WRENCH-TORQUE 2622759 - Caterpillar

Suction Filter
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Suction Filter IndicatorThe suction filter is equipped with a dial type restriction indicator. Depending on the cleanliness of the oil being transferred, the suction filter may become plugged more quickly than the discharge filter. The suction filter is a replaceable 100 mesh screen. Replace the suction filter before the indicator is in the "RED" range using a 9U-6985 Filter Element .Modifying the 174-9158 Filter Cart for Kidney loop Filtering of Small Hydraulic Systems
Modification Parts List
The following parts are required to modify the filter cart into a kidney loop filtering system. Specific filtering applications on specific machines may require additional parts.
Table 3
Parts List    
Item     Qty     Part No     Description    
(1)     1     122-6906     844 Hose,
25.4 mm (1.00 inch) diameter x
3050 mm (10.0 ft)    
(2)     2     124-1909     Hose End - male, 1 inch NPT    
(3)     1     3B-7257     Bushing, 1-1/4 x 1 inch NPT    
(4)     1     190-8318     Female Quick Disconnect    
(5)     1     190-8319     Male Quick Disconnect    
(6)     1     201-8057     Dust Cap for Female Quick Disconnect    
(7)     1     201-8059     Dust Cap for Male Quick Disconnect    Discharge Hose Modification
Remove the nozzle and quick disconnect assembly from the discharge hose.
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190-8319 Nipple (5) And 201-8059 Dust Cap (7)
Install a 190-8319 Nipple (5) and 201-8059 Dust Cap (7) on the end of the discharge hose.
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190-8319 Nipple And 201-8059 Dust Cap Added To Discharge Hose
Replace the filter elements with a 198-3188 Element (B) and 9U-6983 Element (A) .Suction Hose Modification
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Remove Spiral Wound Suction Hose From Filter Cart
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Install 3B-7257 Bushing (3) in Suction Port
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Install New Suction Hose In Suction Port (1) 122-6906 Hose (2) 124-1909 Hose Ends (Qty 2) (3) 3B-7257 Bushing
Fabricate a kidney loop suction hose from a suitable length of 122-6906 Hose , (1) and two 124-1909 Male Hose Ends (2) .
Install 190-8318 Female Quick Disconnect Coupling and 201-8057 Dust Cap on one end of the new suction hose.
Remove the clear spiral wound hose from the suction side of the filter cart.
Install a 3B-7257 Bushing (3) in the suction port on the filter cart.
Install the new suction hose in the filter cart suction port.