Harrington Hoists and Cranes (N)ER Hoist - ((N)ER2) - Manual (Page 43)

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6.3.4 ER2 OIL LEVEL – For hoists equipped with a Mechanical Load Brake/Friction Clutch, the oil level is
checked through the oil check hole at the top of the hoist. DO NOT remove the oil plug exposing the oil
level check hole on the side of the hoist. The oil level will be above the hole and will leak out. A dip
stick should be used to check the oil level through the top hole as shown in the in Figure 6-3 for ER2
hoists. Reference Table 6-5 for check distances from the top of the hoist body.
Table 6-5 ER (Mechanical Load brake Equipped) Gear Oil Check Distances
Capacity Code
Check Distance
(inches)
Check Distance
(millimeters)
001H, 003S 2.95 75
003H, 005L, 005S 3.94 100
010L, 010S, 020C 3.94 100
015S, 020L, 020S, 030C 4.72 120
025S, 030L, 050L 5.12 130
6.3.5 REPLACING OIL – Change gear oil at least once every 5 years. The oil should be changed
more frequently depending on the hoist's usage and operating environment. Refer to Section 6.1.3.
Follow the procedure below for replacing the gearbox oil for your hoist:
To drai n the current oil from the hoist remove “Oil Plug” on top of the hoist and the “Oil Drain
plug” on the bottom of the hoist. Allow the old oil to drain completely. Refer to Figure 6-4 for oil
plug locations.

Dispose of the used oil in accordance with local regulations.
Figure 6-4 Oil Filling Diagram
Ensure that the oil plugs for the oil level check holes and the drain hole are reinstalled and
secured into the hoist body.
Refill the gear case with the correct quantity and type of new oil or until the oil level is within the
range shown in Table 6-6. Refer to Figure 6-4. Note that the NER2 & ER2 models have
different oil quantity requirements.