thomann SK2119 User manual

VACUUM PUMP SERVICE
KIT SK2119
CAUTION: Improper assembly or use of damaged parts may
lead to premature failure. To avoid frequent repairs follow these
assembly procedures.
NOTE: Before you begin read these instructions thoroughly. Assemble the
necessary tools. You will need a T-15 and T-20 Torx driver for a torque wrench,
a side cutter and clean, soft cloths.
ALWAYS NOTE POSITION AND ORIENTATION OF PARTS AS REMOVED
TO ASSURE CORRECT POSITIONING WHEN REASSEMBLING.
INSTRUCTION SHEET
Part No. 642748 Rev A 01/07
©2006 Gardned Denver Thomas Inc.
Printed in U.S.A. All Rights Reserved
Service Kit Part Number SK2119
Parts included in this kit:
WARNING: Unplug the compressor before beginning disassembly.
Sheboygan, Wisconsin USA
608782 DIAPHRAGM (2)
623090 GASKET O-RING-
HEAD (2)
623122 O-RING 1/16 X 3/8 X 1/2 (2)
633525 VALVE - UMBRELLA (4)
625685 SCREW #10-9
PLASTITE (2)
625381 SCREW #8-11 x 1.700
PLASTITE (8)

2
3B
2
2
3B
2
DIAPHRAGM REPLACEMENT
1. Remove hold down plate screw, hold down plate and diaphragm from connect
ing rod top. Wipe connecting rod top and hold down plate with a clean soft cloth.
2. Center new diaphragm and hold down plate over connecting rod holes.
Make sure all holes align properly and that the diaphragm is centered
in the well of the housing. Insert new screw. Torque screw to 35 in-lbs.
3. Replace the connector tube into the heads. Place the head, o-ring gasket, and
head cap onto the housing. Torque new head screws to 35 in-lbs. in a criss-cross
pattern.
Hold Down Plate
Screw
Diaphragm
Connecting Rod
Hold Down
Plate
INTAKE & EXHAUST VALVE REPLACEMENT
1. Remove 4 head screws and head cap. Discard screws. Set head cap aside. Carefully
remove connector tube from head. Remove head from housing.
2. Remove gasket and discard.
3. Remove intake and exhaust umbrella valve by grasping the top and pulling from the
head.
4. Wipe inside of head with a clean soft cloth, be sure to remove any excess gasket.
5. Remove and replace the o-rings on the connector tube.
Umbrella Valve
- Exhaust
Gasket
Head Screw
Head Cap
Umbrella Valve
- Intake
Figure #1
Figure #2
5. Replace umbrella valves by
placing the stem into the center
of the port and pulling the stem
from the other side of head to
seat valves.
6. Trim the exhaust valve stem
to be flush with the face of
the head. This is to prevent
an interference fit with the
diaphragm.
ATTENTION: Service one side of the compressor at a
time to avoid confusion.
Head
Trim after
installation
2
3B
2
Replace O-Rings