Week 5 (5/2-5/6) Hydraulic Steering

We have a piece of equipment with hydraulic steering. The operators are complaining that there is a delay in the steering followed by a suddenly turning sharply. After pulling it into the shop we found that there was indeed a delay in the steering but not sharp grab. We attached our pressure gauge and found the system to be operating within manufactures specs for pressure. The filters have been changed recently and the system is not contaminated as far as my co worker and I can see. Would this delay be due to the directional valve in the steering wearing out over time? The equipment is almost 30 years old.

Hours: 40

Running Total: 192

Week 4 (4/25-29) Cold Start System

We noticed a piece of equipment having a difficult time starting for the operators in the morning. We pulled it in the shop to check the starting system. We started with the glow plugs. I placed my meter on the glow plug railing and found a good ground. I found that I got no voltage to the railing. So I placed the meter on the first plug in the circuit, nothing. I then Attached my meter to the supply wire for the plugs and found a healthy 12.7V. I pulled the first glow plug in the circuit and switched my meter to ohms and found that it read a healthy OL on the screen. A new set of glow plugs later and it starts beautifully every time.

Hours: 40
Running Total: 152

Exhibit A

Problem Child

Railing