Whirlpool TU 4100 Owner's Manual download pdf (Page 22)

Repair Guide - Hydraulic Module

Recommended Tools for Overhaul & Repairs

Part Number Description

Comment

93-4333

Head Manifold Installation Tool

Included in tool kit, 93-4356

93-5500

Hydraulic Module Rebuild Fixture, i-Series For bench-top overhauls

56-3712

Poppet Seating Tool, i-Series

86-2972

Pressure Gauge, 0-5000 PSI

93-4311

Rod Seal Insertion Tool

93-4708

3/4" Tie Bolt Installation Tool

For quick-driving the tie bolts

Included in tool kit, 93-4356

If the hydraulic module is accessible from below, it may be

overhauled in-place. An advantage of doing this is that the

shafts are kept from rotating by the cross drive clamps.

This is useful since the piston nuts must be tightened with

300 ft-lbs [407 N-m] of torque. Some other advantages are

that no heavy lifting is required and the shafts are always

kept in proper alignment with the cross-drives.

The following pages illustrate the assembly of a hydraulic

module.

Depending on shop equipment available and the extent of

the overhaul, it may be more convenient to remove the

entire hydraulic module. An advantage of this is that the

majority of the work would be done in a comfortable place

away from the dirty underside of the conveyor.

Hydraulic modules may be shipped to Hallco for overhaul.

Hallco recommends keeping the switching valve assembled

in order to allow Hallco to fully test the overhauled module.

Hydraulic Module Overhaul

Doc # 99-5846-A

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Whirlpool TU 4100 Owner's Manual Page 22