With a weeping tilt cylinder on the bench and the parts counter waiting for a number, you'll want the Gehl 552, 553, Dynalift parts catalog PDF open: 180 pages, publication 908459, covering both telescopic boom forklifts from cab to carriage. Hydraulic component breakdowns make up the largest share of the book, with exploded views of the pump, main valve, joysticks, frame level valve, and every lift, tilt, slave, and boom extend cylinder. Each model gets its own boom pages, so the two-section 552 and the three-section 553 never get confused. The axle pages break the outer ends, differential housing, and brakes down part by part. Confirm L99927 is the 350 PSI relief valve before ordering. A wrong seal kit costs you the freight, a second teardown, and another week with the lift parked. Bookmarks and the numerical index take you from a part number to its exploded view, and any callout is one search away.
What's Inside This Gehl 552, 553, Dynalift Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 2-7 | List of Abbreviations, Filter Reference Chart, Table of Contents |
| Decals | 8-13 | New Application, Decal Locations |
| Operator Station | 14-41 | Safety Guards, Windows and Cab, Front and Rear Windows, Windshield Wipers / Top and Front, Side Door and Window, Cab Mounts and Panels, Steering Column Group, Seat Group |
| Chassis | 42-51 | Frame Hoods and Covers, Hydraulic and Fuel Tanks, Battery Group, Lights |
| Engine | 52-59 | External Engine Components Group, Radiator and Cooler Group, Air Intake Group, Exhaust Group |
| Transmission | 60-63 | External Transmission and Drive Shaft Group, Internal Components |
| Axles | 64-87 | External Components Group, Outer End Group, Outer End Group - Part I, Outer End Group - Part II, Differential Housing Group, Differential Group, Differential Housing Group - Part I |
| Boom | 88-99 | 552-Outer Boom Section, 552-Inner Boom Section, 553-Outer Boom Section, 553-Intermediate Boom Section, 553-Inner Boom Section, Dynattach |
| Hydraulic Systems | 100-125 | Hydraulic Pump, Tank and Flow Divider, Tank and Priority, Steer Motor and Steer Select Valve, Main Valve Group, Joystick Group, Frame Level Group |
| Hydraulic Components | 126-159 | Hydraulic Pump Breakdown, Flow Divider Breakdown, Main Valve Hyd. Breakdown, Main Valve Breakdown, Priority Valve/Flow Divider Breakdown, Frame Level Valve Breakdown |
| Attachments | 160-169 | Standard Carriage Attachment Group, Shift Fork Carriage Attachment Group, Rotate Carriage Attachment Group, Boom Attachment Group, Bucket Attachment Group |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Relief Valve Pressure | 350 PSI | p. 125 |
Gehl 552, 553, Dynalift Common Problems This Manual Covers
Gehl 552 or 553 Dynalift hydraulic pump seal kit part number differs by serial number
Check your serial number before ordering, then open the pump breakdown on page 126. Units from 552 S/N 1057 and 553 S/N 4519 up list pump L68714 with seal kit L500368. Earlier pumps (L63308) take seal kit L99009 for 552 S/N 1009 through 1056, or L97665 for 552 units through S/N 1008. Gasket L46865 fits both.
Manual Section: Hydraulic Pump Breakdown p. 126Main valve seal kit and relief cartridge part numbers change between early and late serial numbers
Verify your serial number first. For 552 S/N 1057 and up or 553 S/N 4519 and up, the parts list on page 129 shows section seal kit L500127, spool seal kit L98887, and relief cartridge L500129 with relief seal kit L96580. Earlier valves (L63125) on page 130 use seal kit L98502 and spring center kit L98500, one per section.
Manual Section: Main Valve Breakdown p. 129Lift cylinder counter balance valve and cylinder seal kit part numbers hard to locate
Check the lift cylinder breakdown on page 151 and order per cylinder, since quantities are listed for one cylinder. Cylinder seal kit is L98521, counter balance valve is L64175, and the CBV seal kit is L97889. The tilt cylinder uses the same CBV seal kit with counter balance valve L70495 on page 155.
Manual Section: Lift Cylinder Breakdown p. 151Steer motor seal kit part number unclear across three serial number ranges
Match your serial number to the steer motor breakdown on page 136; field service is limited to seals replacement. 552 S/N 1057 and up or 553 S/N 4519 and up take seal kit L500962. 552 S/N 1012 through 1056 or 553 S/N 3178 through 4518 take L99002. 552 through S/N 1011 or 553 through S/N 3177 take L97671.
Manual Section: Steer Motor Breakdown p. 136Steer select valve seal kit mismatch between round coil and square coil valves
Inspect the coil shape on the steer select valve before ordering. Page 135 lists seal kit L99907 for round coils and L63602 for square coils. The 12VDC coil with connector is L500770, two per valve, for 552 S/N 1051 and up and 553 S/N 4350 and up. Wire adapter harness L68711 is listed under items not shown.
Manual Section: Steer Valve Breakdown p. 135Brake valve repair kit contents unclear when ordering, and the piston is not in the kit
Check the brake valve breakdown on page 137 before ordering. Repair kit L98537 includes seals, cups, return spring, second arm piston and snap ring; the piston itself is not included or sold separately. Diaphragm gasket L98534 is listed under the cover, and complete brake valve assembly L63363 is listed at quantity two.
Manual Section: Brake Valve Breakdown p. 137Frequently Asked Questions
What are the torque specifications for a Gehl 552?
Torque specifications for Gehl hardware are provided on page 179. For example, a 5/16-18 Grade 5 bolt has a dry torque of 17 lb-ft and a lubed torque of 13 lb-ft. p. 179
What are the replacement specifications for the hydraulic oil filter on the Gehl 552, 553, Dynalift?
The hydraulic oil filter part number is L97489. This is listed in the Filter Reference chart on page 3. p. 3
What is the part number for the engine oil filter for a 552 with a JD engine (S/N 1021 & Up)?
The engine oil filter for a 552 with a John Deere engine (S/N 1021 & Up) is part number L99420. p. 3
What is the part number for the engine air filter on the Gehl 552, 553, Dynalift?
The engine air filter part number is L120054, as specified in the Filter Reference chart on page 3. p. 3
What is the part number for the transmission oil filter on the Gehl 552, 553, Dynalift?
The transmission oil filter part number is L99184, as specified in the Filter Reference chart on page 3. p. 3
How will I receive this Gehl 552 Parts Catalog?
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