TOOL 5R6278 - Caterpillar

Illustration 1 g02109428 Wipe all fittings before you apply lubricant.
Illustration 2 g01122104
Apply lubricant through the fitting at the base of each boom cylinder.
Illustration 3 g00685798
The fittings are at the base of the boom. The fittings can be serviced from the platform on the storage box. To lubricate the lower boom bearings, apply lubricant through fittings (1) and (2). To lubricate the boom cylinder rod, apply lubricant through fittings (3) and (4). To lubricate the stick cylinder head, apply lubricant through fitting (5). Note: To ensure proper lubrication of the lower boom bearings and of the boom cylinder rod end bearings, lubricant should be applied through fittings (1), (2), (3), and (4). Apply lubricant first when the boom is raised and any work tool is suspended. Then apply lubricant when the boom is lowered and the work tool is rested on the ground with a slight downward pressure.
Illustration 4 g01396856
Apply lubricant through fittings (6) and (7). These fittings are on the bucket.
Apply lubricant through fittings (8) and (9). These fittings are on the stick.
Apply lubricant through fittings (10), (11), and (12). These fittings are on the link.
Illustration 5 g01122102
Apply lubricant through fitting (13). Fitting (13) is at the connection point of the boom and of the stick.
Illustration 6 g01122103
Apply lubricant through fitting (14) on the stick cylinder rod. Apply lubricant through fitting (15). Fitting (15) is at the connection point of the boom and of the stick. Apply lubricant through fitting (16) on the bucket cylinder head end. Grease Block on the Stick
Illustration 7 g01396894
(13) Left side connection point of boom and stick
(14) Stick cylinder rod
(15) Right side connection point of boom and stick
(16) Bucket cylinder head end Some machines may be equipped with a grease block that is located on the stick. Apply lubricant through the fittings.