VALVE & MOUNTING GP (NRS) 3793587 - Caterpillar

Reassemble Motor to Pump
Thoroughly clean the motor shaft and the hollow pump shaft. Remove the tape from the key (5) and keyway.
Apply a liberal amount of Loctite Nickel Anti-Seize No. 77164 to the pump shaft.
Install the shaft key (5) into the keyway.
Slide the motor shaft into the hollow pump shaft.
Reinstall the four washers (2) and nuts (1).Primary Strainer Removal and Installation
Primary Strainer Removal
Illustration 35 g06272994
(1) Primary Strainer
(2) Drain Plug
(3) Nut
(4) Strainer Cover
(5) Compression Ring
(6) Seal
(7) Strainer Housing
(8) Strainer Screens
Place a suitable drain pan underneath the primary strainer (1) to capture DEF fluid.
Remove and store the drain plug (2) from the bottom of the strainer cover (4). Allow DEF fluid to drain.
Inspect drain plug (1) and any seals, replace if damaged.
Install drain plug (2) into the bottom of the strainer cover (4).
Remove and store eight nuts (3) and the compression flange (5) located around the bottom of the strainer cover (4).
Remove and store the strainer cover (4) of the primary strainer (1).
Remove and inspect seal (6), replace if damaged.
Remove and discard the primary strainer screens (8) from the screen housing (7).Primary Strainer Installation
Install new primary strainer screens (8) into the screen housing (7).
Install screen housing (7) into the primary strainer (1).
Install the seal (6) onto the bottom of the strainer cover (4).
Install the strainer cover (4), compression flange (5), and eight nuts (3).
Open primary valve, operate DEF Transfer Pump and check for leaks around the bottom of the primary strainer (1).
Remove drain pan and dispose of DEF fluid.Secondary Strainer Removal and Installation
Secondary Strainer Removal
Illustration 36 g06272975
(1) Secondary Strainer
(2) Strainer Element
(3) Seal
(4) Strainer Cover
(5) Bolt
Place a suitable drain pan underneath the secondary strainer (1) to capture DEF fluid.
Remove and store the bolts (5).
Remove and store strainer cover (4).
Remove and inspect seal (3), replace if damaged.
Remove and discard strainer element (2).Secondary Strainer Installation
Install new secondary strainer element (2) into the secondary strainer (1).
Install the seal (3) onto the bottom of the strainer cover (4).
Install the strainer cover (4) with bolts (5).
Open secondary valve, operate DEF Transfer Pump and check for leaks around the bottom of the secondary strainer (1).
Remove drain pan and dispose of DEF fluid.Product Description
Extended Warranties and Service Contracts
A wide variety of protection plans are available for Cat Engines. Consult your Caterpillardealer for detailed information on the specific programs and coverages that are available.DEF Transfer Pump is an optional attachment to an engine system. Refer to the warranty information for your engine or consult your Caterpillar dealer.Customer Assistance
USA and Canada
When a problem arises concerning the operation or the service of a Marine engine, the problem will normally be managed by the dealer in your area.Your satisfaction is a primary concern to Caterpillar and to Caterpillar dealers. If you have a problem that has not been handled to your complete satisfaction, follow these steps:
Discuss your problem with a manager from the dealership.
If your problem cannot be resolved at the dealer level, use the phone number that is listed below to talk with a Field Service Coordinator:877-228-9900
The normal hours are from 7:00 AM