TH220B, TH330B and TH340B Telehandlers Transmission and Hydraulic System Oil Level - Check Caterpillar


Transmission and Hydraulic System Oil Level - Check
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Before you check the level of the hydraulic oil, perform the following procedures:

  • Park the machine on a level surface.

  • Retract the boom.

  • Lower the work tool to the ground.


Illustration 1g01202853

An oil level gauge is located behind protection cover (3) on the left side of the machine. In order to open the protection cover, unlock lock (2) and turn lock (4) counterclockwise. Then, pull latch (1) outward.



Illustration 2g01205926
Hydraulic tank filler cap
SLA1-UP
SLB1-UP
SLC1-699


Illustration 3g01205930
Hydraulic tank filler cap
SLC700-UP

Note: Run the machine for at least five minutes in order to pressurize the hydraulic system.

You should look at oil level gauge (5) in order to check the level of oil in the hydraulic system. The oil level of the hydraulic system is correct when the oil level has reached the line that is marked "MAX" or if the oil level is halfway between the red line and the blue line on the oil level gauge. If necessary, add AVSpare TDTO to the correct oil level by the following method:

  1. Lift latch (6), and loosen hydraulic tank filler cap (7) slowly in order to relieve the pressure in the hydraulic system. Remove the hydraulic tank filler cap.

  2. Top up the hydraulic oil to the required level and install the hydraulic tank filler cap. Clean up any oil that has spilled. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" and Operation and Maintenance Manual, "Capacities (Refill)" for additional information.

  3. Close the protection cover.

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