Gardner Denver PZ-11

11” Stroke Triplex Mud Pump

PZ-11 Data

Electrical Connection Panel

Flex 3

Drive Belt Adjustment Screws

Flex 3

Flex 3

Drive Belt Adjustment Screws

Flex 4

Drive Adjustment Slots

Lube Oil Pump

Liner Wash Pump & Sump

Water Trap Drain

What’s Wrong With This Picture?

Crosshead Inspection Plate

Suction A/O Knife Valve

Suction Stabilizer

Fluid End View

Centrifugal Charging Pump

Discharge Pulsation Dampener

Suction Header and Drain Valve

Power End Inspection Window

H&P Superscrew Valve Cap

Torque Spec’s

100 lbs 1st Pass

200 lbs 2nd Pass

View Into Rod Bay

Two piece

piston rod

Special

modified rod

clamp

H&P Liner Retention System

Superbolt

Retainers

Lower View of LRS

Compression

Sleeve Splash Shield

Installation of the H&P Liner Retention

System (LRS) in Gardner Denver PZ-11

mud pumps

Super Bolt Liner Retention System

Clean both faces of the wear plate, and the gasket counter bore (in

the module) using a light scuff pad (non metallic, not emery cloth)

and a light oil lubricant.

Clean the pilot bore surface with a wire wheel, and lubricate the

cleaned surface with a high-temperature, grease-based, anti-galling

compound (Never Seize, Copper Kote, or similar).

Super Bolt Liner Retention SystemInstall a new CDI pressure energized (spring supported)

wear plate gasket (GD part # 314PZL316).

Install the wear plate

Install a new CDI pressure energized liner gasket (GD part

# 316PZL316) into the Southwest 1377B liner groove. The

Southwest 1377B liner has an effective bore length of 14.625″.

Insert the liner into the pilot bore, and slide it toward the

module until it makes contact with the wear plate. Slide the

new LRS liner clamp plate over the liner and onto the studs.

Super Bolt Liner Retention SystemApply a grease-based, molybdenum disulfide, anti-galling compound (Fel-Pro

670, Sweeney 503, or Loctite 51048) to the exposed length of the four corner

studs, as well as the load face of the jackbolts and the hardened washer.

Install the hardened washer and Superbolt multi-jackbolt tensioner onto each

of the two upper studs, outboard corners.

Multi-

jackbolt

tensioner

Hardened

washer

LRS stud

extender

Super Bolt Liner Retention System

Install an LRS stud extender onto each of the two lower studs, outboard

corners.

Using an open-end wrench, or a socket and drive, lightly snug the multi-

jackbolt tensioners and the stud extenders against the new liner clamp

plate, to hold the liner in place against the wear plate.

Slide an LRS compression sleeve over each of the two stud extenders.

LRS stud

extender

LRS

compression

sleeve

Super Bolt Liner Retention SystemInstall a hardened washer and multi-jackbolt tensioner onto each of the two

stud extenders, to hold the compression sleeves in place.

Starting with the tensioner at the 10:00 position, back the entire tensioner

off 1/4 turn.

At the 10:00 position tighten the 3 jackbolts to 55 ft.lbs each, using a torque

wrench and a 6-point 5/8″ socket.

10:00 position

(1st)

7:00 position

(3rd)

2:00 position

(4th)

5:00 position

(2nd)

•Repeat at the 5:00 position, then the 7:00 position, and last the 2:00

position. The sequence and cross pattern is important to help ensure

that the gaskets are squarely loaded.

Super Bolt Liner Retention System

Return to the tensioner at the 10:00 position, and tighten the

jackbolts to 110 ft.lbs each, using a torque wrench and a 6-

point 5/8″ socket.

Repeat at the 5:00 position, then the 7:00 position, and last the

2:00 position. The sequence and cross pattern is important to

help ensure that the gaskets are squarely loaded.

Check all jackbolts to ensure that they are torqued to at least

110 ft.lbs (do not exceed 125 ft.lbs).

Line Discharge Valve

Open to put pump on line

Close to take off of line

Demco 5” 5,000 psi gate valve

Pressure Relief System

Manual relief valve

Demco 2” 5,000 psi

Preset Relief Valve

(Pop-Off Valve)

Discharge cross & strainer

Mud Line Connection

Note the extremely large nut and extended neck

This is a 1003 mis-aligning union. It makes a more

Stable connection when pipe is not lined up perfectly

Mud Line Connection

Note the deep rounded bowl in the female

Connection, This allows the male end to

Seal without being straight.

H&P Special Parts Lists

H&P Special Parts Lists

H&P Special Parts Lists

H&P Special Parts Lists

ANY QUESTIONS?Prepare a JSA to change Piston

and liner using H&P LRS.

Prepare a JSA to change a suction

valve and seat.