Valves
1. With the valve cover removed, check the valves
for dirt or debris.
2. Remove dirt with a gentle puff of air or by using
a soft brush.
3. Replace valve(s) if necessary.
NOTE: Apply a very thin film of lubricant to the
ball and sealing surface of the valve
before installing (see FIGURE).
Pump Performance Test
After extended idleness and periodically during use,
check the Pump for proper performance with the
following test:
Field Leakage Test
1. Plug the Pump inlet by inserting an unbroken
Detector Tube into the Tube Holder.
2. Deflate the Pump fully, release, and wait 10
minutes. The Pump is leak-free if the distance
from the bellows to the frame is 1/2-inch or
greater after 10 minutes. If the Pump leaks,
check the Tube Holder and, if necessary, the
valves (see "Maintenance"). After repair, re-test
for leakage
Use of a Pump that leaks may result in the
under- estimation of a hazard and could
result in property damage, injury or death.
If Pump performance is inadequate and cannot be
corrected by these measures, return the Pump to
MSA for repair. Call (1-800-MSA-2222) for the location
of your nearest service center.
ITEM NO.
DESCRIPTION
PART NO.
** 1
Elbow Fitting
634181
2
Plug, 10-32
630019
3
Screw, 6-32 x 5/8
634373
** 4
Tubing
603278
** 5
Screw, 4-40 x 1/2
634372
6
Screw, 4-40 x 5/16
634371
7
Tube Holder
463801
8
Filter Disk
463799
9
Valve with Item 31
627409
10
Cover Assembly
489006
11
Front Cap
487501
12
Bellows Replacement Kit
Bellows with Rings
488940
Belt, 2 each (Item 23)
13
spring
487490
14
Back Cap
487520
15
Wrist Strap
488034
16
Roll Pin
627587
17
Screw, 10-32 x 3/8
634374
18
Knob
487074
19
Shaft
487487
20
Screw, 4 x 3/8 self tapping
628515
21
Counter
487833
22
Frame with Bushings
487601
23
Belt
634542
** 26
End-of-Stroke Indicator Assembly
Indicator
Screw, 2 each (Item 5)
488835
Tubing (Item 4)
Elbow Fitting (Item 1)
* 27
Pouch
488394
* 28
Instructions
488781
*** 29
Tubing, 20"
602294
***30
Holder Assembly
485233
31
Lubricant
28317
*Listed but not shown
**Deluxe model only
***Hazmat kit only
"
CAUTION
©MINE SAFETY APPLIANCES COMPANY 2008 P.O. BOX 427, PITTSBURGH, PA 15230
(L) REV 3 488781
