Section II. DESCRIPTION AND DATA
is winterized for below freezing temperatures. A space
3. Description
heater (6) maintains proper' lubricant viscosity at low
temperatures. The lubricant container consists of three
The Gray model 250-530 lubricating and servicing unit
steel compartments for storing gear lubricant, engine oil,
(figures 1 and 2) is self-contained, gasoline-powered,
and grease. A heat duct directs the fresh air output of
and equipped for heavy-duty servicing. Air operated
the space heater into the center compartment heat
pumps provide delivery of lubricant and motor oil from
chamber for heating grease and oil in the compartment
the storage tanks through reel mounted hose assemblies
(19, fig. 2) directly to bearings and gearcases. The unit
1
Inclosed door latch
6
Hand lift handle
11
Low-pressure pump
2
Inclosure lift ring
7
Tie-down rings
12
Air pressure gage
3
Engine control panel
8
Skid (2 rqr)
13
Air regulator valve
4
Door lock
9
Tank fill cover
14
Louver
5
Engine
10
Fill cover handle
15
Inclosure pump access door
Figure 1. Lubricating unit, right three-quarter view.
3
