TH220B, TH330B and TH340B Telehandlers Hydraulic System Caterpillar

General Information Table

Usage:

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Table 1
Hydraulic Specifications
Pressures
Description	Model
Description	TH220B	TH330B	TH340B
Steering Signal Pressure	16250 ± 750 kPa (2355 ± 110 psi)	16250 ± 750 kPa (2355 ± 110 psi)	16250 ± 750 kPa (2355 ± 110 psi)
Margin Pressure	2200 ± 100 kPa (320 ± 15 psi)	2200 ± 100 kPa (320 ± 15 psi)	2200 ± 100 kPa (320 ± 15 psi)
Load Sensing Pressure	22800 ± 500 kPa (3300 ± 72 psi)	22800 ± 500 kPa (3300 ± 72 psi)	22800 ± 500 kPa (3300 ± 72 psi)
Maximum Pump Pressure	25000 ± 500 kPa (3626 ± 73 psi)	25000 ± 500 kPa (3626 ± 73 psi)	25000 ± 500 kPa (3626 ± 73 psi)
Standby Pressure	4500 ± 1000 kPa (650 ± 145 psi)	4500 ± 1000 kPa (650 ± 145 psi)	4500 ± 1000 kPa (650 ± 145 psi)
Pressure Reducing Valve (Pilot Oil Pressure at Standby)	3450 ± 150 kPa (500 ± 22 psi)	3450 ± 150 kPa (500 ± 22 psi)	3450 ± 150 kPa (500 ± 22 psi)
Pressure Reducing Valve (Pilot Oil Pressure at Stall)	3450 ± 150 kPa (500 ± 22 psi)	3450 ± 100 kPa (500 ± 15 psi)	3450 ± 150 kPa (500 ± 22 psi)
Auxiliary Pressure	21000 ± 500 kPa (3045 ± 73 psi)	21000 ± 500 kPa (3045 ± 73 psi)	21000 ± 500 kPa (3045 ± 73 psi)
Hoist Pressure for Trailer	25000 ± 500 kPa (3625 ± 72 psi)	25000 ± 500 kPa (3625 ± 72 psi)	N/A
Braking pressure for Trailer	13500 ± 1500 kPa (1950 ± 220 psi)	13500 ± 1500 kPa (1950 ± 220 psi)	N/A
Implement Oil Temperature	55° ± 10°C (131° ± 18°F)	55° ± 10°C (131° ± 18°F)	55° ± 10°C (131° ± 18°F)
Flow Rate
Auxiliary Flow Rate (high idle)	60 ± 5 L/min (16 ± 1.3 US gpm)	60 ± 5 L/min (16 ± 1.3 US gpm)	60 ± 5 L/min (16 ± 1.3 US gpm)

Reference: For more information about implement oil, see Operation and Maintenance Manual, "Lubricant Viscosities" for your machine.

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Table 2
Pressure of the Fan Pump and Speed of the Fan Motor
Engine Speed	Pump Pressure	Speed of the Fan Motor
Low Idle	4000 ± 200 kPa (580 ± 30 psi)	1230 ± 50 RPM
High Idle	15000 ± 200 kPa (2175 ± 30 psi)	2400 ± 50 RPM
Fan Motor in Reverse or Counterclockwise Direction
Low Idle	4000 ± 200 kPa (580 ± 30 psi)	1230 ± 50 RPM
High Idle	14500 ± 200 kPa (2100 ± 30 psi)	2840 ± 50 RPM

Note: Refer to Operation and Maintenance Manual, SEBU7708, "Operator Controls" for the proper operation of the reverse switch.

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Table 3
Cycle Times for Implement Functions (Seconds) Engine at high idle and the hydraulic oil temperature above 45 °C (113 °F)
Function	Model
Function	TH220B	TH330B	TH340B
Boom Raise	4 - 6	6 - 8	6 - 8
Boom Lower	3 - 5	5 - 7	4 - 6
Boom Extend	4 - 6	5 - 7	8 - 11
Boom Retract	4 - 6	5 - 7	5 - 7
Coupler Tilt Backward	2 - 3	2 - 3	2 - 3
Coupler Tilt Forward	2 - 3	2 - 3	2 - 3
Frame Level Left to Right	N/A	N/A	8 - 17
Frame Level Right to Left	N/A	N/A	8 - 17