How to Repair a Timberwolf Hard Seal Using Kit #11451

Always make sure all high-pressure water has been removed from pump by following machine manufacturers' safety instructions. Failure to do so can cause severe injury or death.

Remove HP cylinders and check valves from intensifier. Clean cylinders and check valves thoroughly, following standard procedures.

Scotch-Brite, or similar abrasive pad, can be used on sealing faces of cylinder and check valve to clean marking and/or galling.

Place HP cylinder on seal installation spacer tool, taper side down

Apply light coat of high vacuum grease to both shoulders of spacer tube

Insert spacer tube into cylinder with LP poppet end down

Place locator tool on cylinder

Place sleeve in locator tool with taper end up

Apply light coat of high vacuum grease to red o-ring

Roll red o-ring into groove on HP seal

Insert assembled HP seal into sleeve with red o-ring down towards cylinder

Press HP seal into cylinder using non-stepped end of push tool

Hold down sleeve while inserting HP seal to ensure seal doesn't catch on edge of HP cylinder

Place hoop in sleeve with sharp edge of hoop down towards HP cylinder

Seat hoop in HP cylinder using non-stepped end of push tool and dead blow hammer

Hold down sleeve while seating hoop to ensure hoop doesn't catch on edge of HP cylinder

Remove locator tool, sleeve, and push tool

Apply a light coat of blue goop to outer face of inset on end of HP cylinder

Flip cylinder over and remove seal installation spacer tool

Insert LP poppet in LP poppet basket so stem of poppet goes through center hole in basket

Make sure LP poppet can freely move in LP poppet basket

Insert LP poppet and LP poppet basket into spacer tube in HP cylinder

Place seal installation spacer tool on end of HP cylinder with step side down

Place mounting cradle on bottom studs of intensifier with tabs toward outside of intensifier

Push HP cylinder onto plunger using mounting cradle as a guide and seal installation spacer tool as a push tool

Remove seal installation spacer tool, taking care to that LP poppet stays in LP poppet basket

Apply light coat of o-ring lube to -035 and -031 o-rings for check valve

Place -031 and -035 o-rings into grooves on check valve

Apply light coat of blue goop to tapered (sealing) face of check valve

Apply light coat of blue goop to bottom step of check valve

Insert check valve into HP endcap

Slide HP endcap with check valve onto intensifier studs

Push HP endcap against HP cylinder and align tabs of mounting cradle so cradle supports HP endcap

The mounting cradle is used to ensure proper alignment between HP cylinder an HP endcap during torquing

Thread and hand-tighten nuts onto studs using a cross pattern

Torque nuts using a cross pattern according to the following directions

Use numbers in picture as a guide for location number found in included table for torquing procedure

Torque each nut in torque order found in table to each torque value prior to stepping to next value

Continue with HP poppet installation and standard start-up procedures