VALVE GP-RELIEF 6T4938 - Caterpillar

Personal injury or death can result from machine articulation or movement. Machine frames can move and a person can be crushed. Connect the steering frame lock between the front and rear frames before working on the machine.Before operating the machine, place the steering frame lock in the stored position.Failure to place the steering frame lock into the stored position before operating can result in loss of steering.
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The sight gauge for the hydraulic oil tank is located on the right side of the machine.Check the hydraulic oil level with the machine on a level surface and the parking brake engaged. The engine must be at low idle and the bucket level on the ground.
If the oil is cold, maintain the oil level to the "FULL COLD" mark (4) in sight gauge (2) .If the oil is at operating temperature, maintain the oil level to the "FULL HOT" mark (3) in sight gauge (2) .
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Open the hydraulic tank access cover located on the upper right side of the machine.
Relieve the hydraulic tank pressure by pushing top of breaker relief valve (5) before removing the filler cap.
Remove oil filler cap (1) slowly to relieve any remaining pressure. Add oil, if necessary, through the filler tube.
Clean the oil filler cap and install the oil filler cap.