1. Home
  2. Forums
  3. Maintenance & Troubleshooting
  4. CODE 521

Discussion:
CODE 521

Have a Doosan G33P-5 serial number MN00244 which is throwing a code 521. I only have a book on earlier models which show only 2-digit codes. Wondering what this code 521 refers to. Thanks
  • Posted 22 Jan 2013 00:11
  • By MikeMan
  • joined 8 Feb'11 - 17 messages
  • Iowa, United States
Post a ReplyReport this post
Showing items 1 - 1 of 1 results.
521 is low oil pressure fault,check your oil level and pressure switch
  • Posted 22 Jan 2013 04:23
  • By kevin_t
  • joined 2 Dec'10 - 1,301 messages
  • Pennsylvania, United States
Post a ReplyReport this post

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Showcased in the Virtual Expo

Global Industry News
edition #1237 - 3 July 2025
While innovation and new technology are evolving at what seems to be an ever-increasing pace, the need to capture the data (telemetry) from this tech, and the ability to utilise it (telematics) for efficiency and cost savings, is one area attracting more and more attention ... Continue reading
Fact of the week
The use of "hello" as a telephone greeting is attributed to Thomas Edison. He is said to have suggested it as a simpler alternative to other greetings, such as "Do I get you?" or "Are you there?".
From the forum discussions …
"Congrats to the first person to use the new photos in the forums - Darek_S says: "I attached a couple photos of the valves I visually inspected (Toyota 7FBEU20). I followed the pressure line to the flow regulator valve...""
darek_s, United States
Read & Post in our Forums

PREMIUM business

VETTER Forks, Inc.
The world's most comprehensive product range as well as the most intelligent sensor fork for more safety and efficiency.
VETTER Forks, Inc.
Machinery-onQ
Machinery-onQ.com is the one place to source and sell all your new and used machinery.
Find equipment for sale | Add a listing
VISIT
machinery-onQ.com
Machinery-onQ
Taylor T650L
Taylor T650L 2008
Coraopolis, Pennsylvania, United States
Used - Sale & Hire
Terberg TT223
Terberg TT223 2011
Balling, Denmark
Used - Sale
|

PREMIUM business

Lift Tek Elecar
Global leader in the design and manufacture of masts, carriages, integral sideshifters & fork positioners.
Lift Tek Elecar
Latest job alerts …
Logistics & Rental Coordinator
East Syracuse, United States
Road Technician
Columbia, SC, United States
Road Mechanic
Saratoga, United States
Material Handling Equipment Rental Manager
Indianapolis, IN, United States
View more jobs alerts
Movers & Shakers
Jeannette Walker Jeannette Walker
Jeannette Walker
CEO, MHEDA
Stéphane Hénon
President, European Rental Association (ERA)
Tejal Ranjan
Chief marketing officer, JLT Mobile Computers
Pete Stanislawczyk
Chief executive officer, East Penn Manufacturing