Description

QLY QLY20 2008 Parts Catalog – The Only OEM Source for Genuine Spare Parts

You ever order a replacement seal for a hydraulic ram, wait three days, then find out the O-ring is the wrong durometer because the aftermarket catalog had a misprint? That’s time, money, and a potential hydraulic leak on a job site. This QLY QLY20 2008 Parts Catalog is the factory-printed document that lists exactly what QLY put on the crane when it left the assembly line. Not a third-party rehash. Not a scanned copy that lost resolution on the part numbers. Original OEM print, 20 pages, 2008 publication. If you own a QLY20 articulated crane and need to replace anything from a cutting ferrule to a fuse plug, this is the document you pull before you open your wallet.

Spare Parts Lists: More Than a Shopping List

Open to page 2 and you get the full spare parts list – 28 line items with OEM codes like DS 18-L, GB8745-88, and TB1477-C-A. Each entry includes the name (cutting ferrule, nut, O seal, gland bush), quantity, and remarks column. This is how you verify that the relay you’re about to order is the correct part number, not an ‘equivalent’ that might swap terminals. The catalog groups parts by function – engine, transmission, boom, winch, extension cylinder, and even wheel nuts. Wheel nuts tightening specs are on page 27. You need that torque value before you put a socket on a lug. I’ve seen stripped studs from guys guessing. Don’t be that guy.

Safety Section: Crawl Before You Operate

Page 4 is the Safety chapter. It covers the basics but also crane-specific stuff like the “Pork Brake (All Four Wheel Air Brake)” and “Emergency Braking Procedure”. If you’re a home garage guy who bought a used QLY20 and never ran a truck crane before, read that section twice. The manual also details the “Screening” and “Safety Belts” – no shortcuts around those. The factory wrote those procedures knowing that a 20-ton crane can kill you in a split second if you bypass a parking brake check. I don’t care if you’ve been wrenching for 30 years – always check the OEM safety protocol before you start the engine.

Crane Operation Procedures: Know the Controls

The table of contents lists “Crane Operation” starting on page 7, covering ignition switch, tilt steering wheel, seat adjustments, and then hydraulic crane controls. Ever tried to boom up without knowing the R.H. combination column switch layout? That’s how you pop a hose. The manual walks through boom lifting, boom extension, winch operation, and slewing. Each operation has a sequence – you don’t skip steps. The “All Wheel Drive Selection” and “Front Axle Lockouts” sections are critical if you operate off-road. Without the factory procedure, you might engage the wrong axle lockout and tear up a differential. This catalog is a Parts Catalog, but the operation section alone makes it worth the access for understanding what each control does and which part it connects to.

Lubrication Schedule and Wheel Nut Torque

Page 21 through 29 cover Service – lubrication information for engine, transmission and converter, boom and extensions, winch assembly, and extension cylinder. The “Wheel Nuts Tightening” section on page 27 includes the exact torque spec (in Imperial units, since that’s what we use in North America). For the QLY20, wheel nut torque is critical – under-torque and you lose a wheel; over-torque and you stretch the stud. The manual also lists intervals for grease points on the boom and winch. If you’ve been using a generic grease because the aftermarket catalog said “universal”, you might be using the wrong NLGI grade. The factory calls out specific lubricants. Follow it.

OEM Documentation vs Aftermarket Copies

I have a stack of aftermarket manuals on my shelf I wouldn’t use to level a wobbly toolbox. This 2008 original has the QLY logo, the exact part numbers from the production line, and the same safety warnings the operator received when the crane was new. Aftermarket sources often re-label part numbers, combine multiple models into one generic list, and skip the “Remarks” column that tells you which revision of a gland bush fits which boom section. You can’t afford that ambiguity when you’re ordering a $200 hydraulic cylinder. This manual is the source of truth. No third-party editing, no assumptions.

FAQ – Two Answers, One Short

Does this catalog include torque specs for the wheel nuts?

Yes. Page 27 lists the wheel nuts tightening procedure with the required torque value in Imperial units.

Will this manual help me identify a replacement seal for the extension cylinder?

Absolutely. The spare parts list on page 2 includes O seal part numbers like GB1235-78 and gland bush codes. The lubrication section on page 24 specifically covers the extension cylinder grease points and seal part references. You’ll also find the OEM code for the cylinder itself if you need to order a complete unit. Cross-reference with the crane operation chapter to confirm which cylinder you’re working on – the boom extension and lifting cylinders are separate entries. That level of detail is why you buy factory documentation instead of guessing from a generic parts diagram.

Every QLY20 owner, whether you’re running a rental fleet or a single crane on a ranch, needs this parts catalog on your device or bench. The factory part numbers, safety procedures, and lubrication schedules are the difference between a 30-minute repair and a week of hunting down the wrong part. Access the Factory Manual from AutoRepairManuals and keep it in your service binder next to the torque wrench.

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External reference: Automotive Industry Overview”>Automotive Industry Overview