Repair
3A8564C
13
Repair
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
• 24 in. (610 mm) adjustable wrench
• M4 hex key wrench
• Thread lubricant
• Thread sealant
• Loctite
®
2760
™
or equivalent
Disassembly
NOTE:
When disassembling displacement pump, lay
out all removed parts in sequence to ease reassembly.
Clean all parts with a compatible solvent and inspect
them for wear or damage.
1. Relieve pressure see
,
page 9.
2. Disconnect displacement pump from air motor as
illustrated in your Check-Mate Pump Package
manual 312376, 3A6331 or 333586.
NOTE:
100 cc Displacement Pump L100CE, shown in
the disassembly illustrations. Both 100 cc
Displacement Pump L100CE and 200 cc Displacement
Pump L200CE procedures are the same.
3. Place displacement pump in a vise, with jaws
placed on the section that is needed to be secure
while removing other parts in each step.
4. Push on the upper displacement rod (118) to
expose flats of the lower shaft assembly (125). Hold
flats of the lower shaft assembly (125) with an
adjustable wrench, and use a second wrench to
unscrew shovel nut (133) from lower shaft
assembly. Slide shovel piston (132) off rod. Inspect
surfaces of shovel nut and lower shaft assembly for
scoring, wear, or other damage. See F
. 7.
5. Use an adjustable wrench on the hex of the intake
cylinder (131) and unscrew it from the valve
housing (117). See F
. 8.
F
IG
. 7
F
IG
. 8
125
118
132
133
131
117
