User's Manual
BTPAINTBALL.COM
17
Inconsistent
velocity
Battery may
be low.
Poppet o-ring
may be worn.
Replace battery with a fresh brand name alkaline 9-volt.
Replace poppet o-ring and apply fresh grease.
Velocity
drops off
when firing
multiple
shots
Air tank is not
screwed all the
way into the
TM-15’s regula-
tor ASA.
If during rapid firing the first ball comes out of the barrel at
full velocity and following shots decrease substantially,
watch the gauge on the TM-15 regulator to see if the nee-
dle drops down significantly and is slow to come back to
the set pressure. This is typically the result of not screwing
your air tank in enough. When screwing your air tank into
the TM-15's regulator ASA, it is important to not stop as
soon as the marker pressurizes, but to continue turning
until the air tank stops. It is also acceptable to install the air
tank when it is empty, then have it filled by a professional
while it is installed. This will ensure that you get the maxi-
mum air flow from your air tank.
Scratches
on bolt
Spring may be
damaged.
This can cause negative performance. The main spring should
be repaired by a trained technician or it can just be replaced.
Selector
switch not
working
Selector may
be installed
incorrectly
Check to be certain that the selector switch is installed with
keys facing down toward the trigger spring.
Leaks at
times while
shooting
multiple
shots
Poppet may be
sticking open.
Battery may be
low.
Solenoid may
be sticking
open.
Clean the old grease from the poppet o-ring and apply
fresh grease. If that doesn't help, replace the poppet o-ring
and apply fresh grease.
Replace battery with a fresh brand name alkaline 9-volt.
If the solenoid is sticking open occasionally, the regulator
pressure may be set too high. If the pressure is set to 200
psi or less, then the solenoid may be filled with dirt and/or
grease. See Maintenance section for instructions on how to
clean the solenoid.
Schematic
#
Description SKU
#
1 CHECK VALVE (air restricter) 17531
2 BOLT RUBBER TIP 17533
3 BOLT / BOLT GUIDE LARGE O-RING 17534
4 SPRING MAIN 17535
5 BOLT GUIDE SMALL O-RING 17537
6 BOLT GUIDE CAP O-RING 17538
7 POPPET O-RING 17540
8 BALL DETENT ASSEMBLY (complete) 17541
9 REGULATOR CAP SET SCREW (4-48 x .125 cup point) 17599
10 TRIGGER SET SCREW ( 6-32 x .250 flat point) 17602
11 POPPET SPRING 17623
12 POPPET ASSEMBLY (with replaceable tip) 17628
13 POPPET SEAL 17629
14 SELECTOR SCREW (flat head 4-40 x .5) 17650
15 CIRCUIT BOARD SCREW (button head 6-32 x .157) 17652
16 GRIP SCREW-TOP (button head 6-32 x .250) 17653
17 GRIP SCREW-BOTTOM (button head 6-32 x .438) 17654
18 PICATINNY RAIL SCREW (socket head 6-32 x .5) 17655
19 FOLDING SIGHT HEX NUT (6-32 .25 wide x .092 thick) 17657
20 SOLENOID SCREW (button head 10-24 x .250) 17658
21 BOLT GUIDE RETENTION SCREW (custom) 17659
22 BOLT 17661
23 BOLT GUIDE CAP 17664
24 SOLENOID ASSEMBLY (complete) 17665
25 SOLENOID SPACER (brass) 17670
26 REGULATOR ASSEMBLY (complete) 17671
27 REGULATOR GAUGE (plain 300 psi) 17672
28 MAIN BODY 17677
29 CIRCUIT BOARD 17679
17. Diagrams and Parts List
BT_TM-15_Manual.qxp 6/17/09 5:23 PM Page 17