hydraulic and engineering support across Whangārei and Northland. Availability depends on job type, location and current workload.

Question 16

What can be done on site versus in the workshop?

Accepted Answer

Hoses, fittings, seal replacements, servicing, minor welding and diagnostic work are commonly done on site. Full cylinder rebuilds, honing, re-chroming and line boring are done in the workshop.

Question 17

A machine has stopped. What information do you need?

Accepted Answer

The machine type, where it is, what it was doing when it stopped and what it does now. Photos of the failure point help.

Question 18

What welding processes do you offer?

Accepted Answer

MIG, TIG and arc welding for structural repairs, custom fabrication and equipment modifications.

Question 19

Can you fabricate a custom bracket, frame or mount?

Accepted Answer

Yes. We regularly build one-off brackets, mounts, frames, guards and fabricated components to suit specific machines or jobs.

Question 20

Can you modify existing plant or machinery?

Accepted Answer

Yes, provided the modification is safe and practical. We will discuss the intent before starting work.

Question 21

Do you carry out line boring?

Accepted Answer

Yes. Line boring and re-bushing of worn pin bores, bosses and pivot points is carried out in-house.

Question 22

How do I know if a pivot needs line boring?

Accepted Answer

Slop or knocking in the joint, ovalled pin bores, rapid bush and pin wear, or an attachment that no longer sits square are the usual signs.

Question 23

Do you work on Palfinger cranes?

Accepted Answer

Yes. JM Engineering provides servicing and repair support for Palfinger truck-mounted cranes and their hydraulics.

Question 24

What crane work do you cover?

Accepted Answer

Crane hydraulic servicing, ram and cylinder repair, hose and valve work, slew fault finding, and pin and bush wear repair.

Question 25

Do you offer planned maintenance?

Accepted Answer

Yes. Scheduled servicing, hydraulic system health checks, oil and filter changes and wear inspections can be arranged around your operation.

Question 26

How often should hydraulic oil be changed?

Accepted Answer

It depends on the machine, hours run and operating conditions. We can advise based on the manufacturer guidance and what the oil condition shows.

Question 27

Can servicing be done at our yard?

Accepted Answer

Often yes, depending on job type, location and current workload.

Question 28

Do I need to book?

Accepted Answer

For workshop jobs a booking helps us plan around current workload. For anything urgent, call 09 430 8070 to discuss availability.

Question 29

Do you supply parts?

Accepted Answer

Yes. We source seals, rods, tubes, hoses, fittings, pumps and valves as part of a repair or as a supply-only job.

Question 30

How do you handle photos I send with an enquiry?

Accepted Answer

Photos are uploaded to a private storage bucket, referenced in the emailed enquiry via short-lived signed links, and removed automatically after 30 days. See our Privacy Policy for more detail.

Frequently Asked Questions

General

Hydraulic Cylinder Repairs

Hoses, Pumps & Valves

Mobile & On-Site Support

Engineering, Welding & Fabrication

Line Boring & Specialist Work

Maintenance & Servicing

Process & Payments

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