FROM THE SHOP & FIELD
Articles
Real repair stories, diagnostic notes and equipment lessons from Mondak Equipment.
Rail & Specialty Equipment
Trackmobile 95TM Won’t Lift: Diagnosing Low Hydraulic Pressure
An older Trackmobile 95TM could not lift properly. Pressure and temperature testing pointed to the pump, and the replacement was primed, adjusted and verified before the machine went back to work.
READ ARTICLEForklifts & Material Handling
Toyota Forklift Steering Cylinder Repair: Why Access, Inspection and Honing Matter
A Toyota forklift steering cylinder was leaking. Removing it safely took rear support, capped lines, a custom 21 mm tool and floor-jack control; the barrel was honed, resealed and tested before reinstall.
READ ARTICLEForklifts & Material Handling
Hyster Order Picker Won’t Travel: Looking Beyond the Traction System
A Hyster order picker had power but no travel in either direction. Inspection found a sheared lever pin, damaged threads, a missing push rod and an empty brake reservoir in the brake-release system.
READ ARTICLETrucks & Trailers
Freightliner Fuel Leak: Why High-Pressure Diesel Leaks Need Immediate Diagnosis
A Freightliner came into the Glendive shop with an active fuel leak. A hairline crack in a rigid fuel tube was confirmed off the engine, a mismatched replacement was rejected, and the correct line was installed and verified.
READ ARTICLEDiagnostics
Gehl Telehandler Kept Dying: Voltage Drop Instead of a Fuel Problem
A Gehl RS8-42 would run and then die with no active fault codes. Testing the ECM supply under load traced a 9-volt drop to a corroded positive battery lug.
READ ARTICLEHydraulics
Hydraulic Cylinder Rebuild: Why a Seal Kit Is Sometimes Only Part of the Repair
A seal kit fixes worn seals, not scored barrels, pitted chrome or bent rods. Here is what a proper cylinder rebuild inspects, and why skipping it brings the leak back.
READ ARTICLEDiagnostics
When an Engine Problem Is Actually a Hydraulic Load Problem
A Genie machine cranked like a seized engine. On hydrostatic equipment, a drive pump stuck on stroke can drag the engine down, so the systems need to be separated before an engine is condemned.
READ ARTICLERail & Specialty Equipment
Repairing Older Rail Movers: Working Order Is Not the Same as New
Testing on a 1980s rail mover found high case-drain flow from a worn axial-piston pump. Obsolete parts, unknown earlier repairs and the machine’s original design all shaped what repair could realistically deliver.
READ ARTICLEHydraulics
Hydraulic Fittings: Why 37° and 45° Flare Are Not Interchangeable
A -6 JIC hydraulic fitting wouldn’t mate with a brass flare adapter. The adapter was a 45° flare part, not a 37° JIC one. Similar looks don’t mean compatible seats or threads.
READ ARTICLEHydraulics
Wacker Neuson Hydraulic Hose Repair: Why DIN Light Series Fittings Matter
A Wacker Neuson WL-series wheel loader needed hydraulic hose work under its tilted cab. The hoses used DIN Light Series ends, which have to be identified correctly before a replacement is built.
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These articles come from real Mondak repair work, field calls and equipment troubleshooting. Details are written to explain the diagnosis and repair process without identifying customers.
GLENDIVE, MONTANA
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