Specifications include, but are not limited to: A - All maintenance requirements of electrical elevators, which are applicable to the hydraulic elevators, shall apply herein. B - Pressure Tanks Pressure tanks shall be thoroughly cleaned internally, inspected and tested in accordance with the safety code standards and rules. C - Piston Rods Piston rods of roped hydraulic elevators shall be thoroughly cleaned, inspected, and tested in accordance with the safety code standards and rules. D - Pressure Tank Water Level The liquid level in pressure tanks should be maintained at about two thirds (2/3) of the capacity of the tank and/or in accordance with the manufacturer's recommendation. E - All operating accessories of cab and hoistway doors and gates shall be maintained in good adjustment.