Hobart Brothers 6910, Operation And Maintenance Manual With Illustrated Parts List

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ITEM MAINTENANCE REQUIRED
Lube Oil Check oil level daily or after every 10 hours of use. Change oil
after 200 hours or one month of use. Use heavy duty oil such as
SAE-30 (MIL-L-2104B). Engine lube oil capacity: 18 quarts.
Lube Oil Filter Change oil filter every 200 hours or 1 month of use.
Fuel Oil Filter Drain filter daily. Change filter element every 800 hours or 6 months
of use.
Starter Lubricate as needed, using heavy duty engine oil such as SAE-30
(MIL-L-2104B). Lubricate only when starter is removed from engine.
Coolant Check coolant level daily. Service and maintain coolant system
according to para.6. Engine coolant capacity: 20 quarts.
Air Cleaner Change air cleaner cartridge as required by air cleaner indicator
(on engine control panel).
AC Generator AC generator bearings are sealed and require no periodic
lubrication.
Lubrication and Maintenance Chart
Figure 1
4. Air Cleaner Service
For units that were manufactured up to and during August, 1990, the aircleaner used is a dry type with re-
placeable filter cartridges. For units that were manufactured after August, 1990, the air cleaner used is a
one-piece disposable type. To service the particular filter your particular unit has, proceed as follows:
A. Air Cleaner with Replaceable Filter
(1) Cartridge Removal (See Fig. 2)
A definite time schedule for changing the filter cartridge cannot be determined because of varying
operating conditions. Change the filter cartridge when the red indicator “flag” reaches the top of
the viewing chamber and locks in that position. Change the cartridge as follows:
(a) Open canopy door.
(b) Remove clamp assembly (3) from air cleaner
(c) Remove baffle assembly (7).
(d) Remove primary element (4), and replace with new element.
CAUTION: DO NOT CLEAN OR RE-USE CARTRIDGE.
(e) Inspect the interior of the cleaner housing (1). Make certain it is free from all foreign material.
OM-2028
August 31/90 Revised 2-1
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