OM2231 Safety - Section 22 Warnings and Cautions Page 22-7 seconds of time to pass before opening (disconnect- ing) the battery disconnect switch. This time period allows hydraulic pressure to be released from the steering accumulators. A warning plate is located above the hydraulic sys- tem (APU) quick disconnect fittings in front of the hydraulic tank. The plate provides instructions to the operator or technician for towing a disabled truck. This plate specifies the requirements for an auxiliary source of supply for hydraulic oil and the proper hook-up. This plate is located on the battery equalizer box.
When the battery disconnect lever is in the left-hand position, it disconnects power (opens the circuit) from the batteries to the truck. When the lever is in the right-hand position, it connects (closes the circuit) from the batteries to the truck. Ensure the steering and brake systems are operating properly before towing the truck. A wheel motor oil level decal is attached to the gear cover on both the electric wheel motors. This decal stresses that the truck must be on a level surface and parked for 20 minutes prior to checking the oil level. This is necessary in order to get an accurate reading.
Warning decals are applied to both brake accumula- tors located inside the brake system cabinet behind the operator cab. These decals remind servicing technicians to close the accumulator drain valves after they have been opened to bleed brake pres- sure. It further warns not to over-tighten the drain valves to prevent damage to the valve seat(s). This plate is located on the battery equalizer box. After the key switch is turned OFF, allow at least 90