Graco L200CS Repair, Troubleshooting, Disassembly and Reassembly of Throat Packings and Cartridge

Repair

Repair

Troubleshooting

See Check-Mate Pump Packages manual 312376.

Required Tools

•	Torque wrench
• Bench vise, with soft jaws
•	Rubber mallet
•	Hammer
• 400 mm (15.8 in.) adjustable wrench
•	O-ring pick
•	Flat head screwdriver
• 13 mm (1/2 in.) dia. brass rod
• Set of socket wrenches
• Set of adjustable wrenches
• Packing nut wrench (supplied with
	pump package)
• 24 in. (610 mm) adjustable wrench
• M4 hex key wrench
•	Thread lubricant

7.Use packing nut wrench (supplied) to loosen and remove packing nut/enclosed wet cup (9).

9

ti10623a

FIG. 2

8.Use an adjustable wrench to loosen cartridge (3); slide it and throat packings (P) up and off displace- ment rod (1).

• Thread sealant

• Loctite® 2760™ or equivalent

Disassembly and Reassembly of Throat Packings and Cartridge

All new Check-Mate displacement pumps are equipped with a throat packing cartridge (3) that enables easy removal and replacement of throat packings without the complete disassembly of the displacement pump.

1. Run air motor and displacement pump to bottom of

stroke.

P

(MaxLife)

3

4

1

2

FIG. 3

P

(Severe Duty)

ti11118a

2.	Relieve pressure. See Check-Mate Pump Packages
	manual 312376 for instructions.
3.	Remove air motor coupling assembly from displace-
	ment rod. See Check-Mate Pump Packages manual
	312376 for instructions.
4.	Push air motor piston rod up to top of stroke.
5.	Remove wet cup cover (present on enclosed wet
	cups only).
6.	Place an absorbent cloth in wet cup (9) to absorb
	Throat Seal Liquid (TSL).

9.Replace throat packings (P) according to specific packing kit into cartridge (3). See Packing Kits in Parts starting on page 18.

10.Remove and replace o-ring (4).

11.Slide cartridge (3) and throat packings (P) back on to displacement rod (1). Be careful to not damage packings.

312375J 7