Giant LP200-SS, Operating Instructions/ Repair And Service Manual

6

1)  Loosen and remove 

tension plugs (48) with a 

36mm socket wrench.

TO CHECK VALVES

NOTE:

Always take time to lubricate all metal and non-metal parts with a light film of oil before reassembling.  This step 

will help ensure proper fit, at the same time protecting the pump non-metal parts (elastomers) from cutting and scoring.

44B               44A               45

2)  Remove the support ring 

(44B),  O-ring  (44A)  and 

tension spring (45).

3)  Take  out  discharge  valve 

assemblies (46) by pull-

ing them upwards out of 

the  valve  casing  (43)  with 

a snap-ring tongs or any 

other  pull-off  device. Then 

remove inlet valves in the 

same way.

4)  Loosen valve seats (46A) 

and valve spring (46C) 

from spacer pipe (46D) 

by lightly hitting the valve 

plate (46B) with a plastic 

stick. LP600/LP600-4000 

pumps have an addi-

tional valve spring guide 

(46E). Check sealing 

surface and replace worn 

parts.  Reassemble with 

new O-rings (44A) if pos

-

sible and oil them before 

installing.  

5)  Tighten up tension plugs 

(48) to 59 ft.-lbs. (80 

Nm).

46A

46D

46B

46C

LP200-SS Repair Instructions